Documentation for classes includes syntax, usage information, and code samples for methods, properties, and event handlers and listeners for those APIs that belong to a specific class in ActionScript. The classes are listed alphabetically. If you are not sure to which class a certain method or property belongs, you can look it up in the Index.


 ClassPackageDescription
 AbstractConsumer
mx.messaging The AbstractConsumer is the base class for both the Consumer and MultiTopicConsumer classes.
 AbstractEvent
mx.rpc.events The base class for events that RPC services dispatch.
 AbstractInvoker
mx.rpc An invoker is an object that actually executes a remote procedure call (RPC).
 AbstractMessage
mx.messaging.messages Abstract base class for all messages.
 AbstractOperation
mx.rpc.http An Operation used specifically by HTTPService or HTTPMultiService.
 AbstractOperation
mx.rpc The AbstractOperation class represents an individual method on a service.
 AbstractProducer
mx.messaging The AbstractProducer is the base class for the Producer and MultiTopicConsumer classes.
 AbstractService
mx.rpc The AbstractService class is the base class for the HTTPMultiService, WebService, and RemoteObject classes.
 AbstractTarget
mx.logging This class provides the basic functionality required by the logging framework for a target implementation.
 AbstractWebService
mx.rpc.soap AbstractWebService is an abstract base class for implementations that provide RPC access to SOAP-based web services.
 AccConst
mx.accessibility The AccConst class defines constants defined in Microsoft's Active Accessibility (MSAA) specification.
 AccImpl
mx.accessibility AccImpl is Flex's base accessibility implementation class for MX and Spark components.
 Accordion
mx.containers An MX Accordion navigator container has a collection of child MX containers or Spark NavigatorContent containers, but only one of them at a time is visible.
 Accordion
spark.containers An Spark Accordion navigator container has a collection IVisualElements, but only one of them at a time is fully visible.
 AccordionHeader
mx.containers.accordionClasses The AccordionHeader class defines the appearance of the navigation buttons of an Accordion.
 AccordionHeaderAccImpl
mx.accessibility AccordionHeaderAccImpl is a subclass of AccessibilityImplementation which implements accessibility for the AccordionHeader class.
 AccordionHeaderSkin
mx.skins.halo The skin for all the states of an AccordionHeader in an Accordion.
 AccordionHeaderSkin
mx.skins.sparkThe Spark skin class for the header of the MX Accordion container.
 AccordionLayout
spark.layouts An AccordionLayout class arranges the layout elements in a vertical or horizontal sequence, with one of them at a time fully visible.
 AccordionSkin
spark.skinsThe default skin class for a Spark Accordion container.
 AcknowledgeMessage
mx.messaging.messages An AcknowledgeMessage acknowledges the receipt of a message that was sent previously.
 ActionBar 
spark.components The ActionBar class defines a component that includes title, navigation, and action content groups.
 ActionBarButtonSkinBase
spark.skins.mobile.supportClasses Base skin class for ActionBar buttons in mobile applications.
 ActionBarDefaultButtonAppearance 
spark.components The ActionBarDefaultButtonAppearance class defines the constants for the allowed values of the defaultButtonAppearance style of ActionBar.
 ActionBarSkin 
spark.skins.mobile The default skin class for the Spark ActionBar component in mobile applications.
 ActionEffectInstance
mx.effects.effectClasses The ActionEffectInstance class is the superclass for all action effect instance classes.
 ActionScriptSkinBase
spark.skins ActionScript-based skin for both mobile and desktop applications.
 ActivatorSkin
mx.skins.halo Defines the up, down, and over states for MenuBarItem objects.
 AddAction
spark.effects The AddAction class defines an action effect that corresponds to the AddChild property of a view state definition.
 AddActionInstance
spark.effects.supportClasses The AddActionInstance class implements the instance class for the AddAction effect.
 AddChild
mx.states The AddChild class adds a child display object, such as a component, to a container as part of a view state.
 AddChildAction
mx.effects The AddChildAction class defines an action effect that corresponds to the AddChild property of a view state definition.
 AddChildActionInstance
mx.effects.effectClasses The AddChildActionInstance class implements the instance class for the AddChildAction effect.
 AddItemAction
mx.effects The AddItemAction class defines an action effect that determines when the item renderer appears in the control for an item being added to a list-based control, such as List or TileList, or for an item that replaces an existing item in the control.
 AddItemActionInstance
mx.effects.effectClasses The AddItemActionInstance class implements the instance class for the AddItemAction effect.
 AddItems
mx.states Documentation is not currently available.
 AddRemoveEffectTargetFilter
mx.effects.effectClasses AddRemoveEffectTargetFilter is a subclass of EffectTargetFilter that handles the logic for filtering targets that have been added or removed as children to a container.
 AdvancedDataGrid
mx.controls The AdvancedDataGrid control expands on the functionality of the standard DataGrid control to add data visualization features to your Apache Flex application.
 AdvancedDataGridAccImpl
mx.accessibility The AdvancedDataGridAccImpl class is the accessibility class for AdvancedDataGrid.
 AdvancedDataGridBase
mx.controls.advancedDataGridClasses The AdvancedDataGridBase class is the base class for controls that display lists of items in multiple columns, such as the AdvancedDataGrid and OLAPDataGrid controls.
 AdvancedDataGridBaseEx
mx.controls The AdvancedDataGridBaseEx class is a base class of the AdvancedDataGrid control.
 AdvancedDataGridBaseSelectionData
mx.controls.advancedDataGridClasses The AdvancedDataGridBaseSelectionData class defines a data structure used by the advanced data grid classes to track selected cells in the AdvancedDataGrid control.
 AdvancedDataGridColumn
mx.controls.advancedDataGridClasses The AdvancedDataGridColumn class describes a column in an AdvancedDataGrid control.
 AdvancedDataGridColumnGroup
mx.controls.advancedDataGridClasses Use the AdvancedDataGridColumnGroup class to specify column groups for the AdvancedDataGrid control.
 AdvancedDataGridDragProxy
mx.controls.advancedDataGridClasses The AdvancedDataGridDragProxy class defines the default drag proxy used when dragging data from an AdvancedDataGrid control.
 AdvancedDataGridEvent
mx.events The AdvancedDataGridEvent class represents event objects that are specific to the AdvancedDataGrid control, such as the event that is dispatched when an editable grid item gets the focus.
 AdvancedDataGridEventReason
mx.events The AdvancedDataGridEventReason class defines constants for the values of the reason property of a AdvancedDataGridEvent object when the type property is itemEditEnd.
 AdvancedDataGridGroupItemRenderer
mx.controls.advancedDataGridClasses The AdvancedDataGridGroupItemRenderer class defines the default item renderer for the nodes of the navigation tree.
 AdvancedDataGridHeaderHorizontalSeparator
mx.skins.halo The skin for the separator between column headers in an AdvancedDataGrid control.
 AdvancedDataGridHeaderInfo
mx.controls.advancedDataGridClasses The AdvancedDataGridHeaderInfo class contains information that describes the hierarchy of the columns of the AdvancedDataGrid control.
 AdvancedDataGridHeaderRenderer
mx.controls.advancedDataGridClasses The AdvancedDataGridHeaderRenderer class defines the default header renderer for a AdvancedDataGrid control.
 AdvancedDataGridItemRenderer
mx.controls.advancedDataGridClasses The AdvancedDataGridItemRenderer class defines the default item renderer for a AdvancedDataGrid control.
 AdvancedDataGridListData
mx.controls.advancedDataGridClasses The AdvancedDataGridListData class defines the data type of the listData property implemented by drop-in item renderers or drop-in item editors for the AdvancedDataGrid control.
 AdvancedDataGridRendererDescription
mx.controls.advancedDataGridClasses The AdvancedDataGridRendererDescription class contains information that describes an item renderer for the AdvancedDataGrid control.
 AdvancedDataGridRendererProvider
mx.controls.advancedDataGridClasses An AdvancedDataGridRendererProvider instance defines the characteristics for a single item renderer used by the AdvancedDataGrid control.
 AdvancedDataGridSortItemRenderer
mx.controls.advancedDataGridClasses The AdvancedDataGridSortItemRenderer class defines the item renderer for the sort icon and text field in the column header of the AdvancedDataGrid control.
 AdvancedListBase
mx.controls.listClasses The AdvancedListBase class is the base class for controls, such as the AdvancedDataGrid and OLAPDataGrid controls, that represent lists of items that can have one or more selected items and can scroll through the items.
 AdvancedStyleClient
mx.styles A base class that can be used when implementing an object that uses the IAdvancedStyleClient interface.
 AIREvent 
mx.events The AIREvent class represents the event object passed to the event listener for several AIR-specific events dispatched by the Window and WindowedApplication components.
 Alert
mx.controls The Alert control is a pop-up dialog box that can contain a message, a title, buttons (any combination of OK, Cancel, Yes, and No) and an icon.
 Alert
spark.components 
 AlertAccImpl
mx.accessibility AlertAccImpl is a subclass of AccessibilityImplementation which implements accessibility for the Alert class.
 AlertSkin
spark.skins 
 AMFChannel
mx.messaging.channels The AMFChannel class provides the AMF support for messaging.
 Animate
spark.effects This Animate effect animates an arbitrary set of properties between values.
 AnimateColor
spark.effects The AnimateColor effect animates a change in a color property over time, interpolating between given from/to color values on a per-channel basis.
 AnimateColorInstance
spark.effects.supportClasses The AnimateColorInstance class is the instance class of the AnimateColor effect, which animates a change in color by interpolating the from/to values per color channel.
 AnimateFilter
spark.effects The AnimateFilter effect applies an mx.filters.IBitmapFilter instance to the target and allows you to animate properties of the filter between values.
 AnimateFilterInstance
spark.effects.supportClasses The AnimateFilterInstance class implements the instance class for the AnimateFilter effect.
 AnimateInstance
spark.effects.supportClasses The AnimateInstance class implements the instance class for the Animate effect.
 AnimateProperty
mx.effects The AnimateProperty effect animates a property or style of a component.
 AnimatePropertyInstance
mx.effects.effectClasses The AnimatePropertyInstance class implements the instance class for the AnimateProperty effect.
 AnimateTransform
spark.effects The AnimateTransform effect controls all transform-related animations on target objects.
 AnimateTransform3D
spark.effects The AnimateTransform3D effect extends the abilities of the AnimateTransform effect to 3D transform properties.
 AnimateTransformInstance
spark.effects.supportClasses The AnimateTransformInstance class implements the instance class for the AnimateTransform effect.
 AnimateTransitionShader
spark.effects The AnimateTransitionShader effect animates a transition between two bitmaps, one representing the start state (bitmapFrom), and the other representing the end state (bitmapTo).
 AnimateTransitionShaderInstance
spark.effects.supportClasses The AnimateTransitionShaderInstance class implements the instance class for the AnimateTransitionShader effect.
 Animation
spark.effects.animation The Animation class defines an animation that happens between the start and end values of a property over a specified period of time.
 AnimationNavigatorLayoutBase
spark.layouts.supportClasses A AnimationNavigatorLayoutBase class is a base class for navigator layouts that can animation between indices.
 AnimationTarget
spark.components.supportClasses 
 Application
mx.core Flex defines a default, or Application, container that lets you start adding content to your application without explicitly defining another container.
 Application
spark.components Flex defines a default, or Application, container that lets you start adding content to your application without explicitly defining another container.
 ApplicationBackground
mx.skins.halo The skin for application background gradient.
 ApplicationControlBar
mx.containers The ApplicationControlBar container holds components that provide global navigation and application commands For the Halo Application container.
 ApplicationDomainTarget
mx.core The ApplicationDomainTarget class defines the possible values for the applicationDomainTarget property of the RSLData class.
 ApplicationSkin
spark.skins.sparkThe default skin class for the Spark Application component.
 ApplicationTitleBarBackgroundSkin 
mx.skins.halo The skin for the TitleBar of a WindowedApplication or Window.
 ApplyElementIDOperation
flashx.textLayout.operations The ChangeElementIDOperation class encapsulates an element ID change.
 ApplyElementStyleNameOperation
flashx.textLayout.operations The ApplyElementStyleNameOperation class encapsulates a style name change.
 ApplyElementTypeNameOperation
flashx.textLayout.operations The ApplyElementTypeNameOperation class encapsulates a type name change.
 ApplyElementUserStyleOperation
flashx.textLayout.operations The ApplyElementUserStyleOperation class encapsulates a change in a style value of an element.
 ApplyFormatOperation
flashx.textLayout.operations The ApplyFormatOperation class encapsulates a style change.
 ApplyFormatToElementOperation
flashx.textLayout.operations The ApplyFormatToElementOperation class encapsulates a style change to an element.
 ApplyLinkOperation
flashx.textLayout.operations The ApplyLinkOperation class encapsulates a link creation or modification operation.
 ApplyTCYOperation
flashx.textLayout.operations The ApplyTCYOperation class encapsulates a TCY transformation.
 AreaChart
mx.charts The AreaChart control represents data as an area bounded by a line connecting the values in the data.
 AreaRenderer
mx.charts.renderers The default class used to render the area beneath the dataPoints of an AreaSeries object.
 AreaSeries
mx.charts.series Defines a data series for an AreaChart control.
 AreaSeriesItem
mx.charts.series.items Represents the information required to render an item as part of an AreaSeries.
 AreaSeriesRenderData
mx.charts.series.renderData Represents all the information needed by the AreaSeries to render.
 AreaSet
mx.charts.series A grouping set that can be used to stack AreaSeries objects in any chart.
 ArrayCollection
mx.collections The ArrayCollection class is a wrapper class that exposes an Array as a collection that can be accessed and manipulated using the methods and properties of the ICollectionView or IList interfaces.
 ArrayList
mx.collections The ArrayList class is a simple implementation of IList that uses a backing Array as the source of the data.
 ArrayList
org.apache.flex.collections The ArrayList class is a simple implementation of IList that uses a backing Array as the source of the data.
 ArrayUtil
mx.utils The ArrayUtil utility class is an all-static class with methods for working with arrays within Flex.
 ArrowDirection
spark.components Enumeration of arrow directions for use in visual components.
 ArrowDownToggleButtonSkin
spark.skinsA skin class that displays an arrow pointing down for a Spark ToggleButton component.
 ArrowRightToggleButtonSkin
spark.skinsA skin class that displays an arrow pointing right for a Spark ToggleButton component.
 AsyncListView
mx.collections The AsyncListView class is an implementation of the IList interface that handles ItemPendingErrors errors thrown by the getItemAt(), removeItemAt(), and toArray() methods.
 AsyncMessage
mx.messaging.messages AsyncMessage is the base class for all asynchronous messages.
 AsyncRequest
mx.rpc The AsyncRequest class provides an abstraction of messaging for RPC call invocation.
 AsyncResponder
mx.rpc This class provides an RPC specific implementation of mx.rpc.IResponder.
 AsyncToken
mx.rpc This class provides a place to set additional or token-level data for asynchronous RPC operations.
 Attribute
mx.messaging.management Client representation of a MBean attribute.
 AverageAggregator
mx.olap.aggregators The AverageAggregator class implements the average aggregator.
 AxisBase
mx.charts.chartClasses The AxisBase class serves as a base class for the various axis types supported in Flex.
 AxisLabel
mx.charts An AxisLabel object represents a single label on the chart axis.
 AxisLabelSet
mx.charts.chartClasses An AxisLabelSet represents the label and tick data generated by an implementation of IAxis.
 AxisRenderer
mx.charts You use the AxisRenderer class to describe the horizontal and vertical axes of a chart.
 Back
mx.effects.easing The Back class defines three easing functions to implement motion with Flex effect classes.
 BackgroundColor
flashx.textLayout.formats Defines a constant for specifying that the value of the backgroundColor property of the TextLayoutFormat class is "transparent".
 BarChart
mx.charts The BarChart control represents data as a series of horizontal bars whose length is determined by values in the data.
 BarSeries
mx.charts.series Defines a data series for a BarChart control.
 BarSeriesItem
mx.charts.series.items Represents the information required to render an item as part of a BarSeries.
 BarSeriesRenderData
mx.charts.series.renderData Represents all the information needed by the BarSeries to render.
 BarSet
mx.charts.series A grouping set that can be used to stack or cluster BarSeries objects in any chart.
 Base64Decoder
mx.utils A utility class to decode a Base64 encoded String to a ByteArray.
 Base64Encoder
mx.utils A utility class to encode a String or ByteArray as a Base64 encoded String.
 BaseDimensionFilter
mx.filters Base class for some Spark filters.
 BaseFilter
mx.filters Base class for some Spark filters.
 BaselineOffset
flashx.textLayout.formats Defines values for the firstBaselineOffset property of the TextLayoutFormat and ContainerFormattedElement classes.
 BaselineShift
flashx.textLayout.formats Defines constants for specifying subscript or superscript in the baselineShift property of the TextLayoutFormat class.
 BaseListData
mx.controls.listClasses The BaseListData class defines the data type of the listData property implemented by drop-in item renderers or drop-in item editors.
 BasicLayout
spark.layouts The BasicLayout class arranges the layout elements according to their individual settings, independent of each-other.
 BeveledActionButtonSkin
spark.skins.mobile iOS-styled ActionBar Button skin for use in the actionContent skinPart.
 BeveledBackButtonSkin
spark.skins.mobile iOS-styled ActionBar Button skin for use in the navigationContent skinPart.
 BevelFilter
spark.filters The BevelFilter class lets you add a bevel effect to display objects.
 BindingUtils
mx.binding.utils The BindingUtils class defines utility methods for performing data binding from ActionScript.
 BitmapAsset
mx.core BitmapAsset is a subclass of the flash.display.Bitmap class which represents bitmap images that you embed in a Flex application.
 BitmapFill
mx.graphics Defines a set of values used to fill an area on screen with a bitmap or other DisplayObject.
 BitmapFillMode
mx.graphics The BitmapFillMode class defines an enumeration of the resize modes that determine how a BitmapImage fills in the dimensions specified by the layout system.
 BitmapImage
spark.primitives A BitmapImage element defines a rectangular region in its parent element's coordinate space, filled with bitmap data drawn from a source file or source URL.
 BitmapScaleMode
mx.graphics The BitmapScaleMode class defines an enumeration for the scale modes that determine how a BitmapImage scales image content when fillMode is set to mx.graphics.BitmapFillMode.SCALE.
 BitmapSmoothingQuality
mx.graphics An enum of the smoothing quality modes that determine how a BitmapImage scales image content when fillMode is set to BitmapFillMode.SCALE and smooth is true.
 BitmapUtil
spark.utils This class provides bitmap-related utility functions
 BlockProgression
flashx.textLayout.formats Defines values for the blockProgression property of the TextLayouFormat class.
 Blur
mx.effects The Blur effect lets you apply a blur visual effect to a component.
 BlurFilter
spark.filters The BlurFilter class lets you apply a blur visual effect to display objects.
 BlurInstance
mx.effects.effectClasses The BlurInstance class implements the instance class for the Blur effect.
 Border
mx.skins The Border class is an abstract base class for various classes that draw borders, either rectangular or non-rectangular, around UIComponents.
 BorderColor
flashx.textLayout.formats Defines a constant for specifying that the value of the borderColor property of the TextLayoutFormat class is "transparent".
 BorderContainer
spark.components The BorderContainer class defines a set of CSS styles that control the appearance of the border and background fill of the container.
 BorderContainerSkin
spark.skins.spark The default skin class for a Spark BorderContainer component.
 BorderDataNavigator
spark.components 
 BorderDataNavigatorSkin
spark.skins The default skin class for a Spark BorderContainer component.
 BorderSkin
mx.skins.sparkThe Spark skin class for the MX Border base class.
 Bounce
mx.effects.easing The Bounce class defines three easing functions to implement bounce motion with Flex effect classes.
 Bounce
spark.effects.easing The Bounce class implements easing functionality simulating gravity pulling on and bouncing the target object.
 BoundedValue
mx.charts.chartClasses A bounded value is used to represent a datapoint that a chart element intends to render on screen.
 Box
mx.containers A Halo Box container lays out its children in a single vertical column or a single horizontal row.
 BoxDirection
mx.containers The BoxDirection class specifies constant values for the direction property of the Box container.
 BoxDivider
mx.containers.dividedBoxClasses The BoxDivider class represents the divider between children of a DividedBox container.
 BoxItemRenderer
mx.charts.renderers A simple chart itemRenderer implementation that fills a rectangular area.
 BreakElement
flashx.textLayout.elements The BreakElement class defines a line break, which provides for creating a line break in the text without creating a new paragraph.
 BreakStyle
flashx.textLayout.formats 
 BrokenImageBorderSkin
mx.skins.halo The skin for the border of a SWFLoader or Image component when the content could not be loaded.
 BrowserChangeEvent
mx.events The BrowserChangeEvent class represents event objects specific to the BrowserManager.
 BrowserManager
mx.managers The BrowserManager is a Singleton manager that acts as a proxy between the browser and the application.
 BubbleChart
mx.charts The BubbleChart control represents data with three values for each data point.
 BubbleSeries
mx.charts.series Defines a data series for a BubbleChart control.
 BubbleSeriesItem
mx.charts.series.items Represents the information required to render an item as part of a BubbleSeries.
 BubbleSeriesRenderData
mx.charts.series.renderData Represents all the information needed by the BubbleSeries to render.
 BusyCursor
mx.skins.halo Defines the appearance of the cursor that appears while an operation is taking place.
 BusyIndicator 
spark.components The BusyIndicator defines a component to display when a long-running operation is in progress.
 Button
mx.controls The Button control is a commonly used rectangular button.
 Button
spark.components The Button component is a commonly used rectangular button.
 ButtonAccImpl
mx.accessibility ButtonAccImpl is a subclass of AccessibilityImplementation which implements accessibility for the Button class.
 ButtonAsset
mx.core ButtonAsset is a subclass of the flash.display.SimpleButton class which represents button symbols that you embed in a Flex application from a SWF file produced by Flash.
 ButtonBar
mx.controls The ButtonBar control defines a horizontal or vertical group of logically related push buttons with a common look and navigation.
 ButtonBar
spark.components The ButtonBar control defines a horizontal group of logically related buttons with a common look and navigation.
 ButtonBarBase
spark.components.supportClasses The ButtonBarBase class defines the common behavior for the ButtonBar, TabBar and similar subclasses.
 ButtonBarBaseAccImpl
spark.accessibility ButtonBarBaseAccImpl is the accessibility implementation class for spark.components.supportClasses.ButtonBarBase.
 ButtonBarButton
spark.components The ButtonBarButton class defines the custom item renderer used by the ButtonBar control.
 ButtonBarButtonClassFactory
spark.skins.mobile.supportClasses Adds skinClass style support to ClassFactory.
 ButtonBarButtonSkin
mx.skins.halo The skin for all the states of the ButtonBarButtons in a ButtonBar.
 ButtonBarButtonSkinBase
spark.skins.mobile.supportClasses ButtonBarButton skin base class.
 ButtonBarFirstButtonSkin
mx.skins.sparkThe Spark skin class for the first button in the MX ButtonBar component.
 ButtonBarFirstButtonSkin
spark.skins.mobile Button skin for the first Button in a ButtonBar.
 ButtonBarFirstButtonSkin
spark.skins.sparkThe default skin class for the first button in a Spark ButtonBar component.
 ButtonBarHorizontalLayout
spark.components.supportClasses The ButtonBarHorizontalLayout class is a layout specifically designed for the Spark ButtonBar skins.
 ButtonBarLastButtonSkin
mx.skins.sparkThe Spark skin class for the last button in the MX ButtonBar component.
 ButtonBarLastButtonSkin
spark.skins.mobile Button skin for the last Button in a ButtonBar.
 ButtonBarLastButtonSkin
spark.skins.sparkThe default skin class for the last button in a Spark ButtonBar component.
 ButtonBarMiddleButtonSkin
mx.skins.sparkThe Spark skin class for the middle buttons in the MX ButtonBar component.
 ButtonBarMiddleButtonSkin
spark.skins.mobile Button skin for middle Buttons in a ButtonBar.
 ButtonBarMiddleButtonSkin
spark.skins.sparkThe default skin class for the middle buttons in a Spark ButtonBar component.
 ButtonBarSkin
spark.skins.mobile The default skin class for the Spark ButtonBar component.
 ButtonBarSkin
spark.skins.sparkThe default skin class for the Spark ButtonBar component.
 ButtonBase
spark.components.supportClasses The ButtonBase class is the base class for the all Spark button components.
 ButtonBaseAccImpl
spark.accessibility ButtonBaseAccImpl is the accessibility implementation class for spark.components.supportClasses.ButtonBase.
 ButtonLabelPlacement
mx.controls The ButtonLabelPlacement class defines the constants for the allowed values of the labelPlacement property of a Button, CheckBox, LinkButton, or RadioButton control.
 ButtonSkin
mx.skins.halo The skin for all the states of a Button.
 ButtonSkin
mx.skins.sparkThe Spark skin class for the MX Button component.
 ButtonSkin
spark.skins.mobile ActionScript-based skin for Button controls in mobile applications.
 ButtonSkin
spark.skins.sparkThe default skin class for the Spark Button component.
 ButtonSkinBase
spark.skins.mobile.supportClasses ActionScript-based skin for mobile applications.
 ByteArrayAsset
mx.core ByteArrayAsset is a subclass of the flash.utils.ByteArray class which represents an arbitrary sequence of byte data that you embed in a Flex application.
 CalendarLayoutChangeEvent
mx.events The CalendarLayoutChangeEvent class represents the event object passed to the event listener for the change event for the DateChooser and DateField controls.
 CallAction
spark.effects The CallAction effect calls the function specified by functionName property on the target object with optional arguments specified by the args property.
 CallActionInstance
spark.effects.supportClasses The CallActionInstance class implements the instance class for the CallAction effect.
 Callout
spark.components The Callout container is a SkinnablePopUpContainer that functions as a pop-up with additional owner-relative positioning options similar to PopUpAnchor.
 CalloutActionBarSkin 
spark.skins.mobile Additional skin class for the Spark ActionBar component for use with a ViewNavigator inside a Callout component.
 CalloutArrow 
spark.skins.mobile.supportClasses The arrow skin part for CalloutSkin.
 CalloutArrow
spark.skins.spark.supportClasses The arrow skin part for CalloutSkin.
 CalloutButton
spark.components The CalloutButton control is a drop down component that defines a button to open and close a Callout container.
 CalloutPosition
spark.components The CalloutPosition calss defines the enumeration of horizontal and vertical positions of the Callout component relative to the owner.
 CalloutSkin 
spark.skins.mobile The default skin class for the Spark Callout component in mobile applications.
 CalloutSkin
spark.skins.spark The default skin class for the Spark Callout component in desktop applications.
 CalloutViewNavigatorSkin 
spark.skins.mobile The ActionScript-based skin for view navigators inside a callout.
 CallResponder
mx.rpc This component helps you manage the results for asynchronous calls made from RPC based services, typically from MXML components.
 CandlestickChart
mx.charts The CandlestickChart control represents financial data as a series of candlesticks representing the high, low, opening, and closing values of a data series.
 CandlestickItemRenderer
mx.charts.renderers The default itemRenderer for a CandlestickSeries object.
 CandlestickSeries
mx.charts.series Represents financial data as a series of candlesticks representing the high, low, opening, and closing values of a data series.
 Canvas
mx.containers A Halo Canvas layout container defines a rectangular region in which you place child containers and controls.
 CarouselLayout
spark.layouts A CarouselLayout class arranges the layout elements in a sequence along an arc, with one of them at a time selected.
 CartesianCanvasValue
mx.charts.chartClasses Defines the position of objects on a data canvas.
 CartesianChart
mx.charts.chartClasses The CartesianChart class is a base class for the common chart types.
 CartesianDataCanvas
mx.charts.chartClasses This class lets you use add graphical elements such as lines, ellipses, and other shapes by using a graphics API.
 CartesianTransform
mx.charts.chartClasses The CartesianTransform object represents a set of axes that maps data values to x/y Cartesian screen coordinates and vice versa.
 CategoryAxis
mx.charts The CategoryAxis class lets charts represent data grouped by a set of discrete values along an axis.
 CellPosition
spark.components.gridClasses The CellPosition class defines a data structure used by the Spark data grid classes to represent selected cells in the control.
 CellRegion
spark.components.gridClasses The CellRegion class defines a data structure used by the Spark data grid classes to represent a rectangular region of cells in the control.
 ChangeWatcher
mx.binding.utils The ChangeWatcher class defines utility methods that you can use with bindable Flex properties.
 Channel
mx.messaging The Channel class is the base message channel class that all channels in the messaging system must extend.
 ChannelError
mx.messaging.errors This is the base class for any channel related errors.
 ChannelEvent
mx.messaging.events The ChannelEvent is used to propagate channel events within the messaging system.
 ChannelFaultEvent
mx.messaging.events The ChannelFaultEvent class is used to propagate channel fault events within the messaging system.
 ChannelSet
mx.messaging The ChannelSet is a set of Channels that are used to send messages to a target destination.
 CharacterUtil
flashx.textLayout.utils Utilities for managing and getting information about characters.
 ChartBase
mx.charts.chartClasses The ChartBase class is the link between the Flex component architecture and the DualStyleObject architecture.
 ChartElement
mx.charts.chartClasses The ChartElement class is the base class for visual chart elements.
 ChartEvent
mx.charts.events The ChartEvent class represents events that are specific to the chart control, such as when a chart is clicked.
 ChartItem
mx.charts A ChartItem represents a single item in a ChartSeries.
 ChartItemDragProxy
mx.charts.chartClasses The default drag proxy used when dragging items from a chart control.
 ChartItemEvent
mx.charts.events The ChartItemEvent class represents events that are specific to the chart components, such as when a chart item is clicked.
 ChartLabel
mx.charts.chartClasses Draws data labels on chart controls.
 ChartState
mx.charts.chartClasses Describes the current state of a chart.
 CheckBox
mx.controls The CheckBox control consists of an optional label and a small box that can contain a check mark or not.
 CheckBox
spark.components The CheckBox component consists of an optional label and a small box that can contain a check mark or not.
 CheckBoxAccImpl
mx.accessibility CheckBoxAccImpl is a subclass of AccessibilityImplementation which implements accessibility for the CheckBox class.
 CheckBoxAccImpl
spark.accessibility CheckBoxAccImpl is the accessibility implementation class for spark.components.CheckBox.
 CheckBoxIcon
mx.skins.halo The skin for all the states of the icon in a CheckBox.
 CheckBoxSkin
mx.skins.sparkThe Spark skin class for the MX CheckBox component.
 CheckBoxSkin
spark.skins.mobile ActionScript-based skin for CheckBox components in mobile applications.
 CheckBoxSkin
spark.skins.sparkThe default skin class for the Spark CheckBox component.
 ChildExistenceChangedEvent
mx.events Represents events that are dispatched when a the child of a control is created or destroyed.
 ChildItemPendingError
mx.collections.errors This error is thrown when retrieving a child item from a collection view requires an asynchronous call.
 CircleItemRenderer
mx.charts.renderers A simple chart itemRenderer implementation that fills an elliptical area.
 Circular
mx.effects.easing The Circular class defines three easing functions to implement circular motion with Flex effect classes.
 ClassFactory
mx.core A ClassFactory instance is a "factory object" which Flex uses to generate instances of another class, each with identical properties.
 ClearFloats
flashx.textLayout.formats Defines values for setting the clear property of the TextLayoutFormat class.
 ClearFormatOnElementOperation
flashx.textLayout.operations The ClearFormatOnElementOperation class encapsulates a style change to an element.
 ClearFormatOperation
flashx.textLayout.operations The ClearFormatOperation class encapsulates a way to undefine formats.
 CloseButtonSkin
spark.skins.spark.windowChromeThe default skin class for the close button in the title bar of the Spark WindowedApplication component and Spark Window component when you use Flex chrome.
 CloseEvent
mx.events The CloseEvent class represents event objects specific to popup windows, such as the Alert control.
 CollatorBase
spark.globalization.supportClasses CollatorBase is a base class for the SortingCollator and MatchingCollator classes.
 CollectionEvent
mx.events The mx.events.CollectionEvent class represents an event that is dispatched when the associated collection changes.
 CollectionEventKind
mx.events The CollectionEventKind class contains constants for the valid values of the mx.events.CollectionEvent class kind property.
 CollectionViewError
mx.collections.errors The CollectionViewError class represents general errors within a collection that are not related to specific activities such as Cursor seeking.
 ColorBurnShader
mx.graphics.shaderClasses Creates a blend shader that is equivalent to the 'Color Burn' blend mode for RGB premultiplied colors available in Adobe Creative Suite tools.
 ColorChangeEvent
spark.events 
 ColorDodgeShader
mx.graphics.shaderClasses Creates a blend shader that is equivalent to the 'Color Dodge' blend mode for RGB premultiplied colors available in Adobe Creative Suite tools.
 ColorMatrixFilter
spark.filters The ColorMatrixFilter class lets you apply a 4 x 5 matrix transformation on the RGBA color and alpha values of every pixel in the input image to produce a result with a new set of RGBA color and alpha values.
 ColorName
flashx.textLayout.formats Defines a constant for specifying that the value of the color property of the TextLayoutFormat class is "transparent".
 ColorPicker
mx.controls The ColorPicker control provides a way for a user to choose a color from a swatch list.
 ColorPicker
spark.components 
 ColorPickerAccImpl
mx.accessibility ColorPickerAccImpl is a subclass of AccessibilityImplementation which implements accessibility for the ColorPicker class.
 ColorPickerButtonSkin
spark.skins 
 ColorPickerEvent
mx.events Represents events that are specific to the ColorPicker control, such as when the user rolls the mouse over or out of a swatch in the swatch panel.
 ColorPickerSkin
mx.skins.halo The skin for all the states of a ColorPicker.
 ColorPickerSkin
mx.skins.sparkThe Spark skin class for the MX ColorPicker component.
 ColorPickerSkin
spark.skins 
 ColorPickerUtil
spark.utils 
 ColorShader
mx.graphics.shaderClasses The ColorShader class creates a blend shader that is equivalent to the 'Color' blend mode for RGB premultiplied colors available in Adobe Creative Suite tools.
 ColorUtil
mx.utils The ColorUtil class is an all-static class with methods for working with RGB colors within Flex.
 ColumnAlign
spark.layouts The ColumnAlign class defines the possible values for the columnAlign property of the TileLayout class.
 ColumnChart
mx.charts The ColumnChart control represents data as a series of vertical columns whose height is determined by values in the data.
 ColumnSeries
mx.charts.series Defines a data series for a ColumnChart control.
 ColumnSeriesItem
mx.charts.series.items Represents the information required to render an item as part of a ColumnSeries.
 ColumnSeriesRenderData
mx.charts.series.renderData Represents all the information needed by the ColumnSeries to render.
 ColumnSet
mx.charts.series ColumnSet is a grouping set that can be used to stack or cluster column series in any arbitrary chart.
 ColumnState
flashx.textLayout.container The ColumnState class calculates the sizes and locations of columns using the width of the container and the container attributes.
 ComboBase
mx.controls The ComboBase class is the base class for controls that display text in a text field and have a button that causes a drop-down list to appear where the user can choose which text to display.
 ComboBaseAccImpl
mx.accessibility ComboBaseAccImpl is a subclass of AccessibilityImplementation which implements accessibility for the ComboBase class.
 ComboBox
mx.controls The ComboBox control contains a drop-down list from which the user can select a single value.
 ComboBox
spark.components The ComboBox control is a child class of the DropDownListBase control.
 ComboBoxAccImpl
mx.accessibility ComboBoxAccImpl is a subclass of AccessibilityImplementation which implements accessibility for the ComboBox class.
 ComboBoxAccImpl
spark.accessibility ComboBoxAccImpl is the accessibility implementation class for spark.components.ComboBox.
 ComboBoxArrowSkin
mx.skins.halo The skin for all the states of the button in a ComboBox.
 ComboBoxButtonSkin
spark.skins.sparkThe default skin class for the anchor button on a Spark ComboBox component.
 ComboBoxGridItemEditor
spark.components.gridClassesThe ComboBoxGridItemEditor class defines an item renderer for use with the Spark grid controls, such as DataGrid and Grid.
 ComboBoxSkin
mx.skins.sparkThe Spark skin class for the MX ComboBox component.
 ComboBoxSkin
spark.skins.sparkThe default skin class for the Spark ComboBox component.
 ComboBoxTextInputSkin
spark.skins.sparkThe default skin class for the textInput of a Spark ComboBox component.
 CommandMessage
mx.messaging.messages The CommandMessage class provides a mechanism for sending commands to the server infrastructure, such as commands related to publish/subscribe messaging scenarios, ping operations, and cluster operations.
 ComponentDescriptor
mx.core ComponentDescriptor is the base class for the UIComponentDescriptor class, which encapsulates the information that you specified in an MXML tag for an instance of a visual component.
 CompositeEffect
mx.effects The CompositeEffect class is the parent class for the Parallel and Sequence classes, which define the <mx:Parallel> and <mx:Sequence> MXML tags.
 CompositeEffectInstance
mx.effects.effectClasses The CompositeEffectInstance class implements the instance class for the CompositeEffect class.
 CompositeOperation
flashx.textLayout.operations The CompositeOperation class encapsulates a group of transformations managed as a unit.
 CompositionAttributeRange
flash.text.ime The CompositionAttributeRange class represents a range of composition attributes for use with IME events.
 CompositionCompleteEvent
flashx.textLayout.events A TextFlow instance dispatches this event after a compose operation completes.
 CompoundTransform
mx.geom A CompoundTransform represents a 2D or 3D matrix transform.
 Concurrency
mx.rpc.mxml Concurrency is set via MXML based access to RPC services to indicate how to handle multiple calls to the same service.
 ConfigMap
mx.messaging.config The ConfigMap class provides a mechanism to store the properties returned by the server with the ordering of the properties maintained.
 Configuration
flashx.textLayout.elements The Configuration class is a primary point of integration between the Text Layout Framework and an application.
 ConstraintColumn
mx.containers.utilityClasses The ConstraintColumn class partitions an absolutely positioned container in the vertical plane.
 ConstraintError
mx.containers.errors This error is thrown when a constraint expression is not configured properly; for example, if the GridColumn reference is invalid.
 ConstraintLayout
spark.layouts The ConstraintLayout class arranges the layout elements based on their individual settings and a set of constraint regions defined by constraint columns and constraint rows.
 ConstraintRow
mx.containers.utilityClasses ConstraintRow class partitions an absolutely positioned container in the horizontal plane.
 Consumer
mx.messaging A Consumer subscribes to a destination to receive messages.
 Container
mx.core The Container class is an abstract base class for components that controls the layout characteristics of child components.
 ContainerBorderSkin
mx.skins.spark Defines the border and background for the MX Container class's Spark skin.
 ContainerController
flashx.textLayout.container The ContainerController class defines the relationship between a TextFlow object and a container.
 ContainerCreationPolicy
mx.core The ContainerCreationPolicy class defines the constant values for the creationPolicy property of the Container class.
 ContainerDestructionPolicy 
spark.core The ContainerCreationPolicy class defines the constant values for the destructionPolicy property of spark view classes.
 ContainerFormattedElement
flashx.textLayout.elements ContainerFormattedElement is the root class for all container-level block elements, such as DivElement and TextFlow objects.
 ContainerLayout
mx.core The ContainerLayout class defines the constant values for the layout property of container classes.
 ContentBackgroundAppearance 
spark.components The ContentBackgroundAppearance class defines the constants for the allowed values of the contentBackgroundAppearance style of Callout.
 ContentCache
spark.core Provides a caching and queuing image content loader suitable for using a shared image cache for the BitmapImage and spark Image components.
 ContentRequest
spark.core Represents an IContentLoader content request instance returned from IContentLoader's load() method.
 ContextualClassFactory
mx.core A class factory that provides a system manager as a context of where the class should be created.
 ControlBar
mx.containers The ControlBar container lets you place controls at the bottom of a Halo Panel or Halo TitleWindow container.
 ConversionType
flashx.textLayout.conversion Values for the format of exported text.
 ConverterBase
flashx.textLayout.conversion This is a base class for importers as well as exporters.
 ConvolutionFilter
spark.filters The ConvolutionFilter class applies a matrix convolution filter effect.
 CopyOperation
flashx.textLayout.operations The CopyOperation class encapsulates a copy operation.
 CountAggregator
mx.olap.aggregators The CountAggregator class implements the count aggregator.
 CoverflowLayout
spark.layouts A CoverflowLayout class arranges the layout elements in a linear along with unselected items having a different z and rotation.
 CreateDivOperation
flashx.textLayout.operations The CreateDivOperation class encapsulates creating DivElement
 CreateListOperation
flashx.textLayout.operations The CreateListOperation class encapsulates creating list
 CreateSubParagraphGroupOperation
flashx.textLayout.operations The CreateSPGEOperation class encapsulates creating a SubPargraphGroupElement
 CreditCardValidator
mx.validators The CreditCardValidator class validates that a credit card number is the correct length, has the correct prefix, and passes the Luhn mod10 algorithm for the specified card type.
 CreditCardValidatorCardType
mx.validators The CreditCardValidatorCardType class defines value constants for specifying the type of credit card to validate.
 CrossFade
spark.effects The CrossFade effect performs a bitmap transition effect by running a crossfade between the first and second bitmaps.
 CrossFadeViewTransition 
spark.transitions The CrossFadeViewTransition class serves as a simple cross fade transition for views.
 CrossItemRenderer
mx.charts.renderers A simple chart itemRenderer implementation that fills a cross in its assigned area.
 CSSCondition
mx.styles Represents a condition for a CSSSelector which is used to match a subset of components based on a particular property.
 CSSConditionKind
mx.styles An enumeration of the kinds of CSSCondition.
 CSSDimension 
mx.styles Represents a dimension with an optional unit, to be used in css media queries.
 CSSOSVersion
mx.styles Support class for MediaQueryParser to store and compare versions such as X.Y.Z Its mainly used in os-version media selector.
 CSSSelector
mx.styles Represents a selector node in a potential chain of selectors used to match CSS style declarations to components.
 CSSStyleDeclaration
mx.styles The CSSStyleDeclaration class represents a set of CSS style rules.
 CubeEvent
mx.events Event class used by OLAPCube to indicate its status.
 Cubic
mx.effects.easing The Cubic class defines three easing functions to implement motion with Flex effect classes.
 CuePointEvent
mx.events The CuePointEvent class represents the event object passed to the event listener for cue point events dispatched by the VideoDisplay control.
 CuePointManager
mx.controls.videoClasses The CuePointManager class lets you use ActionScript code to manage the cue points associated with the VideoDisplay control.
 CurrencyFormatter
mx.formatters The CurrencyFormatter class formats a valid number as a currency value.
 CurrencyFormatter
spark.formatters The CurrencyFormatter class provides locale-sensitive formatting and parsing of currency values.
 CurrencyValidator
mx.validators The CurrencyValidator class ensures that a String represents a valid currency expression.
 CurrencyValidator
spark.validators The CurrencyValidator class ensures that a String represents a valid currency amount according to the conventions of a locale.
 CurrencyValidatorAlignSymbol
mx.validators The CurrencyValidatorAlignSymbol class defines value constants for specifying currency symbol alignment.
 CursorBookmark
mx.collections Encapsulates the positional aspects of a cursor in an ICollectionView.
 CursorError
mx.collections.errors This error is thrown by a collection Cursor.
 CursorManager
mx.managers The CursorManager class controls a prioritized list of cursors, where the cursor with the highest priority is currently visible.
 CursorManagerPriority
mx.managers The CursorManagerPriority class defines the constant values for the priority argument to the CursorManager.setCursor() method.
 CutOperation
flashx.textLayout.operations The CutOperation class encapsulates a cut operation.
 DamageEvent
flashx.textLayout.events A TextFlow instance dispatches this each time it is marked as damaged.
 DataAccordion
spark.components An Spark DataAccordion navigator displays a list of items, but only one of them at a time is fully visible.
 DataAccordionSkin
spark.skinsThe default skin class for a Spark DataAccordion container.
 DataDescription
mx.charts.chartClasses The DataDescription structure is used by ChartElements to describe the characteristics of the data they represent to Axis objects that auto-generate values from the data represented in the chart.
 DataGrid
mx.controls The DataGrid control is like a List except that it can show more than one column of data making it suited for showing objects with multiple properties.
 DataGrid
spark.components The DataGrid displays a row of column headings above a scrollable grid.
 DataGridAccImpl
mx.accessibility DataGridAccImpl is a subclass of AccessibilityImplementation which implements accessibility for the DataGrid class.
 DataGridAccImpl
spark.accessibility This is the accessibility implementation class for spark.components.DataGrid.
 DataGridBase
mx.controls.dataGridClasses The DataGridBase class is the base class for controls that display lists of items in multiple columns.
 DataGridColumn
mx.controls.dataGridClasses The DataGridColumn class describes a column in a DataGrid control.
 DataGridColumnDropIndicator
mx.skins.halo The skin for the column drop indicator in a DataGrid.
 DataGridColumnResizeSkin
mx.skins.halo The skin for the column resizer in a DataGrid.
 DataGridDragProxy
mx.controls.dataGridClasses The DataGridDragProxy class defines the default drag proxy used when dragging data from a DataGrid control.
 DataGridDragProxy
spark.components.gridClasses The DataGridDragProxy class defines the default drag proxy used when dragging data from a DataGrid control.
 DataGridEditor
spark.components.gridClasses The DataGridEditor contains all the logic and event handling needed to manage the life cycle of an item editor.
 DataGridEvent
mx.events The DataGridEvent class represents event objects that are specific to the DataGrid control, such as the event that is dispatched when an editable grid item gets the focus.
 DataGridEventReason
mx.events The DataGridEventReason class defines constants for the values of the reason property of a DataGridEvent object when the type property is itemEditEnd.
 DataGridHeader
mx.controls.dataGridClasses The DataGridHeader class defines the default header renderer for a DataGrid control.
 DataGridHeaderBackgroundSkin
mx.skins.halo The skin for the background of the column headers in a DataGrid control.
 DataGridHeaderBackgroundSkin
mx.skins.sparkThe Spark skin class for the header background of the MX DataGrid component.
 DataGridHeaderBase
mx.controls.dataGridClasses The DataGridHeaderBase class defines the base class for the DataGridHeader class, the class that defines the item renderer for the DataGrid control.
 DataGridHeaderSeparator
mx.skins.halo The skin for the separator between column headers in a DataGrid.
 DataGridHeaderSeparatorSkin
mx.skins.sparkThe Spark skin class for the separator of the MX DataGrid component.
 DataGridItemRenderer
mx.controls.dataGridClasses The DataGridItemRenderer class defines the default item renderer for a DataGrid control.
 DataGridListData
mx.controls.dataGridClasses The DataGridListData class defines the data type of the listData property that is implemented by drop-in item renderers or drop-in item editors for the DataGrid control.
 DataGridLockedRowContentHolder
mx.controls.dataGridClasses The DataGridLockedRowContentHolder class defines a container in a DataGrid control of all of the control's item renderers and item editors.
 DataGridSkin
spark.skins.sparkThe default skin class for a Spark DataGrid component.
 DataGridSortArrow
mx.skins.halo The skin for the sort arrow in a column header in a DataGrid.
 DataGridSortArrow
mx.skins.spark The skin for the sort arrow in a column header in an MX DataGrid.
 DataGroup
spark.components The DataGroup class is the base container class for data items.
 DataItem
spark.utils The DataItem class represents a dynamic object with bindable properties.
 DataNavigator
spark.components The SkinnableDataContainer class is the base container class for data items.
 DataNavigatorGroup
spark.components The DataNavigatorGroup class is the base control class for navigating data items.
 DataNavigatorSkin
spark.skinsThe default skin class for a Spark DataNavigator control.
 DataRenderer
spark.components The DataRenderer class is the base class for data components in Spark.
 DataTip
mx.charts.chartClasses The DataTip control provides information about a data point to chart users.
 DataTransform
mx.charts.chartClasses The DataTransform object represents a portion of a chart that contains glyphs and can transform values to screen coordinates and vice versa.
 DateBase
mx.formatters The DateBase class contains the localized string information used by the mx.formatters.DateFormatter class and the parsing function that renders the pattern.
 DateChooser
mx.controls The DateChooser control displays the name of a month, the year, and a grid of the days of the month, with columns labeled for the day of the week.
 DateChooserAccImpl
mx.accessibility DateChooserAccImpl is a subclass of AccessibilityImplementation which implements accessibility for the DateChooser class.
 DateChooserEvent
mx.events The DateChooserEvent class represents the event object passed to the event listener for the scroll event for the DateChooser and DateField controls.
 DateChooserEventDetail
mx.events Constants that define the values of the detail property of a DateChooserEvent object.
 DateChooserIndicator
mx.skins.halo The skins of the DateChooser's indicators for displaying today, rollover and selected dates.
 DateChooserMonthArrowSkin
mx.skins.halo The skin for all the states of the next-month and previous-month buttons in a DateChooser.
 DateChooserNextMonthSkin
mx.skins.sparkThe Spark skin class for the next month arrow of the MX DateChooser component.
 DateChooserNextYearSkin
mx.skins.sparkThe Spark skin class for the next year arrow of an MX DateChooser component.
 DateChooserPrevMonthSkin
mx.skins.sparkThe Spark skin class for the previous month arrow of an MX DateChooser component.
 DateChooserPrevYearSkin
mx.skins.sparkThe Spark skin class for the previous year arrow of an MX DateChooser component.
 DateChooserRollOverIndicatorSkin
mx.skins.sparkThe Spark skin class for the rollover indicator of an MX DateChooser component.
 DateChooserSelectionIndicatorSkin
mx.skins.sparkThe Spark skin class for the selection indicator of an MX DateChooser component.
 DateChooserTodayIndicatorSkin
mx.skins.sparkThe Spark skin class for the current day indicator in an MX DateChooser component.
 DateChooserYearArrowSkin
mx.skins.halo The skin for all the states of the next-year and previous-year buttons in a DateChooser.
 DateField
mx.controls The DateField control is a text field that shows the date with a calendar icon on its right side.
 DateFieldAccImpl
mx.accessibility DateFieldAccImpl is a subclass of AccessibilityImplementation which implements accessibility for the DateField class.
 DateFormatter
mx.formatters The DateFormatter class uses a format String to return a formatted date and time String from an input String or a Date object.
 DateRangeUtilities
mx.charts.chartClasses A set of disabled date range utilities used by DateTimeAxis
 DateSelectorDisplayMode 
spark.components.calendarClasses The DateSelectorMode class defines the valid constant values for the displayMode property of the Spark DateSpinner control.
 DateSpinner 
spark.components The DateSpinner control presents an interface for picking a particular date or time.
 DateSpinnerItemRenderer 
spark.components.calendarClasses The DateSpinnerItemRenderer class defines the default item renderer for a DateSpinner control in the mobile theme.
 DateSpinnerSkin 
spark.skins.mobile ActionScript-based skin for the DateSpinner in mobile applications.
 DateTimeAxis
mx.charts The DateTimeAxis class maps time values evenly between a minimum and maximum value along a chart axis.
 DateTimeFormatter
spark.formatters The DateTimeFormatter class provides locale-sensitve formatting for a Date object.
 DateValidator
mx.validators The DateValidator class validates that a String, Date, or Object contains a proper date and matches a specified format.
 DefaultBeveledActionButtonSkin 
spark.skins.mobile Emphasized button uses accentColor instead of chromeColor.
 DefaultBeveledBackButtonSkin 
spark.skins.mobile Emphasized button uses accentColor instead of chromeColor.
 DefaultButtonSkin
mx.skins.sparkThe Spark skin class for the MX default button.
 DefaultButtonSkin
spark.skins.mobile Emphasized button uses accentColor instead of chromeColor.
 DefaultButtonSkin
spark.skins.sparkThe default skin class for a Spark DefaultButton component.
 DefaultComplexItemRenderer
spark.skins.sparkThe Spark DefaultComplexItemRenderer class is an item renderer class that displays a Flex component in a Group container.
 DefaultDataDescriptor
mx.controls.treeClasses The DefaultDataDescriptor class provides a default implementation for accessing and manipulating data for use in controls such as Tree and Menu.
 DefaultDragImage
mx.skins.halo The default drag proxy image for a drag and drop operation.
 DefaultGridHeaderRenderer
spark.skins.sparkThe DefaultGridHeaderRenderer class defines the default header renderer for the columns of a Spark DataGrid control.
 DefaultGridItemEditor
spark.components.gridClassesThe DefaultGridItemEditor class defines the default item renderer used by the Spark grid controls, such as DataGrid and Grid.
 DefaultGridItemRenderer
spark.skins.spark The DefaultGridItemRenderer class defines simple and efficient item renderer that displays a single text label.
 DefaultItemRenderer
spark.skins.spark The DefaultItemRenderer class defines the default item renderer for a List control.
 DefaultListEffect
mx.effectsThe DefaultListEffect class defines the default effect applied to the item renderers of a List control when the data in the data provider changes.
 DefaultSummaryCalculator
mx.collections The DefaultSummaryCalculator class provides summary calculation logic for SUM, MIN, MAX, AVG, and COUNT operations.
 DefaultTileListEffect
mx.effectsThe DefaultTileListEffect class defines the default effect applied to the item renderers of a TileList control when the data in the data provider changes.
 DefaultTransparentActionButtonSkin 
spark.skins.mobile Emphasized button uses accentColor instead of chromeColor.
 DefaultTransparentNavigationButtonSkin 
spark.skins.mobile Emphasized button uses accentColor instead of chromeColor.
 DeferredCreationPolicy
spark.containers.supportClasses The DeferredCreationPolicy class defines the constant values for the creationPolicy property of the DeferedGroup class.
 DeferredGroup
spark.containers The DeferredGroup class enables deferred instatiation of child elements via is creationPolicy property.
 DeferredInstanceFromClass
mx.core A deferred instance factory that creates and returns an instance of a specified class.
 DeferredInstanceFromFunction
mx.core A deferred instance factory that uses a generator function to create an instance of the required object.
 DeleteTextOperation
flashx.textLayout.operations The DeleteTextOperation class encapsulates the deletion of a range of text.
 DesignLayer
mx.core The DesignLayer class represents a visibility group that can be associated with one or more IVisualElement instances at runtime.
 DiamondItemRenderer
mx.charts.renderers A simple chart itemRenderer implementation that fills a diamond in its assigned area.
 Direction
flashx.textLayout.formats Defines values for setting the direction property of the TextLayoutFormat class.
 DisplacementMapFilter
spark.filters The DisplacementMapFilter class uses the pixel values from the specified BitmapData object (called the displacement map image) to perform a displacement of an object.
 DisplayLayer
spark.components.supportClasses A DisplayLayer class maintains an ordered list of DisplayObjects sorted on depth.
 DisplayObjectSharingMode
spark.core The DisplayObjectSharingMode class defines the possible values for the displayObjectSharingMode property of the IGraphicElement class.
 DisplayUtil
mx.utils The DisplayUtil utility class is an all-static class with utility methods related to DisplayObjects.
 Dissolve
mx.effects Animate the component from transparent to opaque, or from opaque to transparent.
 DissolveInstance
mx.effects.effectClasses The DissolveInstance class implements the instance class for the Dissolve effect.
 DivElement
flashx.textLayout.elements The DivElement class defines an element for grouping paragraphs (ParagraphElement objects).
 DividedBox
mx.containers A DividedBox container measures and lays out its children horizontally or vertically in exactly the same way as a Box container, but it inserts draggable dividers in the gaps between the children.
 DividedGroup
spark.containers 
 Divider
spark.containers 
 DividerEvent
mx.events Represents events that are dispatched when a divider has been pressed, dragged or released.
 DownloadProgressBar
mx.preloaders The DownloadProgressBar class displays download progress.
 DPIClassification
mx.core An enum of the device screen density classess.
 DragEvent
mx.events The DragEvent class represents event objects that are dispatched as part of a drag-and-drop operation.
 DragManager
mx.managers The DragManager class manages drag and drop operations, which let you move data from one place to another in a Flex application.
 DragSource
mx.core The DragSource class contains the data being dragged.
 DropDownController
spark.components.supportClasses The DropDownController class handles the mouse, keyboard, and focus interactions for an anchor button and its associated drop down.
 DropdownEvent
mx.events The DropdownEvent class represents the event object passed to the event listener for the open and close events.
 DropDownEvent
spark.events The DropDownEvent class represents the event object passed to the event listener for the open and close events.
 DropDownList
spark.components The DropDownList control contains a drop-down list from which the user can select a single value.
 DropDownListBase
spark.components.supportClasses The DropDownListBase control contains a drop-down list from which the user can select a single value.
 DropDownListBaseAccImpl
spark.accessibility DropDownListAccImpl is the accessibility implementation class for spark.components.supportClasses.DropDownListBase.
 DropDownListButtonSkin
spark.skins.sparkThe default skin class for the anchor button on a Spark DropDownList component.
 DropDownListSkin
spark.skins.sparkThe default skin class for the Spark DropDownList component.
 DropLocation
spark.layouts.supportClasses The DropLocation class contains information describing the drop location for the dragged data in a drag-and-drop operation.
 DropShadowFilter
spark.filters The DropShadowFilter class lets you add a drop shadow to display objects.
 DualStyleObject
mx.charts.chartClasses The DualStyleObject class serves as a base class for components that have a need to assign class selectors outside of the client developer's control.
 DynamicEvent
mx.events This subclass of Event is dynamic, meaning that you can set arbitrary event properties on its instances at runtime.
 DynamicStreamingVideoItem
spark.components.mediaClasses The DynamicStreamingVideoItem class represents a video stream on the server plus a bitrate for that stream.
 DynamicStreamingVideoSource
spark.components.mediaClasses The DynamicStreamingVideoSource class represents a streaming video source and can be used for streaming pre-recorded video or live streaming video.
 EaseInOutBase
spark.effects.easing The EaseInOutBase class is the base class that provide easing capability.
 EasingFraction
spark.effects.easing The EasingFraction class defines constants for the easeInFraction property of the EaseInOutBase class.
 EdgeMetrics
mx.core The EdgeMetrics class specifies the thickness, in pixels, of the four edge regions around a visual component.
 EditableComboBoxSkin
mx.skins.sparkThe Spark skin class for the editable MX ComboBox component.
 EditingMode
flashx.textLayout.edit The EditingMode class defines constants used with EditManager class to represent the read, select, and edit permissions of a document.
 EditManager
flashx.textLayout.edit The EditManager class manages editing changes to a TextFlow.
 Effect
mx.effects The Effect class is an abstract base class that defines the basic functionality of all Flex effects.
 EffectEvent
mx.events Represents event objects that are specific to Flex effects.
 EffectInstance
mx.effects The EffectInstance class represents an instance of an effect playing on a target.
 EffectManager
mx.effects The EffectManager class listens for events, such as the show and move events, dispatched by objects in a Flex application.
 EffectTargetFilter
mx.effects The EffectTargetFilter class defines a custom filter that is executed by each transition effect on each target of the effect.
 Elastic
mx.effects.easing The Elastc class defines three easing functions to implement motion with Flex effect classes, where the motion is defined by an exponentially decaying sine wave.
 Elastic
spark.effects.easing The Elastic class implements easing functionality where the target object movement is defined by an exponentially decaying sine wave.
 ElementExistenceEvent
spark.events The ElementExistenceEvent class represents events that are dispatched when an element of a Group is created or destroyed.
 ElementRange
flashx.textLayout.edit The ElementRange class represents the range of objects selected within a text flow.
 Ellipse
spark.primitives The Ellipse class is a filled graphic element that draws an ellipse.
 EmailValidator
mx.validators The EmailValidator class validates that a String has a single @ sign, a period in the domain name and that the top-level domain suffix has two, three, four, or six characters.
 ErrorMessage
mx.messaging.messages The ErrorMessage class is used to report errors within the messaging system.
 ErrorSkin
spark.skins.spark The ErrorSkin class defines the error skin for Spark components.
 EventListenerRequest
mx.events Request sent from one SystemManager to a SystemManager in another application through their bridge to add or remove a listener to a specified event on your behalf.
 EventPriority
mx.core The EventPriority class defines constant values for the priority argument of the addEventListener() method of EventDispatcher.
 ExclusionShader
mx.graphics.shaderClasses Creates a blend shader that is equivalent to the 'Exclusion' blend mode for RGB premultiplied colors available in Adobe Creative Suite tools.
 Exponential
mx.effects.easing The Exponential class defines three easing functions to implement motion with Flex effect classes, where the motion is defined by an exponentially decaying sine wave.
 Fade
mx.effects The Fade effect animates the alpha property of a component, either from transparent to opaque, or from opaque to transparent.
 Fade
spark.effects The Fade effect animates the alpha property of a component.
 FadeInstance
mx.effects.effectClasses The FadeInstance class implements the instance class for the Fade effect.
 FadeInstance
spark.effects.supportClasses The FadeInstance class implements the instance class for the Fade effect.
 Fault
mx.rpc The Fault class represents a fault in a remote procedure call (RPC) service invocation.
 FaultEvent
mx.rpc.events This event is dispatched when an RPC call has a fault.
 FileEvent 
mx.events The FileEvent class represents event objects that are specific to the FileSystemList, FileSystemDataGrid, FileSystemTree and FileSystemComboBox controls.
 FileSystemComboBox 
mx.controls The FileSystemComboBox control defines a combo box control for navigating up the chain of ancestor directories from a specified directory in a file system.
 FileSystemDataGrid 
mx.controls The FileSystemDataGrid control lets you display the contents of a single file system directory in a data grid format.
 FileSystemEnumerationMode 
mx.controls The FileSystemEnumerationMode class defines the constant values for the enumerationMode property of the FileSystemList, FileSystemDataGrid, and FileSystemTree classes.
 FileSystemHistoryButton 
mx.controls The FileSystemHistoryButton control defines a single control with two buttons: a main button on the left and a secondary button on the right.
 FileSystemList 
mx.controls The FileSystemList control lets you display the contents of a single file system directory, in a list format.
 FileSystemSizeDisplayMode 
mx.controls The FileSystemSizeDisplayMode class defines the constant values for the sizeDisplayMode property of the FileSystemDataGrid class.
 FileSystemTree 
mx.controls The FileSystemTree control displays the contents of a file system directory as a tree.
 FilledElement
spark.primitives.supportClasses The FilledElement class is the base class for graphics elements that contain a stroke and a fill.
 FlexBitmap
mx.core FlexBitmap is a subclass of the Player's Bitmap class.
 FlexClient
mx.messaging Singleton class that stores the global Id for this Player instance that is server assigned when the client makes its initial connection to the server.
 FlexEvent
mx.events The FlexEvent class represents the event object passed to the event listener for many Flex events.
 FlexGlobals
mx.core A class that contains variables that are global to all applications within the same ApplicationDomain.
 FlexHTMLLoader 
mx.core FlexHTMLLoader is a subclass of the Player's HTMLLoader class used by the Flex HTML control.
 FlexLoader
mx.core FlexLoader is a subclass of the Player's Loader class.
 FlexMouseEvent
mx.events The FlexMouseEvent class represents the event object passed to the event listener for Flex-specific mouse activity.
 FlexMovieClip
mx.core FlexMovieClip is a subclass of the Player's MovieClip class.
 FlexNativeMenu 
mx.controls The FlexNativeMenu component provides a wrapper for AIR's NativeMenu class.
 FlexNativeMenuEvent 
mx.events The FlexNativeMenuEvent class represents events that are associated with menu activities in FlexNativeMenu.
 FlexNativeWindowBoundsEvent 
mx.events The FlexNativeWindowBoundsEvent is dispatched when the size or location changes for the NativeWindow that underlies a Window or WindowedApplication component.
 FlexPrintJob
mx.printing The FlexPrintJob class is a wrapper for the flash.printing.PrintJob class.
 FlexPrintJobScaleType
mx.printing Values for the scaleType property of the FlexPrintJob.addObject() method parameter.
 FlexShape
mx.core FlexShape is a subclass of the Player's Shape class.
 FlexSimpleButton
mx.core FlexSimpleButton is a subclass of the Player's SimpleButton class.
 FlexSprite
mx.core FlexSprite is a subclass of the Player's Sprite class and the superclass of UIComponent.
 FlexTextField
mx.core FlexTextField is a subclass of the Player's TextField class and the superclass of UITextField.
 FlexVersion
mx.core This class controls the backward-compatibility of the framework.
 FlipViewTransition 
spark.transitions The FlipViewTransition class performs a simple flip transition for views.
 Float
flashx.textLayout.formats Defines values for the float property of the InlineGraphicElement class.
 FlowComposerBase
flashx.textLayout.compose The FlowComposerBase class is the base class for Text Layout Framework flow composer classes, which control the composition of text lines in ContainerController objects.
 FlowDamageType
flashx.textLayout.compose The FlowDamageType class is an enumeration class that defines types of damage for damage methods and events.
 FlowElement
flashx.textLayout.elements The text in a flow is stored in tree form with the elements of the tree representing logical divisions within the text.
 FlowElementMouseEvent
flashx.textLayout.events A link element dispatches this event when it detects mouse activity.
 FlowElementOperation
flashx.textLayout.operations The FlowElementOperation class is the base class for operations that transform a FlowElement.
 FlowGroupElement
flashx.textLayout.elements The FlowGroupElement class is the base class for FlowElement objects that can have an array of children.
 FlowLeafElement
flashx.textLayout.elements Base class for FlowElements that appear at the lowest level of the flow hierarchy.
 FlowOperation
flashx.textLayout.operations The FlowOperation class is the base class for all Text Layout Framework operations.
 FlowOperationEvent
flashx.textLayout.events A TextFlow instance dispatches this event just before an operation commences and again just after an operation completes.
 FlowTextOperation
flashx.textLayout.operations The FlowTextOperation is the base class for operations that transform a range of text.
 FocusManager
mx.managers The FocusManager class manages the focus on components in response to mouse activity or keyboard activity (Tab key).
 FocusRequestDirection
mx.events The FocusDirection class defines the constant values for the direction focus may be moved in.
 FocusSkin
spark.skins.spark Defines the "glow" around Spark components when the component has focus.
 FontAsset
mx.core FontAsset is a subclass of the flash.text.Font class which represents fonts that you embed in a Flex application.
 Form
mx.containers The Form container lets you control the layout of a form, mark form fields as required or optional, handle error messages, and bind your form data to the Flex data model to perform data checking and validation.
 Form
spark.components The Spark Form container lets you control the layout of a form, mark form fields as required or optional, handle error messages, and bind your form data to the Flex data model to perform data checking and validation.
 FormatDescriptor
flashx.textLayout.conversion Contains information about a format.
 Formatter
mx.formatters The Formatter class is the base class for all data formatters.
 FormatValue
flashx.textLayout.formats Defines values for specifying that a formatting property is to inherit its parent's value or have it's value generated automatically.
 FormHeading
mx.containers The FormHeading container is used to display a heading for a group of controls inside a Form container.
 FormHeading
spark.components The Spark FormHeading container displays a heading for a group of controls inside a Spark Form container.
 FormHeadingSkin
spark.skins.sparkThe default skin class for the Spark FormHeading component.
 FormItem
mx.containers The FormItem container defines a label and one or more children arranged horizontally or vertically.
 FormItem
spark.components The FormItem container defines the following in a Spark From: A single label. A sequence label. One or more child controls or containers. Help content that provides a description of the form item or instructions for filling it in. Required indicator to indicate if a form item has to be filled Children can be controls or other containers.
 FormItemDirection
mx.containers The FormItemDirection class defines the constant values for the direction property of the FormItem class.
 FormItemLabel
mx.controls The FormItem container uses a FormItemLabel object to display the label portion of the FormItem container.
 FormItemLayout
spark.layouts The FormItemLayout is used by FormItems to provide a constraint based layout.
 FormItemSkin
spark.skins.sparkThe default skin class for the Spark FormItem component.
 FormLayout
spark.layouts The FormLayout class defines the default layout for Spark Form skins.
 FormSkin
spark.skins.sparkThe default skin class for a Spark Form container.
 FTEAdvancedDataGridItemRenderer
mx.controls.advancedDataGridClasses The FTEAdvancedDataGridItemRenderer class defines the default item renderer for an AdvancedDataGrid control used with FTEText.
 FTEDataGridItemRenderer
mx.controls.dataGridClasses The FTEDataGridItemRenderer class defines the default item renderer for a DataGrid control used with FTEText.
 FTETextField
mx.core FTETextField is a Sprite which displays text by using the new Flash Text Engine to implement the old TextField API.
 FullScreenButtonSkin
spark.skins.spark.mediaClasses.fullScreenThe default skin class for the fullScreen button of a Spark VideoPlayer component while in one of the fullScreen skin states.
 FullScreenButtonSkin
spark.skins.spark.mediaClasses.normalThe default skin class for the fullScreen button of a Spark VideoPlayer component in the normal skin state.
 GlobalizationBase
spark.globalization.supportClasses This is a base class used for wrapper classes that make use of the flash.globalization classes for language and region specific formatting of dates, times, number, and currency amounts, string comparison and case conversion.
 GlobalizationUtils
spark.validators.supportClasses GlobalizationUtils is a class containing Unicode related functionality not supported directly in Flex or ActionScript.
 GlobalizationValidatorBase
spark.validators.supportClasses The GlobalizationValidatorBase class is the base class for all Spark validators.
 GlobalSettings
flashx.textLayout.elements Configuration that applies to all TextFlow objects.
 Glow
mx.effects The Glow effect lets you apply a visual glow effect to a component.
 GlowFilter
spark.filters The GlowFilter class lets you apply a glow effect to display objects.
 GlowInstance
mx.effects.effectClasses The GlowInstance class implements the instance class for the Glow effect.
 GradientBase
mx.graphics The GradientBase class is the base class for LinearGradient, LinearGradientStroke, and RadialGradient.
 GradientBevelFilter
spark.filters The GradientBevelFilter class lets you apply a gradient bevel effect to display objects.
 GradientEntry
mx.graphics The GradientEntry class defines the objects that control a transition as part of a gradient fill.
 GradientFilter
spark.filters The base class for filters that provide gradient visual effects.
 GradientGlowFilter
spark.filters The GradientGlowFilter class lets you apply a gradient glow effect to display objects.
 GradientStroke
mx.graphics The GradientStroke class lets you specify a gradient filled stroke.
 Graphic
spark.primitives The Graphic control displays a set of graphic drawing commands.
 GraphicElement
spark.primitives.supportClasses A base class for defining individual graphic elements.
 GraphicsUtil
mx.utils The Graphics class is an all-static class with utility methods related to the Graphics class.
 GraphicsUtilities
mx.charts.chartClasses A set of internal graphics rendering utilities used by the various chart classes.
 Grid
mx.containers A Grid container lets you arrange children as rows and columns of cells, similar to an HTML table.
 Grid
spark.components The Grid control displays a list of data items called its data provider in a scrollable table or "grid", one item per row.
 GridCaretEvent
spark.events The GridCaretEvent class represents events that are dispatched when the caret changes in a Spark DataGrid control as the result of user interaction.
 GridColumn
spark.components.gridClasses The GridColumn class defines a column of a Spark grid control, such as the Spark DataGrid or Grid control.
 GridColumnHeaderGroup
spark.components The GridColumnHeaderGroup class displays a row of column headers and separators aligned with the grid's layout.
 GridColumnHeaderView
spark.components.gridClasses This class is internal to the DataGrid implementation.
 GridDoubleClickMode
spark.components.gridClasses The GridDoubleClickMode class defines the valid constant values for the doubleClickMode property of the Spark DataGrid and Grid controls.
 GridEvent
spark.events The GridEvent class extends the MouseEvent class to includes additional grid specific information based on the event's location relative to a grid cell.
 GridItem
mx.containers The GridItem container defines a grid cell in GridRow container.
 GridItemEditor
spark.components.gridClasses The GridItemEditor class defines the base class for custom item editors for the Spark grid controls, such as DataGrid and Grid.
 GridItemEditorActivationMouseEvent
spark.components.gridClasses The EditorActivationMouseEvent class defines the possible values for the the kinds of mouse events that cause an editor to be opened on a Spark DataGrid component.
 GridItemEditorEvent
spark.events The GridItemEditorEvent class represents events that are dispatched over the life cycle of an item editor.
 GridItemRenderer
spark.components.gridClasses The GridItemRenderer class defines the base class for custom item renderers for the Spark grid controls, such as DataGrid and Grid.
 GridLayer
spark.components.gridClasses The GridLayer class defines a container used for the layers of the Grid control's visual elements.
 GridLines
mx.charts The GridLines class draws grid lines inside the data area of the chart.
 GridRow
mx.containers The GridRow container defines a row in a Grid container, and contains GridCell containers.
 GridSelectionEvent
spark.events The GridSelectionEvent class represents events that are dispatched when the selection changes in a Spark DataGrid control as the result of user interaction.
 GridSelectionEventKind
spark.events The GridSelectionEventKind class defines constants for the valid values of the spark.events.GridSelectionEvent class kind property.
 GridSelectionMode
spark.components.gridClasses The GridSelectionMode class defines the valid constant values for the selectionMode property of the Spark DataGrid and Grid controls.
 GridSortEvent
spark.events The GridSortEvent class represents events that are dispatched when the data provider of a Spark DataGrid control is sorted as the result of the user clicking on the header of a column in the DataGrid.
 GridView
spark.components.gridClasses This class is internal to the DataGrid implementation.
 GripperSkin
spark.skins.spark.windowChromeThe default skin class for the gripper button in the Spark WindowedApplication component and Spark Window component when you use Flex chrome.
 Group
spark.components The Group class is the base container class for visual elements.
 GroupBase
spark.components.supportClasses The GroupBase class defines the base class for components that display visual elements.
 Grouping
mx.collections The Grouping class defines the fields in the data provider of the AdvancedDataGrid control used to group data.
 GroupingCollection
mx.collections The GroupingCollection class lets you create grouped data from flat data for display in the AdvancedDataGrid control.
 GroupingCollection2
mx.collections The GroupingCollection2 class lets you create grouped data from flat data for display in the AdvancedDataGrid control.
 GroupingField
mx.collections The GroupingField class represents individual data fields that you use to group flat data for display by the AdvancedDataGrid control.
 HaloBorder
mx.skins.halo Defines the appearance of the default border for the Halo theme.
 HaloColors
mx.skins.halo Defines the colors used by components that support the Halo theme.
 HaloDefaults
mx.charts.styles Initializes the core default styles for the charts classes.
 HaloFocusRect
mx.skins.halo Defines the skin for the focus indicator.
 HBox
mx.containers The Halo HBox container lays out its children in a single horizontal row.
 HDividedBox
mx.containers The HDividedBox container lays out its children horizontally in the same way as HBox container, but it inserts a draggable divider in the gap between each child.
 HDivider
spark.containers 
 HDividerGroup
spark.containers 
 HeaderEvent
mx.rpc.events The event that indicates an RPC operation, such as a WebService SOAP request, returned a header in the response.
 HGroup
spark.components The HGroup container is an instance of the Group container that uses the HorizontalLayout class.
 HideShowEffectTargetFilter
mx.effects.effectClasses HideShowEffectTargetFilter is a subclass of EffectTargetFilter that handles the logic for filtering targets that have been shown or hidden by modifying their visible property.
 HierarchicalCollectionView
mx.collections The HierarchicalCollectionView class provides a hierarchical view of a standard collection.
 HierarchicalCollectionViewCursor
mx.collections The HierarchicalCollectionViewCursor class defines a cursor for a hierarchical view of a standard collection.
 HierarchicalData
mx.collections Hierarchical data is data already in a structure of parent and child data items.
 HighlightBitmapCaptureSkin
spark.skins.spark Base class for skins that do a bitmap capture of a target components and apply a filter to the bitmap.
 HistoryManager
mx.managers History management lets users navigate through a Flex application using the web browser's Back and Forward navigation commands.
 HitData
mx.charts The HitData class represents information about the data item at a specific location on the screen.
 HLOCChart
mx.charts The HLOCChart (High Low Open Close) control represents financial data as a series of elements representing the high, low, closing, and optionally opening values of a data series.
 HLOCItemRenderer
mx.charts.renderers The default item renderer for an HLOCSeries object.
 HLOCSeries
mx.charts.series Represents financial data as a series of elements representing the high, low, closing, and, optionally, opening values of a data series.
 HLOCSeriesBase
mx.charts.chartClasses HLOCSeriesBase is the base class for the two financial series types, HLOCSeries and CandlestickSeries.
 HLOCSeriesItem
mx.charts.series.items Represents the information required to render an item as part of a HLOCSeries.
 HLOCSeriesRenderData
mx.charts.series.renderData Represents all the information needed by the HLOCSeries and CandlestickSeries objects to render.
 HNoTrackNoThumbScrollBarSkin
spark.skinsThe default skin class for the Spark HScrollBar component.
 HorizontalAlign
spark.layouts The HorizontalAlign class defines the possible values for the horizontalAlign property of the VerticalLayout class.
 HorizontalLayout
spark.layouts The HorizontalLayout class arranges the layout elements in a horizontal sequence, left to right, with optional gaps between the elements and optional padding around the elements.
 HorizontalList
mx.controls The HorizontalList control displays a horizontal list of items.
 HRule
mx.controls The HRule control creates a single horizontal line.
 HSBColor
mx.utils This class holds information for a color represented in HSB (Hue, Saturation, and Brightness) space.
 HSBInterpolator
spark.effects.interpolation The HSBInterpolator class provides Hue, Saturation, and Brightness (HSB) color interpolation between RGB uint start and end values.
 HScrollBar
mx.controls The HScrollBar (horizontal ScrollBar) control lets you control the portion of data that is displayed when there is too much data to fit in a display area.
 HScrollBar
spark.components The HScrollBar (horizontal scrollbar) control lets you control the portion of data that is displayed when there is too much data to fit horizontally in a display area.
 HScrollBarSkin
spark.skins.mobile ActionScript-based skin for HScrollBar components in mobile applications.
 HScrollBarSkin
spark.skins.sparkThe default skin class for the Spark HScrollBar component.
 HScrollBarThumbSkin
spark.skins.mobile ActionScript-based skin for the HScrollBar thumb skin part in mobile applications.
 HScrollBarThumbSkin
spark.skins.sparkThe default skin class for the thumb of a Spark HScrollBar component.
 HScrollBarTrackSkin
spark.skins.sparkThe default skin class for the track on a Spark HScrollBar component.
 HSlider
mx.controls The HSlider control lets users select a value by moving a slider thumb between the end points of the slider track.
 HSlider
spark.components The HSlider (horizontal slider) control lets users select a value by moving a slider thumb between the end points of the slider track.
 HSliderDataTip
spark.skins.mobile.supportClasses HSlider dataTip component for HSlider in mobile applications.
 HSliderSkin
spark.skins.mobile ActionScript-based skin for HSlider controls in mobile applications.
 HSliderSkin
spark.skins.sparkThe default skin class for the Spark HSlider component.
 HSliderThumbSkin
spark.skins.mobile ActionScript-based skin for the HSlider thumb skin part in mobile applications.
 HSliderThumbSkin
spark.skins.sparkThe default skin class for the thumb of a Spark HSlider component.
 HSliderTrackSkin
spark.skins.mobile ActionScript-based skin for the HSlider track skin part in mobile applications.
 HSliderTrackSkin
spark.skins.sparkThe default skin class for the track of a Spark HSlider component.
 HTML 
mx.controls The HTML control lets you display HTML content in your application.
 HTTPChannel
mx.messaging.channels The HTTPChannel class provides the HTTP support for messaging.
 HTTPMultiService
mx.rpc.http.mxml You use the <mx:HTTPMultiService> tag to represent an HTTPMultiService object in an MXML file.
 HTTPMultiService
mx.rpc.http You use the <mx:HTTPMultiService> tag to represent a collection of http operations.
 HTTPRequestMessage
mx.messaging.messages HTTP requests are sent to the HTTP endpoint using this message type.
 HTTPService
mx.rpc.http.mxml You use the <mx:HTTPService> tag to represent an HTTPService object in an MXML file.
 HTTPService
mx.rpc.http You use the HTTPService class to represent an HTTPService object in ActionScript.
 HueShader
mx.graphics.shaderClasses Creates a blend shader that is equivalent to the 'Hue' blend mode for RGB premultiplied colors available in Adobe Creative Suite tools.
 IAbstractEffect
mx.effects The IAbstractEffect interface is used to denote that a property or parameter must be of type Effect, but does not actually implement any of the APIs of the IEffect interface.
 IAdvancedDataGridRendererProvider
mx.controls.advancedDataGridClasses The IAdvancedDataGridRendererProvider interface defines the interface implemented by the AdvancedDataGridRendererProvider class, which defines the item renderer for the AdvancedDataGrid control.
 IAdvancedStyleClient
mx.styles This interface describes the advanced properties that a component must implement to fully participate in the advanced style subsystem.
 IAnimationTarget
spark.effects.animation The IAnimationTarget interface is implemented by classes that support the events for an Animation instance.
 IAssetLayoutFeatures
mx.core The IAssetLayoutFeatures interface defines the minimum properties and methods required for an Object to support advanced transforms in embedded assets.
 IAutomationObject
mx.automation The IAutomationObject interface defines the interface for a delegate object that implements automation for a component.
 IAxis
mx.charts.chartClasses The IAxis class is an abstract interface for defining label, tick mark, and data positioning properties for a chart axis.
 IAxisRenderer
mx.charts.chartClasses The IAxis class is an abstract interface for defining label, tick mark, and data positioning properties for a chart axis.
 IBar
mx.charts.chartClasses The IBar interface is implemented by any any series that can be clustered vertically, such as a BarSeries.
 IBindingClient
mx.binding This is used to mark documents, which have data bindings.
 IBitmapFilter
mx.filters Interface used by some Spark filters.
 IBorder
mx.core The IBorder interface defines the interface that all classes used for border skins should implement.
 IBrowserManager
mx.managers The interface that the shared instance of the BrowserManager implements.
 IButton
mx.core The IButton interface is a marker interface that indicates that a component acts as a button.
 IChartElement
mx.charts.chartClasses IChartElement defines the base set of properties and methods required by a UIComponent to be representable in the data space of a chart.
 IChartElement2
mx.charts.chartClasses IChartElement2 defines the base set of properties and methods required by a UIComponent to be representable in the data space of a chart.
 IChildList
mx.core The IChildList interface defines the properties and methods for accessing and manipulating child lists, which are subsets of a DisplayObjectContainer's children.
 ICollectionView
mx.collections An ICollectionView is a view onto a collection of data.
 IColumn
mx.charts.chartClasses ChartElements that can be clustered along the vertical axis should implement this interface.
 IConfiguration
flashx.textLayout.elements Read-only interface to a configuration object.
 IconItemRenderer 
spark.components The IconItemRenderer class is a performant item renderer optimized for mobile devices.
 IconPlacement
spark.components The IconPlacement class defines the constants for the allowed values of the iconPlacement style of a Button, CheckBox, RadioButton or ToggleButton.
 IConstraintClient
mx.core The IConstraintClient interface defines the interface for components that support layout constraints.
 IConstraintLayout
mx.containers.utilityClasses IConstraintLayout is a marker interface that indicates that a container supports ConstraintColumn class and ConstraintRow class within its layout.
 IContainer
mx.core IContainer is a interface that indicates a component extends or mimics mx.core.Container
 IContentLoader
spark.core Provides custom image/content loader for BitmapImage instances.
 IDataCanvas
mx.charts.chartClasses This interface is for internal use only.
 IDataGridElement
spark.components.gridClasses Visual elements of the Spark DataGrid control that must remain in sync with the grid's layout and scroll position must implement this interface.
 IDataProviderEnhance
spark.components.supportClasses Adds functionality to list driven components.
 IDataRenderer
mx.core The IDataRenderer interface defines the interface for components that have a data property.
 IDeferredContentOwner
mx.core The IDeferredContentOwner interface defines the properties and methods for deferred instantiation.
 IDeferredInstance
mx.core The IDeferredInstance interface defines the Flex deferred instance factory interface.
 IDeferredInstantiationUIComponent
mx.core The IDeferredInstantiationUIComponent interface defines the interface for a component or object that defers instantiation.
 IDisplayText
spark.core The IDisplayText interface defines the properties and methods for simple text display.
 IDropDownContainer
spark.components.supportClasses 
 IDropInListItemRenderer
mx.controls.listClasses The interface for "drop-in" item renderers.
 IEaser
spark.effects.easing The IEaser interface is implemented by classes that provide time-easing functionality for the Animation class.
 IEditableText
spark.core The IEditableText interface defines the properties and methods for editable text.
 IEditManager
flashx.textLayout.edit IEditManager defines the interface for handling edit operations of a text flow.
 IEffect
mx.effects The IEffect interface defines the base interface of all Flex effects.
 IEffectInstance
mx.effects The IEffectInstance interface represents an instance of an effect playing on a target.
 IEffectTargetHost
mx.effects The IEffectTargetHost interface defines the interface that lets you access the target list-based control of a data effect.
 IExplicitFormatResolver
flashx.textLayout.elements Interface to a format resolver.
 IFactory
mx.core The IFactory interface defines the interface that factory classes such as ClassFactory must implement.
 IFill
mx.graphics Defines the interface that classes that perform a fill must implement.
 IFlexAsset
mx.core IFlexAsset is a marker interface with the following meaning: if a class declares that it implements IFlexAsset, then that class represents an asset -- such as a bitmap, a font, or a sound -- that has been embedded in a Flex application.
 IFlexContextMenu
mx.controls The IFlexContextMenu interface defines the interface for a Flex context menus.
 IFlexDisplayObject
mx.core The IFlexDisplayObject interface defines the interface for skin elements.
 IFlexModule
mx.core The IFlexModule interface is used as an optional contract with IFlexModuleFactory.
 IFlexModuleFactory
mx.core The IFlexModuleFactory interface represents the contract expected for bootstrapping Flex applications and dynamically loaded modules.
 IFlowComposer
flashx.textLayout.compose IFlowComposer defines the interface for managing the layout and display of a text flow.
 IFocusManager
mx.managers The IFocusManager interface defines the interface that components must implement to manage the focus on components in response to mouse activity or keyboard activity (Tab key), and to support a default button.
 IFocusManagerComplexComponent
mx.managers The IFocusManagerComplexComponent interface defines the interface that components that can have more than one internal focus target should implement in order to receive focus from the FocusManager.
 IFocusManagerComponent
mx.managers The IFocusManagerComponent interface defines the interface that focusable components must implement in order to receive focus from the FocusManager.
 IFocusManagerContainer
mx.managers The IFocusManagerContainer interface defines the interface that containers implement to host a FocusManager.
 IFocusManagerGroup
mx.managers The IFocusManagerGroup interface defines the interface that any component must implement if it is grouped in sets, where only one member of the set can be selected at any given time.
 IFontContextComponent
mx.core Allows a component to support a font context property.
 IFormatResolver
flashx.textLayout.elements Interface to a format resolver.
 IFormatter
mx.formatters This interface specifies the method that a formatter object must implement to allow it to be used as the formatter property for UI controls such as the AdvancedDataGridColumn.
 IGraphicElement
spark.core The IGraphicElement is implemented by IVisualElements that take advantage of the parent IGraphicElementContainer DisplayObject management.
 IGraphicElementContainer
spark.core The IGraphicElementContainer is the minimal contract for a container class to support IGraphicElement children.
 IGridItemEditor
spark.components.gridClasses The IGridItemEditor interface defines the interface that item editors for the Spark DataGrid and Spark Grid controls must implement.
 IGridItemRenderer
spark.components.gridClasses The IGridItemRenderer interface must be implemented by DataGrid item renderers.
 IGridVisualElement
spark.components.gridClasses This interface provides a method that dynamically created visual elements can use to configure themselves before they're displayed.
 IGroupingCollection
mx.collections The IGroupingCollection interface defines the interface required to create grouped data from flat data.
 IGroupingCollection2
mx.collections The IGroupingCollection2 interface defines the interface required to create grouped data from flat data.
 IHierarchicalCollectionView
mx.collections The IHierarchicalCollectionView interface defines an interface for hierarchical or grouped data.
 IHierarchicalCollectionViewCursor
mx.collections The IHierarchicalCollectionViewCursor interface defines the interface for enumerating a hierarchical collection view bidirectionally.
 IHierarchicalData
mx.collections The IHierarchicalData interface defines the interface used to represent hierarchical data as the data provider for a Flex component.
 IHighlightBitmapCaptureClient
spark.skins The IHighlightBitmapCaptureClient defines the interface for skins that support highlight bitmap capture.
 IHistoryManagerClient
mx.managers Interface that must be implemented by objects registered with the History Manager.
 IHTMLImporter
flashx.textLayout.conversion This interface should be implemented by converters that import HTML or HTML-structured data.
 IImageEncoder
mx.graphics.codec The IImageEncoder interface defines the interface that image encoders implement to take BitmapData objects, or ByteArrays containing raw ARGB pixels, as input and convert them to popular image formats such as PNG or JPEG.
 IIMEClient
flash.text.ime Interface for IME (input method editor) clients.
 IIMESupport
mx.core The IIMESupport interface defines the interface for any component that supports IME (input method editor).
 IInteractionEventHandler
flashx.textLayout.edit The IInteractionEventHandler interface defines the event handler functions that are handled by a Text Layout Framework selection or edit manager.
 IInterpolator
spark.effects.interpolation The IInterpolator interface is implemented by classes that calculate values for the Animation class.
 IInvalidating
mx.core The IInvalidating interface defines the interface for components that use invalidation to do delayed -- rather than immediate -- property commitment, measurement, drawing, and layout.
 IItemRenderer
spark.components The IItemRenderer interface defines the basic set of APIs that a class must implement to create an item renderer that can communicate with a host component.
 IItemRendererOwner
spark.components The IItemRendererOwner interface defines the basic set of APIs that a class must implement to support items renderers.
 ILayoutDirectionElement
mx.core The ILayoutDirectionElement interface defines the minimum properties and methods required for an Object to support the layoutDirection property.
 ILayoutElement
mx.core The ILayoutElement interface is used primarily by the layout classes to query, size and position the elements of GroupBase containers.
 ILayoutManager
mx.managers The LayoutManager is the engine behind Flex's measurement and layout strategy.
 ILayoutManagerClient
mx.managers The ILayoutManagerClient interface defines the interface that a component must implement to participate in the LayoutManager's commit/measurement/layout sequence.
 IList
mx.collections A collection of items organized in an ordinal fashion.
 IListItemRenderer
mx.controls.listClasses Item renderers and item editors for list components must implement the IListItemRenderer interface.
 IListItemRenderer
spark.components.listClasses 
 IListMarkerFormat
flashx.textLayout.formats This interface provides read access to ListMarkerFormat properties.
 ILogger
mx.logging All loggers within the logging framework must implement this interface.
 ILoggingTarget
mx.logging All logger target implementations within the logging framework must implement this interface.
 Image
mx.controls The Image control lets you import JPEG, PNG, GIF, and SWF files at runtime.
 Image
spark.components The Spark Image control is a skinnable component that provides a customizable loading state, chrome, and error state.
 ImageLoadingSkin
spark.skins.sparkThe default skin class for the Spark Image skin progress bar preloader.
 ImageSkin
spark.skins.mobile ActionScript-based skin for the Image component in mobile applications.
 ImageSkin
spark.skins.sparkThe default skin class for the Spark Image component.
 ImageSnapshot
mx.graphics A helper class used to capture a snapshot of any Flash component that implements flash.display.IBitmapDrawable, including Flex UIComponents.
 IMarshalSystemManager
mx.managers The IMarshalSystemManager interface defines the methods and properties that classes must implement if they want to access, add, and remove bridges to other applications in a cross-versioned configuration.
 IMenuBarItemRenderer
mx.controls.menuClasses The IMenuBarItemRenderer interface defines the interface that an item renderer for the top-level menu bar of a MenuBar control must implement.
 IMenuDataDescriptor
mx.controls.menuClasses The IMenuDataDescriptor interface defines the interface that a dataDescriptor for a Menu or MenuBar control must implement.
 IMenuItemRenderer
mx.controls.menuClasses The IMenuItemRenderer interface defines the interface that a menu item renderer for a Menu control must implement.
 IMessage
mx.messaging.messages This interface defines the contract for message objects.
 IMobileGridCellRenderer 
spark.components.itemRenderers This is the base interface that all mobile grid cell renderers must implement.
 IMobileGridTextCellRenderer 
spark.components.itemRenderers Extends IMobileGridCellRenderers with APIs for rendering text in MobileGrid cells.
 IModule
mx.modules An interface that marks a class as being a module.
 IModuleInfo
mx.modules An interface that acts as a handle for a particular module.
 IMXMLObject
mx.core The IMXMLObject interface defines the APIs that a non-visual component must implement in order to work properly with the MXML compiler.
 IMXMLSupport
mx.rpc.mxml Implementing this interface means that an RPC service can be used in an MXML document by using MXML tags.
 INavigator
spark.supportClasses 
 INavigatorBrowserManager
spark.managers The interface that the shared instance of the NavigtorBrowserManager implements, which is accessed with the NavigtorBrowserManager.getInstance() method.
 INavigatorContent
mx.core The INavigatorContent interface defines the interface that a container must implement to be used as the child of a navigator container, such as the ViewStack, TabNavigator, and Accordion navigator containers.
 INavigatorLayout
spark.layouts.supportClasses The INavigatorLayout interface indicates that the implementor is an LayoutBase that supports a selectedIndex property.
 IndexChangedEvent
mx.events The IndexChangedEvent class represents events that are dispatched when an index changes.
 IndexChangeEvent
spark.events The IndexChangeEvent class represents events that are dispatched when an index changes in a Spark component.
 InlineGraphicElement
flashx.textLayout.elements The InlineGraphicElement class handles graphic objects that display inline in the text.
 InlineGraphicElementStatus
flashx.textLayout.elements The InlineGraphicElementStatus class defines a set of constants for checking the value of InlineGraphicElement.status.
 InlineScroller
spark.components The InlineScroller component displays a single scrollable component, called a viewport, and horizontal and vertical scroll bars.
 InlineScrollerSkin
spark.skinsThe default skin class for the Spark InlineScroller component.
 InsertInlineGraphicOperation
flashx.textLayout.operations The InsertInlineGraphicOperation class encapsulates the insertion of an inline graphic into a text flow.
 InsertTableElementOperation
flashx.textLayout.operations 
 InsertTextOperation
flashx.textLayout.operations The InsertTextOperation class encapsulates a text insertion operation.
 InstanceCache
mx.charts.chartClasses InstanceCache is a utility that governs the task of creating and managing a set of n object instances, where n changes frequently.
 InteractionMode
mx.core The InteractionMode class defines the alues for the interactionMode property of the UIComponent class.
 InteractionState
spark.components.supportClasses Values for the state property of the InteractionStateDetector class.
 InteractionStateDetector
spark.components.supportClasses A helper class for components to use to help them determine if they should be in the up, over, or down states.
 InterDragManagerEvent
mx.events An event sent between DragManagers that are in separate but trusted ApplicationDomains to handle the dispatching of DragEvents to the drag targets.
 InterManagerRequest
mx.events This is an event that is sent between ApplicationDomains to notify trusted listeners about activity in a particular manager.
 InterruptionBehavior
mx.states The InterruptionBehavior class defines constants for use with the interruptionBehavior property of the mx.states.Transition class.
 InvalidateRequestData
mx.events The InvalidateRequestData class defines constants for the values of the data property of a SWFBridgeRequest object when used with the SWFBridgeRequest.INVALIDATE_REQUEST request.
 InvalidCategoryError
mx.logging.errors This error is thrown when a category specified for a logger contains invalid characters or is malformed.
 InvalidChannelError
mx.messaging.errors This error is thrown when a Channel can't be accessed or is not valid for the current destination.
 InvalidDestinationError
mx.messaging.errors This error is thrown when a destination can't be accessed or is not valid.
 InvalidFilterError
mx.logging.errors This error is thrown when a filter specified for a target contains invalid characters or is malformed.
 InvokeEvent
mx.rpc.events The event that indicates an RPC operation has been invoked.
 IOLAPAttribute
mx.olap The IOLAPAttribute interface represents an attribute within a dimension of an OLAP schema.
 IOLAPAxisPosition
mx.olap The IOLAPAxisPosition interface represents a position on an OLAP axis.
 IOLAPCell
mx.olap The IOLAPCell interface represents a cell in an OLAPResult instance.
 IOLAPCube
mx.olap The IOLAPCube interface represents an OLAP cube that holds an N-dimensional representation of a flat data set.
 IOLAPCustomAggregator
mx.olap The IOLAPCustomAggregator interface defines the interface implemented by custom aggregator classes.
 IOLAPDimension
mx.olap The IOLAPDimension interface represents a dimension in an IOLAPCube instance.
 IOLAPElement
mx.olap The IOLAPElement interface defines a base interface that provides common properties for all OLAP elements.
 IOLAPHierarchy
mx.olap The IOLAPHierarchy interface represents a user-defined hierarchy in a dimension of an OLAP schema.
 IOLAPLevel
mx.olap The IOLAPLevel interface represents a level within the OLAP schema of an OLAP cube, where a hierarchy of a dimension contains one or more levels.
 IOLAPMember
mx.olap The IOLAPMember interface represents a member of a level of an OLAP schema.
 IOLAPQuery
mx.olap The IOLAPQuery interface represents an OLAP query that is executed on an IOLAPCube.
 IOLAPQueryAxis
mx.olap The IOLAPQueryAxis interface represents an axis of an OLAP query.
 IOLAPResult
mx.olap The IOLAPResult interface represents the result of a query on an OLAP cube.
 IOLAPResultAxis
mx.olap The IOLAPResultAxis interface represents an axis of the result of an OLAP query.
 IOLAPSchema
mx.olap The IOLAPSchema interface represents the OLAP schema.
 IOLAPSet
mx.olap The IOLAPSet interface represents a set, which is used to configure the axis of an OLAP query.
 IOLAPTuple
mx.olap The IOLAPTuple interface represents a tuple.
 IOperation
flashx.undo IOperation defines the interface for operations that can be undone and redone.
 IOverride
mx.states The IOverride interface is used for view state overrides.
 IPersistenceManager 
spark.managers IPersistenceManager defines the interface that all persistence managers must implement.
 IPlainTextExporter
flashx.textLayout.conversion This interface should be implemented by converters that export plain text.
 IPreloaderDisplay
mx.preloaders Defines the interface that a class must implement to be used as a download progress bar.
 IProgrammaticSkin
mx.core The IProgrammaticSkin interface defines the interface that skin classes must implement if they use the name property skin interface.
 IPropertyChangeNotifier
mx.core The IPropertyChangeNotifier interface defines a marker interface.
 IProxiedStageTextWrapper
spark.core This interface defines properties for mobile wrapper classes of StageText that need to handle touch scrolling and soft keyboard.
 IRawChildrenContainer
mx.core The IRawChildrenContainer interface defines the APIs for containers that can return an IChildList that represents all their children.
 IRectangularBorder
mx.core The IRectangularBorder interface defines the interface that all classes used for rectangular border skins should implement.
 IRepeater
mx.core The IRepeater interface defines the public APIs of the Repeater object.
 IRepeaterClient
mx.core The IRepeaterClient interface defines the APIs for components that can have multiple instances created by a Repeater.
 IResourceBundle
mx.resources The IResourceBundle and IResourceManager interfaces work together to provide localization support for Flex applications.
 IResourceManager
mx.resources The APIs of the IResourceManager interface provide localization support for Flex applications.
 IResponder
mx.rpc This interface provides the contract for any service that needs to respond to remote or asynchronous calls.
 Iris
mx.effects The Iris effect animates the effect target by expanding or contracting a rectangular mask centered on the target.
 IrisInstance
mx.effects.effectClasses The IrisInstance class implements the instance class for the Iris effect.
 ISandboxSupport
flashx.textLayout.container Interface to support TLF content in a sub-application.
 ISelectableList
mx.core The ISelectableList interface indicates that the implementor is an IList element that supports a selectedIndex property.
 ISelectionManager
flashx.textLayout.edit The ISelectionManager interface defines the interface for handling text selection.
 ISharedDisplayObject
spark.core The ISharedDisplayObject interface defines the minimum requirements that a DisplayObject must implement to be shared between IGraphicElement objects.
 ISimpleStyleClient
mx.styles This interface describes the properties and methods that an object must implement so that it can participate in the style subsystem.
 ISmallMessage
mx.messaging.messages A marker interface that is used to indicate that an IMessage has an alternative smaller form for serialization.
 ISort
mx.collections The ISort interface defines the interface for classes that provide the sorting information required to sort the data of a collection view.
 ISortField
mx.collections The ISortField interface defines the interface for classes that are used with ISort classes, to provide the sorting information required to sort the specific fields or property in a collection view.
 IStackable
mx.charts.chartClasses The IStackable interface is implemented by any series that can be stacked.
 IStackable2
mx.charts.chartClasses The IStackable2 interface is implemented by any series that can be stacked.
 IStateClient
mx.core The IStateClient interface defines the interface that components must implement to support view states.
 IStateClient2
mx.core The IStateClient2 interface defines the interface that components must implement to support Flex 4 view state semantics.
 IStroke
mx.graphics Defines the interface that classes that define a line must implement.
 IStyleableEditableText
spark.components.supportClasses IStyleableEditableText defines the methods and properties of classes that implement styleable wrappers around native input text.
 IStyleClient
mx.styles This interface describes the properties and methods that an object must implement so that it can fully participate in the style subsystem.
 IStyleManager
mx.styles The IStyleManager class manages the following: Which CSS style properties the class inherits Which style properties are colors, and therefore get special handling A list of strings that are aliases for color values This interface was used by Flex 2.0.1.
 IStyleManager2
mx.styles The IStyleManager2 class manages the following: Which CSS style properties the class inherits Which style properties are colors, and therefore get special handling A list of strings that are aliases for color values
 IStyleModule
mx.styles Simple interface to manipulate style modules.
 ISummaryCalculator
mx.collections The ISummaryCalculator interface defines the interface implemented by custom summary calculator classes.
 ISWFBridgeGroup
mx.core A sandbox bridge group is a group of bridges that represent applications that this application can communicate with.
 ISWFBridgeProvider
mx.core An implementor of ISWFBridgeProvider provides a bridge to an application in a different security sandbox or to an application that was compiled with a different version of the Flex compiler and is running in a separate ApplicationDomain.
 ISWFContext
flashx.textLayout.compose The ISWFContext interface allows a SWF file to share its context with other SWF files that load it.
 ISWFLoader
mx.core The ISWFLoader interface defines an API with special properties and method required when loading compatible applications and untrusted applications.
 ISystemManager
mx.managers An ISystemManager manages an "application window".
 ITabStopFormat
flashx.textLayout.formats This interface provides read access to tab stop-related properties.
 ItemClickEvent
mx.events Represents events that are dispatched when a navigation item on a navigator bar, such as a ButtonBar, LinkBar, or TabBar control, has been clicked.
 ItemPendingError
mx.collections.errors This error is thrown when retrieving an item from a collection view requires an asynchronous call.
 ItemRenderer
spark.components.supportClasses The ItemRenderer class is the base class for Spark item renderers.
 ItemResponder
mx.collections The ItemResponder class provides a default implementation of the mx.rpc.IResponder interface.
 ITextExporter
flashx.textLayout.conversion Interface for exporting text content from a TextFlow instance to a given format, which may for example be String or XML format, or a user-defined format.
 ITextImporter
flashx.textLayout.conversion Interface for importing text content into a TextFlow from an external source.
 ITextInput
mx.core Defines an interface for a single-line text field that is optionally editable.
 ITextLayoutFormat
flashx.textLayout.formats This interface provides read access to FlowElements-related properties.
 ITextLayoutImporter
flashx.textLayout.conversion This interface should be implemented by converters that import TextLayout structured data.
 IToggleButton
mx.core The IToggleButton interface is a marker interface that indicates that a component acts as a toggleable button.
 IToolTip
mx.core The IToolTip interface defines the API that tooltip-like components must implement in order to work with the ToolTipManager.
 IToolTipManagerClient
mx.managers Components that implement IToolTipManagerClient can have tooltips and must have a toolTip getter/setter.
 ITransientDeferredInstance
mx.core The ITransientDeferredInstance interface extends IDeferredInstance and adds the ability for the user to reset the deferred instance factory to its initial state (usually this implies releasing any known references to the component, such as the setting the owning document property that refers to the instance to null).
 ITreeDataDescriptor
mx.controls.treeClasses Interface providing methods for parsing and adding nodes to a collection of data that is displayed by a Tree control.
 ITreeDataDescriptor2
mx.controls.treeClasses The ITreeDataDescriptor2 Interface defines methods for parsing and adding nodes to a collection of data that is displayed by a Tree control.
 IUIComponent
mx.core The IUIComponent interface defines the basic set of APIs that you must implement to create a child of a Flex container or list.
 IUID
mx.core The IUID interface defines the interface for objects that must have Unique Identifiers (UIDs) to uniquely identify the object.
 IUITextField
mx.core The IUITextField interface defines the basic set of APIs for UITextField instances.
 IUndoManager
flashx.undo IUndoManager defines the interface for managing the undo and redo stacks.
 IValidator
mx.validators This interface specifies the methods and properties that a Validator object must implement.
 IValidatorListener
mx.validators The interface that components implement to support the Flex data validation mechanism.
 IVerticalJustificationLine
flashx.textLayout.compose The IVerticalJustificationLine interface defines the methods and properties required to allow the vertical justification of text lines.
 IViewCursor
mx.collections Defines the interface for enumerating a collection view bi-directionally.
 IViewport
spark.core The IViewport interface is implemented by components that support a viewport.
 IVisualElement
mx.core The IVisualElement interface defines the minimum properties and methods required for a visual element to be laid out and displayed in a Spark container.
 IVisualElementContainer
mx.core The IVisualElementContainer interface defines the minimum properties and methods required for a container to manage Spark components for display.
 IWindow 
mx.core The IWindow interface defines the API for components that serve as top-level containers in Flex-based AIR applications (containers that represent operating system windows).
 IXMLDecoder
mx.rpc.xml Decodes an XML document to an ActionScript object graph based on XML Schema definitions.
 IXMLEncoder
mx.rpc.xml Encodes an ActionScript object graph to XML based on an XML schema.
 IXMLNotifiable
mx.utils The IXMLNotifiable interface.
 IXMLSchemaInstance
mx.rpc.xml An ActionScript type should implement this interface when it needs to instruct an XML Schema based encoder (such as the WebService SOAP client) which concrete type definition to use while encoding instances of the type.
 JPEGEncoder
mx.graphics.codec The JPEGEncoder class converts raw bitmap images into encoded images using Joint Photographic Experts Group (JPEG) compression.
 JustificationRule
flashx.textLayout.formats Defines values for setting the justificationRule property of the TextLayoutFormat class.
 Keyframe
spark.effects.animation The Keyframe class defines the value of a property at a specific time during an effect.
 Label
mx.controls The Label control displays a single line of noneditable text.
 Label
spark.components Label is a low-level UIComponent that can render one or more lines of uniformly-formatted text.
 LabelAccImpl
mx.accessibility LabelAccImpl is a subclass of AccessibilityImplementation which implements accessibility for the Label class.
 LabelItemRenderer 
spark.components The LabelItemRenderer class defines the default item renderer for a list-based control in the mobile theme.
 LabelPlacement
spark.components.supportClasses The LabelPlacement class defines the valid constant values for the labelPlacement property of the Spark CheckBox.
 LabelUtil
spark.utils The LabelUtil class is used by components to determine the correct text to display for their renderers or sub-parts.
 LastOperationStatus
spark.globalization The LastOperationStatus class enumerates constant values that represent the status of the most recent globalization service operation.
 LayoutAxis
spark.layouts.supportClasses The DeferredCreationPolicy class defines the constant values for the creationPolicy property of the DeferedGroup class.
 LayoutBase
spark.layouts.supportClasses The LayoutBase class defines the base class for all Spark layouts.
 LayoutContainer
mx.core Flex defines a default, or Application, container that lets you start adding content to your module or Application without explicitly defining another container.
 LayoutDirection
mx.core The LayoutDirection class defines the constant values for the layoutDirection style of an IStyleClient and the layoutDirection property of an ILayoutDirectionElement.
 LayoutManager
mx.managers The LayoutManager is the engine behind Flex's measurement and layout strategy.
 LeadingModel
flashx.textLayout.formats Defines values for setting the leadingModel property of the TextLayoutFormat class, composed of valid combinations of leading basis and leading direction.
 Legend
mx.charts The Legend control adds a legend to your charts, where the legend displays the label for each data series in the chart and a key showing the chart element for the series.
 LegendData
mx.charts.chartClasses The LegendData structure is used by charts to describe the items that should be displayed in an auto-generated legend.
 LegendItem
mx.charts Controls the individual legend elements in a chart legend.
 LegendMouseEvent
mx.charts.events The LegendMouseEvent class represents event objects that are specific to the chart legend components.
 Line
spark.primitives The Line class is a graphic element that draws a line between two points.
 Linear
mx.effects.easing The Linear class defines easing functions to implement linear motion with Flex effect classes.
 Linear
spark.effects.easing The Linear class defines an easing with three phases: acceleration, uniform motion, and deceleration.
 LinearAxis
mx.charts The LinearAxis class maps numeric values evenly between a minimum and maximum value along a chart axis.
 LinearGradient
mx.graphics The LinearGradient class lets you specify the fill of a graphical element, where a gradient specifies a gradual color transition in the fill color.
 LinearGradientStroke
mx.graphics The LinearGradientStroke class lets you specify a gradient filled stroke.
 LineBreak
flashx.textLayout.formats Defines values for setting the lineBreak property of TextLayoutFormat to specify how lines are broken within wrapping text.
 LineChart
mx.charts The LineChart control represents a data series as points connected by a continuous line.
 LineFormattedTarget
mx.logging.targets All logger target implementations that have a formatted line style output should extend this class.
 LineRenderer
mx.charts.renderers A simple implementation of a line segment renderer that is used by LineSeries objects.
 LineSeries
mx.charts.series Defines a data series for a LineChart control.
 LineSeriesItem
mx.charts.series.items Represents the information required to render an item as part of a LineSeries.
 LineSeriesRenderData
mx.charts.series.renderData Represents all the information needed by the LineSeries to render.
 LineSeriesSegment
mx.charts.series.items Represents the information required to render a segment in a LineSeries.
 LinkBar
mx.controls A LinkBar control defines a horizontal or vertical row of LinkButton controls that designate a series of link destinations.
 LinkButton
mx.controls The LinkButton control is a borderless Button control whose contents are highlighted when a user moves the mouse over it.
 LinkButtonAccImpl
mx.accessibility LinkButtonAccImpl is a subclass of AccessibilityImplementation which implements accessibility for the LinkButton class.
 LinkButtonSkin
mx.skins.halo The skin for all the states of a LinkButton.
 LinkButtonSkin
mx.skins.sparkThe Spark skin class for the MX LinkButton component.
 LinkedList
mx.utils Provides a generic doubly linked list implementation.
 LinkedListNode
mx.utils Class representing a doubly linked list node.
 LinkElement
flashx.textLayout.elements The LinkElement class defines a link to a URI (Universal Resource Identifier), which is executed when the user clicks it.
 LinkSeparator
mx.skins.halo The skin for the separator between the Links in a LinkBar.
 LinkState
flashx.textLayout.elements The LinkState class defines a set of constants for the linkState property of the LinkElement class.
 List
mx.controls The List control displays a vertical list of items.
 List
spark.components The List control displays a vertical list of items.
 ListAccImpl
mx.accessibility ListAccImpl is a subclass of AccessibilityImplementation which implements accessibility for the List class.
 ListAccImpl
spark.accessibility ListAccImpl is the accessibility implementation class for spark.components.List.
 ListBase
mx.controls.listClasses The ListBase class is the base class for controls that represent lists of items that can have one or more selected and can scroll through the items.
 ListBase
spark.components.supportClasses The ListBase class is the base class for all components that support selection.
 ListBaseAccImpl
mx.accessibility ListBaseAccImpl is a subclass of AccessibilityImplementation which implements accessibility for the ListBase class.
 ListBaseAccImpl
spark.accessibility ListBaseAccImpl is a superclass of the Spark ListAccImpl, DropDownListAccImpl, ComboBoxAccImpl, ButtonBarBaseAccImpl, and TabBarAccImpl.
 ListBaseContentHolder
mx.controls.listClasses The ListBaseContentHolder class defines a container in a list-based control of all of the control's item renderers and item editors.
 ListBaseSeekPending
mx.controls.listClasses An object that stores data about a seek operation that was interrupted by an ItemPendingError error.
 ListBaseSelectionData
mx.controls.listClasses Records used by list classes to keep track of what is selected.
 ListCollectionView
mx.collections The ListCollectionView class adds the properties and methods of the ICollectionView interface to an object that conforms to the IList interface.
 ListData
mx.controls.listClasses The ListData class defines the data type of the listData property implemented by drop-in item renderers or drop-in item editors for the List control.
 ListDropIndicator
mx.skins.halo The skin for the drop indicator of a list-based control.
 ListDropIndicator
spark.skins.spark The default skin for the drop indicator of a List component in case List doesn't have a dropIndicator part defined in its skin.
 ListElement
flashx.textLayout.elements The List class is used for grouping together items into a numbered or unnumbered list.
 ListEvent
mx.events The ListEvent class represents events associated with items in list-based controls such as List, Tree, Menu, and DataGrid.
 ListEvent
spark.events ListEvents dispatched by ListBase components like ButtonBar and List in response to MouseEvents are constructed with the incoming mouse event's properties.
 ListEventReason
mx.events Constants for the values of the reason property of a ListEvent object where the value of the type property is ListEvent.ITEM_EDIT_END.
 ListItemDragProxy
mx.controls.listClasses The default drag proxy used when dragging from an MX list-based control (except for the DataGrid class).
 ListItemDragProxy
spark.components.supportClasses The ListItemDragProxy class defines the default drag proxy used when dragging from a Spark List based control.
 ListItemElement
flashx.textLayout.elements ListItemElement is an item in a list.
 ListItemRenderer
mx.controls.listClasses The ListItemRenderer class defines the default item renderer for a List control.
 ListMarkerFormat
flashx.textLayout.formats Defines the marker format in a ListItemElement.
 ListRowInfo
mx.controls.listClasses Used by the list-based classes to store information about their IListItemRenderers.
 ListSkin
spark.skins.mobile ActionScript-based skin for the List components in mobile applications.
 ListSkin
spark.skins.sparkThe default skin class for a Spark List component.
 ListStylePosition
flashx.textLayout.formats Defines values for setting the listStylePosition property.
 ListStyleType
flashx.textLayout.formats Defines values for setting the listStyleType property of a TextLayoutFormat object.
 LoaderInvalidationEvent
spark.events The LoaderInvalidationEvent class represents events that are dispatched to notify ContentRequest instances that their original request has been invalidated.
 LoaderUtil
mx.utils The LoaderUtil class defines utility methods for use with Flex RSLs and generic Loader instances.
 LoadEvent
mx.rpc.soap This event is dispatched when a WSDL XML document has loaded successfully.
 Locale
mx.resources The Locale class can be used to parse a locale String such as "en_US_MAC" into its three parts: a language code, a country code, and a variant.
 Log
mx.logging Provides pseudo-hierarchical logging capabilities with multiple format and output options.
 LogAxis
mx.charts The LogAxis class maps numeric values logarithmically between a minimum and maximum value along a chart axis.
 LogEvent
mx.logging Represents the log information for a single logging event.
 LogEventLevel
mx.logging Static class containing constants for use in the level property.
 LogLogger
mx.logging The logger that is used within the logging framework.
 LuminosityMaskShader
mx.graphics.shaderClasses Creates a blend shader that is equivalent to the luminosity masking option (also known as soft masking) available in Adobe Creative Suite tools.
 LuminosityShader
mx.graphics.shaderClasses Creates a blend shader that is equivalent to the 'Luminosity' blend mode for RGB premultiplied colors available in Adobe Creative Suite tools.
 MacCloseButtonSkin
spark.skins.spark.windowChromeThe default skin class for the close button in the title bar of the Spark WindowedApplication component and Spark Window component when you use Flex chrome on an Apple Computer.
 MacMaximizeButtonSkin
spark.skins.spark.windowChromeThe default skin class for the maximize button in the title bar of the Spark WindowedApplication component and Spark Window component when you use Flex chrome with an Apple computer.
 MacMinimizeButtonSkin
spark.skins.spark.windowChromeThe default skin class for the minimize button in the title bar of the Spark WindowedApplication component and Spark Window component when you use Flex chrome with an Apple computer.
 MacTitleBarSkin
spark.skins.spark.windowChromeThe default skin class for the title bar of the Spark WindowedApplication component and Spark Window component for an Apple Macintosh when you use Flex chrome.
 MaskedTextInput
spark.components Masked Text Input Component A TextInput extension with a mask text and a string pattern of separators that constraints the text introduced by the user to the available characters dictated by the pattern and inserts or deletes separator characters guided by the mask text pattern.
 MaskEffect
mx.effects The MaskEffect class is an abstract base class for all effects that animate a mask, such as the wipe effects and the Iris effect.
 MaskEffectInstance
mx.effects.effectClasses The MaskEffectInstance class is an abstract base class that implements the instance class for the MaskEffect class.
 MaskType
spark.core The MaskType class defines the possible values for the maskType property of the GraphicElement class.
 MatchingCollator
spark.globalization The MatchingCollator class provides locale-sensitve string comparison capabilities with inital settings suitable for general string matching such as finding a matching word in a block of text.
 MaxAggregator
mx.olap.aggregators The MaxAggregator class implements the maximum aggregator.
 MaximizeButtonSkin
spark.skins.spark.windowChromeThe default skin class for the maximize button in the title bar of the Spark WindowedApplication component and Spark Window component when you use Flex chrome.
 MBeanAttributeInfo
mx.messaging.management Client representation of metadata for a MBean attribute.
 MBeanConstructorInfo
mx.messaging.management Client representation of metadata for a MBean constructor.
 MBeanFeatureInfo
mx.messaging.management Client representation of metadata for a MBean feature.
 MBeanInfo
mx.messaging.management Client representation of metadata for a MBean.
 MBeanOperationInfo
mx.messaging.management Client representation of metadata for a MBean operation.
 MBeanParameterInfo
mx.messaging.management Client representation of metadata for a MBean operation parameter.
 Menu
mx.controls The Menu control creates a pop-up menu of individually selectable choices, similar to the File or Edit menu found in most software applications.
 Menu
spark.components 
 MenuAccImpl
mx.accessibility MenuAccImpl is a subclass of AccessibilityImplementation which implements accessibility for the Menu class.
 MenuArrow
mx.skins.sparkThe Spark skin class for the branchIcon of an MX Menu component.
 MenuArrowDisabled
mx.skins.sparkThe Spark skin class for the disabled branchIcon of an MX Menu component.
 MenuBar
mx.controls A MenuBar control defines a horizontal, top-level menu bar that contains one or more menus.
 MenuBar
spark.components 
 MenuBarAccImpl
mx.accessibility MenuBarAccImpl is a subclass of AccessibilityImplementation which implements accessibility for the MenuBar class.
 MenuBarBackgroundSkin
mx.skins.halo The skin for the background of a MenuBar.
 MenuBarItem
mx.controls.menuClasses The MenuBarItem class defines the default item renderer for the top-level menu bar of a MenuBar control.
 MenuBarItemRenderer
spark.components.itemRenderers 
 MenuBarSkin
spark.skins 
 MenuCheck
mx.skins.sparkThe Spark skin class for the checkIcon of an MX Menu component.
 MenuCheckDisabled
mx.skins.sparkThe Spark skin class for the checkDisabledIcon of an MX Menu component.
 MenuCoreItemRenderer
spark.components.itemRenderers 
 MenuEvent
mx.events The MenuEvent class represents events that are associated with menu activities in controls such as Menu, MenuBar, and PopUpMenuButton.
 MenuEvent
spark.events 
 MenuItemRenderer
mx.controls.menuClasses The MenuItemRenderer class defines the default item renderer for menu items in any menu control.
 MenuItemRenderer
spark.components.itemRenderers 
 MenuItemSkin
mx.skins.sparkThe wireframe skin class for menu items in the MX Menu component.
 MenuListData
mx.controls.menuClasses The MenuListData class defines the data type of the listData property implemented by drop-in item renderers or drop-in item editors for the Menu and MenuBar control.
 MenuRadio
mx.skins.sparkThe Spark skin class for the radio icon of the MX Menu component.
 MenuRadioDisabled
mx.skins.sparkThe Spark skin class for the disabled radio icon of the MX Menu component.
 MenuSeparatorSkin
mx.skins.sparkThe Spark skin class for the menu item separators in the MX Menu component.
 MenuSkin
spark.skins 
 MessageAckEvent
mx.messaging.events The MessageAckEvent class is used to propagate acknowledge messages within the messaging system.
 MessageAgent
mx.messaging The MessageAgent class provides the basic low-level functionality common to message handling for a destination.
 MessageEvent
mx.messaging.events The MessageEvent class is used to propagate messages within the messaging system.
 MessageFaultEvent
mx.messaging.events The MessageFaultEvent class is used to propagate fault messages within the messaging system.
 MessagePerformanceUtils
mx.messaging.messages The MessagePerformanceUtils utility class is used to retrieve various metrics about the sizing and timing of a message sent from a client to the server and its response message, as well as pushed messages from the server to the client.
 MessageResponder
mx.messaging The MessageResponder class handles a successful result or fault from a message destination.
 MessageSerializationError
mx.messaging.errors This error indicates a problem serializing a message within a channel.
 MessagingError
mx.messaging.errors This is the base class for any messaging related error.
 MetadataEvent
mx.events The MetadataEvent class defines the event type for metadata and cue point events.
 MinAggregator
mx.olap.aggregators The MinAggregator class implements the minimum aggregator.
 MinimizeButtonSkin
spark.skins.spark.windowChromeThe default skin class for the minimize button in the title bar of the Spark WindowedApplication component and Spark Window component when you use Flex chrome.
 MobileGrid 
spark.components The MobileGrid displays a collection of items in a grid of rows and columns and column headers and is optimized for speed on mobile devices.
 MobileGridBitmapCellRenderer 
spark.components.itemRenderers Default lightweight class for rendering embedded Bitmaps or Multi-DPI Bitmaps in a MobileGrid cell .
 MobileGridColumn 
spark.components.supportClasses The MobileGridColumn class defines a column to display in a MobileGrid control.
 MobileGridHeaderButtonBarSkin
spark.skins 
 MobileGridHeaderButtonSkin
spark.skins 
 MobileGridHeaderEvent 
spark.events The MobileGridHeaderEvent class represents events that are dispatched when the user clicks on the header of a column in the DataGrid to sort it.
 MobileGridHeaderFirstButtonSkin
spark.skins 
 MobileGridLayout 
spark.layouts Internal class used for laying out rows, columns and headers of a MobileGrid component.
 MobileGridSkin
spark.skins 
 MobileGridTextCellRenderer 
spark.components.itemRenderers Default lightweight class for rendering formatted text in MobileGrid cells .
 MobileSkin
spark.skins.mobile.supportClasses ActionScript-based skin for mobile applications.
 ModifyInlineGraphicOperation
flashx.textLayout.operations The InsertInlineGraphicOperation class encapsulates the modification of an existing inline graphic.
 Module
mx.modules The base class for MXML-based dynamically-loadable modules.
 Module
spark.modules The base class for MXML-based dynamically-loadable modules.
 ModuleBase
mx.modules The base class for ActionScript-based dynamically-loadable modules.
 ModuleEvent
mx.events The ModuleEvent class represents the event object passed to the event listener for events related to dynamically-loaded modules.
 ModuleLoader
mx.modules ModuleLoader is a component that behaves much like a SWFLoader except that it follows a contract with the loaded content.
 ModuleLoader
spark.modules ModuleLoader is a component that behaves much like a SWFLoader except that it follows a contract with the loaded content.
 ModuleManager
mx.modules The ModuleManager class centrally manages dynamically loaded modules.
 MotionPath
spark.effects.animation The MotionPath class defines the collection of Keyframes objects for an effect, and the name of the property on the target to animate.
 Move
mx.effects The Move effect changes the position of a component over a specified time interval.
 Move
spark.effects The Move effect move the target object in the x and y directions.
 Move3D
spark.effects The Move3D class moves a target object in the x, y, and z dimensions.
 MoveChildrenOperation
flashx.textLayout.operations The MoveChildrenOperation class allows moving a set of siblings out of its immediate parent chain, and the operation removes any empty ancestor chain left behind.
 MoveEvent
mx.events Represents event objects that are dispatched when a Flex component moves.
 MoveInstance
mx.effects.effectClasses The MoveInstance class implements the instance class for the Move effect.
 MovieClipAsset
mx.core MovieClipAsset is a subclass of the flash.display.MovieClip class which represents movieclip symbols that you embed in a Flex application from a SWF file produced by Flash.
 MovieClipLoaderAsset
mx.core MovieClipLoaderAsset is a subclass of the MovieClipAsset class which represents SWF files that you embed in a Flex application.
 MovieClipSWFLoader
mx.controls The MovieClipSWFLoader control extends SWFLoader to provide convenience methods for manipulating a SWF which has a MovieClip as its root content, provided that the MovieClip is not a Flex application.
 MultiDPIBitmapSource
spark.utils This class provides a list of bitmaps for various runtime densities.
 MultiTopicConsumer
mx.messaging Like a Consumer, a MultiTopicConsumer subscribes to a destination with a single clientId and delivers messages to a single event handler.
 MultiTopicProducer
mx.messaging A MultiTopicProducer sends messages to a destination with zero or more subtopics.
 MultiValueInterpolator
spark.effects.interpolation The MultiValueInterpolator class interpolates each element of Arrays or Vectors of start and end elements separately, using another interpolator to do the interpolation for each element.
 MuteButton
spark.components.mediaClasses The MuteButton class defines the mute button used by the VideoPlayer control.
 MuteButtonSkin
spark.skins.spark.mediaClasses.fullScreenThe default skin class for the mute button of a Spark VideoPlayer component while in one of the fullScreen skin states.
 MuteButtonSkin
spark.skins.spark.mediaClasses.normalThe default skin class for the mute button of a Spark VideoPlayer component in the normal skin state.
 MXAdvancedDataGridItemRenderer
mx.controls.advancedDataGridClasses The MXAdvancedDataGridItemRenderer class defines the Spark item renderer class for use with the MX AdvancedDataGrid control.
 MXDataGridItemRenderer
mx.controls.dataGridClasses The MXDataGridItemRenderer class defines the Spark item renderer class for use with the MX DataGrid control.
 MXFTETextInput
mx.controls MXFTETextInput is a UIComponent which is used to support TLF text in MX controls and data grid renderers.
 MXItemRenderer
mx.controls.listClasses The MXItemRenderer class is the base class for Spark item renderers and item editors used in MX list-based controls.
 MXMLObjectAdapter
mx.core The MXMLObjectAdapter class is a stub implementation of the IMXMLObject interface, so that you can implement the interface without defining all of the methods.
 MXTreeItemRenderer
mx.controls.treeClasses The MXTreeItemRenderer class defines the Spark item renderer class for use with the MX Tree control.
 NameUtil
mx.utils The NameUtil utility class defines static methods for creating names for Flex objects.
 NavBar
mx.controls The NavBar control is the superclass for navigator controls, such as the LinkBar and TabBar controls, and cannot be instantiated directly.
 NavigationUnit
spark.core The NavigationUnit class defines the possible values for the getVerticalScrollPositionDelta() and getHorizontalScrollPositionDelta() methods of the IViewport class.
 NavigationUtil
flashx.textLayout.utils Utilities for manipulating a TextRange The methods of this class are static and must be called using the syntax NavigationUtil.method(parameter).
 Navigator
spark.containers The SkinnableContainer class is the base class for skinnable containers that have visual content.
 NavigatorContent
spark.components The NavigatorContent class defines a Spark container that can be used in an MX navigator container, such as the ViewStack, TabNavigator and Accordion containers.
 NavigatorGroup
spark.containers The NavigatorGroup class is the base container for navigating all visual elements.
 NavigatorLayoutBase
spark.layouts.supportClasses A NavigatorLayoutBase class is a base class for navigator layouts.
 NavigatorSkin
spark.skinsThe default skin class for a Spark Navigator container.
 NetConnectionChannel
mx.messaging.channels This NetConnectionChannel provides the basic NetConnection support for messaging.
 NetworkMonitor
mx.netmon NetworkMonitor is a stub used by the framework and enterprise service classes to send information to the Flash Builder Network Monitor feature.
 NoChannelAvailableError
mx.messaging.errors This error is thrown when no Channel is available to send messages.
 NumberBase
mx.formatters The NumberBase class is a utility class that contains general number formatting capabilities, including rounding, precision, thousands formatting, and negative sign formatting.
 NumberBaseRoundType
mx.formatters The NumberBaseRoundType class defines the constant values for formatter properties that specify a type of rounding.
 NumberFormatter
mx.formatters The NumberFormatter class formats a valid number by adjusting the decimal rounding and precision, the thousands separator, and the negative sign.
 NumberFormatter
spark.formatters The NumberFormatter class provides locale-sensitive formatting and parsing of numeric values.
 NumberFormatterBase
spark.formatters.supportClasses The NumberFormatterBase class is a base class for the NumberFormatter and CurrencyFormatter classes.
 NumberInterpolator
spark.effects.interpolation The NumberInterpolator class provides interpolation between start and end values represented as Number instances.
 NumberValidator
mx.validators The NumberValidator class ensures that a String represents a valid number.
 NumberValidator
spark.validators The NumberValidator class ensures that a String represents a valid number according to the conventions of a locale.
 NumberValidatorBase
spark.validators.supportClasses The NumberValidatorBase class contains all the common functionality that is required by the NumberValidator and CurrencyValidator classes.
 NumberValidatorDomainType
mx.validators The NumberValidatorDomainType class defines the values for the domain property of the NumberValidator class.
 NumericAxis
mx.charts.chartClasses The NumericAxis class acts as a common base class for axis types representing a continuous range of values between a defined minimum and maximum.
 NumericDataProvider
spark.collections This IList class generates items that are a sequential series of numbers.
 NumericStepper
mx.controls The NumericStepper control lets the user select a number from an ordered set.
 NumericStepper
spark.components The NumericStepper control lets you select a number from an ordered set.
 NumericStepperAccImpl
spark.accessibility NumericStepperAccImpl is the accessibility implementation class for spark.components.NumericStepper.
 NumericStepperDecrementButtonSkin
spark.skins.sparkThe default skin class for the down button of a Spark NumericStepper component.
 NumericStepperDownSkin
mx.skins.halo The skin for all the states of the down button in a NumericStepper.
 NumericStepperEvent
mx.events Represents events that are specific to the NumericStepper control.
 NumericStepperIncrementButtonSkin
spark.skins.sparkThe default skin class for the up button of a Spark NumericStepper component.
 NumericStepperSkin
spark.skins.sparkThe default skin class for a Spark NumericStepper component.
 NumericStepperTextInputSkin
spark.skins.sparkThe default skin class for the text input field of a Spark NumericStepper component.
 NumericStepperUpSkin
mx.skins.halo The skin for all the states of the up button in a NumericStepper.
 ObjectInstance
mx.messaging.management Client representation of an object name instance for server-side management controls.
 ObjectName
mx.messaging.management Client representation of the name for server-side management controls.
 ObjectProxy
mx.utils This class provides the ability to track changes to an item managed by this proxy.
 ObjectUtil
mx.utils The ObjectUtil class is an all-static class with methods for working with Objects within Flex.
 OLAPAttribute
mx.olap The OLAPAttribute class represents a single attribute of an OLAPDimension.
 OLAPAxisPosition
mx.olap The OLAPAxisPosition class represents a position along the axis of the result of an OLAP query result.
 OLAPCell
mx.olap The OLAPCell class represents a cell in an OLAPResult instance.
 OLAPCube
mx.olap The OLAPCube class represents an OLAP cube.
 OLAPDataGrid
mx.controls The OLAPDataGrid control expands on the functionality of the AdvancedDataGrid control to add support for the display of the results of OLAP queries.
 OLAPDataGridGroupRenderer
mx.controls.olapDataGridClasses The OLAPDataGridGroupRenderer class defines the default item renderer for a group renderer for the OLAPDataGrid control.
 OLAPDataGridHeaderRendererProvider
mx.controls.olapDataGridClasses The OLAPDataGridHeaderRendererProvider class lets you specify a custom header renderer for the columns in the OLAPDataGrid control.
 OLAPDataGridItemRendererProvider
mx.controls.olapDataGridClasses An OLAPDataGridItemRendererProvider instance lets you specify a formatter for the items in the OLAPDataGrid control.
 OLAPDataGridRendererProvider
mx.controls.olapDataGridClasses The OLAPDataGridRendererProvider class defines the base class for assigning item renderers used by the OLAPDataGrid control.
 OLAPDimension
mx.olap The OLAPDimension class represents a dimension of an OLAP cube.
 OLAPElement
mx.olap The OLAPElement class defines a base interface that provides common properties for all OLAP elements.
 OLAPHierarchy
mx.olap The OLAPHierarchy class represents a hierarchy of the schema of an OLAP cube.
 OLAPLevel
mx.olap The OLAPLevel class represents a level in an OLAP cube.
 OLAPMeasure
mx.olap The OLAPMeasure class represents a member of the measure dimension of an OLAP cube.
 OLAPMember
mx.olap The OLAPMember class represents a member of an OLAP dimension.
 OLAPQuery
mx.olap The OLAPQuery interface represents an OLAP query that is executed on an IOLAPCube.
 OLAPQueryAxis
mx.olap The OLAPQueryAxis interface represents an axis of an OLAP query.
 OLAPResult
mx.olap The OLAPResult class represents the result of a query on an OLAP cube.
 OLAPResultAxis
mx.olap The OLAPResultAxis class represents an axis of the result of an OLAP query.
 OLAPSchema
mx.olap The OLAPSchema class represents an OLAP cube or cubes.
 OLAPSet
mx.olap The OLAPSet class represents a set, which is used to configure the axis of an OLAP query.
 OLAPTrace
mx.olap The OLAPTrace class controls the generation of trace information generated by the OLAP classes and written to the log file.
 OLAPTuple
mx.olap The OLAPTuple class reprsents a tuple expression pointing to an OLAP cube cell.
 OnDemandEventDispatcher
mx.utils OnDemandEventDispatcher serves as a base class for classes that dispatch events but expect listeners to be infrequent.
 Operation
mx.rpc.http An Operation used specifically by an HTTPMultiService.
 Operation
mx.rpc.remoting.mxml The Operation used for RemoteObject when created in an MXML document.
 Operation
mx.rpc.remoting An Operation used specifically by RemoteObjects.
 Operation
mx.rpc.soap.mxml An Operation used specifically by WebServices.
 Operation
mx.rpc.soap An Operation used specifically by WebServices.
 OrderedObject
mx.utils OrderedObject acts as a wrapper to Object to preserve the ordering of the properties as they are added.
 OverflowPolicy
flashx.textLayout.elements The OverflowPolicy class defines a set of constants for the overflowPolicy property of the IConfiguration class.
 OverlayDepth
spark.components.supportClasses The OverlayDepth class defines the default depth values for various overlay elements used by Flex.
 OverrideBase
mx.states The OverrideBase class is the base class for the override classes used by view states.
 Panel
mx.containers A Halo Panel container consists of a title bar, a caption, a border, and a content area for its children.
 Panel
spark.components The Panel class defines a container that includes a title bar, a caption, a border, and a content area for its children.
 PanelAccImpl
mx.accessibility PanelAccImpl is a subclass of AccessibilityImplementation which implements accessibility for the Panel class.
 PanelAccImpl
spark.accessibility PanelAccImpl is the accessibility implementation class for spark.components.Panel.
 PanelBorderSkin
mx.skins.sparkThe Spark skin class for the MX Panel component's border.
 PanelSkin
mx.skins.halo The PanelSkin class defines the skin for the Panel, TitleWindow, and Alert components.
 PanelSkin
spark.skins.sparkThe default skin class for a Spark Panel container.
 ParagraphElement
flashx.textLayout.elements The ParagraphElement class represents a paragraph in the text flow hierarchy.
 ParagraphFormattedElement
flashx.textLayout.elements The ParagraphFormattedElement class is an abstract base class for FlowElement classes that have paragraph properties.
 Parallel
mx.effects The Parallel effect plays multiple child effects at the same time.
 ParallelInstance
mx.effects.effectClasses The ParallelInstance class implements the instance class for the Parallel effect.
 PasteOperation
flashx.textLayout.operations The PasteOperation class encapsulates a paste operation.
 Path
spark.primitives The Path class is a filled graphic element that draws a series of path segments.
 Pause
mx.effects The Pause effect is useful when sequencing effects.
 PauseInstance
mx.effects.effectClasses The PauseInstance class implements the instance class for the Pause effect.
 PersistenceManager 
spark.managers The PersistenceManager class is a basic persistence manager that is backed by a local shared object named FxAppCache.
 PerspectiveAnimationNavigatorLayoutBase
spark.layouts.supportClasses 
 PerspectiveNavigatorLayoutBase
spark.layouts.supportClasses 
 PhoneFormatter
mx.formatters The PhoneFormatter class formats a valid number into a phone number format, including international configurations.
 PhoneNumberValidator
mx.validators The PhoneNumberValidator class validates that a string is a valid phone number.
 PieChart
mx.charts The PieChart control represents a data series as a standard pie chart.
 PieSeries
mx.charts.series The PieSeries class defines the data series for a PieChart control.
 PieSeriesItem
mx.charts.series.items Represents the information required to render a single wedge as part of a PieSeries.
 PieSeriesRenderData
mx.charts.series.renderData Represents all the information needed by the PieSeries to render.
 PlainTextExporter
flashx.textLayout.conversion Export converter for plain text format.
 Platform
mx.utils The Platform utility class contains several static methods to check what desktop or mobile platform the application is running on.
 PlayPauseButtonSkin
spark.skins.spark.mediaClasses.fullScreenThe default skin class for the play/pause button of a Spark VideoPlayer component while in one of the fullScreen skin states.
 PlayPauseButtonSkin
spark.skins.spark.mediaClasses.normalThe default skin class for the play/pause button of a Spark VideoPlayer component in the normal skin state.
 PlotChart
mx.charts The PlotChart control represents data with two values for each data point.
 PlotSeries
mx.charts.series Defines a data series for a PlotChart control.
 PlotSeriesItem
mx.charts.series.items Represents the information required to render an item as part of a PlotSeries.
 PlotSeriesRenderData
mx.charts.series.renderData Represents all the information needed by the PlotSeries to render.
 PNGEncoder
mx.graphics.codec The PNGEncoder class converts raw bitmap images into encoded images using Portable Network Graphics (PNG) lossless compression.
 PolarChart
mx.charts.chartClasses The PolarChart control serves as base class for circular charts based in polar coordinates.
 PolarDataCanvas
mx.charts.chartClasses PolarDataCanvas class enables user to use graphics API with respect to data coordinates instead of screen coordinates.
 PolarTransform
mx.charts.chartClasses The PolarTransform object represents a set of axes used to map data values to angle/distance polar coordinates and vice versa.
 PollingChannel
mx.messaging.channels The PollingChannel class provides the polling behavior that all polling channels in the messaging system require.
 PopUpAnchor
spark.components The PopUpAnchor component is used to position a control that pops up or drops down, such as a DropDownList component, in layout.
 PopUpButton
mx.controls The PopUpButton control adds a flexible pop-up control interface to a Button control.
 PopUpButtonSkin
mx.skins.halo The skin for all the states of a PopUpButton.
 PopUpButtonSkin
mx.skins.sparkThe Spark skin class for the MX PopUpButton component.
 PopUpEvent
spark.events The PopUpEvent class represents an event dispatched by the SkinnablePopUpContainer.
 PopUpIcon
mx.skins.halo The skin for all the states of the icon in a PopUpButton.
 PopUpManager
mx.managers The PopUpManager singleton class creates new top-level windows and places or removes those windows from the layer on top of all other visible windows.
 PopUpManagerChildList
mx.managers The PopUpManagerChildList class defines the constant values for the detail property of the PopUpManager addPopUp() and createPopUp() methods.
 PopUpMenuButton
mx.controls The PopUpMenuButton control creates a PopUpButton control with a main sub-button and a secondary sub-button.
 PopUpMenuIcon
mx.skins.halo The skin for all the states of the icon in a PopUpMenuButton.
 PopUpPosition
spark.components Enumerated type for the PopUpAnchor.popUpPosition property.
 PostCodeFormatter
org.apache.flex.formatters The PostCodeFormatter class formats a valid postcode based on a user set formatString or formats property.
 PostCodeValidator
org.apache.flex.validators The PostCodeValidator class validates that a String has the correct length and format for a post code.
 PostScaleAdapter
mx.containers.utilityClasses The PostScaleAdapter class is used as a compatibility layer for Flex 3 classes that rely on width, height, min, max, explicit, measured, and other properties to be determined after scaling is applied.
 Power
spark.effects.easing The Power class defines the easing functionality using a polynomial expression.
 Preloader
mx.preloaders The Preloader class is used by the SystemManager to monitor the download and initialization status of a Flex application.
 PrintAdvancedDataGrid
mx.printing The PrintAdvancedDataGrid control is an AdvancedDataGrid subclass that is styled to show a table with line borders and is optimized for printing.
 PrintDataGrid
mx.printing The PrintDataGrid control is a DataGrid subclass that is styled to show a table with line borders and is optimized for printing.
 PrintOLAPDataGrid
mx.printing The PrintOLAPDataGrid control is an OLAPDataGrid subclass that is styled to show a table with line borders and is optimized for printing.
 Producer
mx.messaging A Producer sends messages to a destination.
 ProgrammaticSkin
mx.skins This class is the base class for skin elements which draw themselves programmatically.
 ProgressBar
mx.controls The ProgressBar control provides a visual representation of the progress of a task over time.
 ProgressBar
spark.components Plain and simple progress bar
 ProgressBarDirection
mx.controls The ProgressBarDirection class defines the values for the direction property of the ProgressBar class.
 ProgressBarLabelPlacement
mx.controls The ProgressBarLabelPlacement class defines the values for the labelPlacement property of the ProgressBar class.
 ProgressBarMode
mx.controls The ProgressBarMode class defines the values for the mode property of the ProgressBar class.
 ProgressBarSkin
mx.skins.halo The skin for a ProgressBar.
 ProgressBarSkin
mx.skins.sparkThe Spark skin class for the MX ProgressBar component.
 ProgressBarSkin
spark.skins 
 ProgressBarTrackSkin
mx.skins.sparkThe Spark skin class for the MX ProgressBar component's track.
 ProgressIndeterminateSkin
mx.skins.halo The skin for the indeterminate state of a ProgressBar.
 ProgressIndeterminateSkin
mx.skins.spark The Spark skin for the indeterminate state of the MX ProgressBar component.
 ProgressMaskSkin
mx.skins.halo The skin for the mask of the ProgressBar's determinate and indeterminate bars.
 ProgressMaskSkin
mx.skins.spark The Spark skin for the mask of the MX ProgressBar component's determinate and indeterminate bars.
 ProgressTrackSkin
mx.skins.halo The skin for the track in a ProgressBar.
 PropertyChangeEvent
mx.events The PropertyChangeEvent class represents the event object passed to the event listener when one of the properties of an object has changed, and provides information about the change.
 PropertyChangeEventKind
mx.events The PropertyChangeEventKind class defines the constant values for the kind property of the PropertyChangeEvent class.
 PropertyChanges
mx.effects.effectClasses The PropertyChanges class defines the start and end values for a set of properties of a target component of a transition.
 Quadratic
mx.effects.easing The Quadratic class defines three easing functions to implement quadratic motion with Flex effect classes.
 QualifiedResourceManager
mx.rpc.xml QualifiedResourceManager is a helper class that simply maintains the order that resources were added and maps a target namespace to one or more resources.
 Quartic
mx.effects.easing The Quartic class defines three easing functions to implement motion with Flex effect classes.
 Quintic
mx.effects.easing The Quintic class defines three easing functions to implement motion with Flex effect classes.
 RadialGradient
mx.graphics The RadialGradient class lets you specify a gradual color transition in the fill color.
 RadialGradientStroke
mx.graphics The RadialGradientStroke class lets you specify a gradient filled stroke.
 RadioButton
mx.controls The RadioButton control lets the user make a single choice within a set of mutually exclusive choices.
 RadioButton
spark.components The RadioButton component allows the user make a single choice within a set of mutually exclusive choices.
 RadioButtonAccImpl
mx.accessibility RadioButtonAccImpl is a subclass of AccessibilityImplementation which implements accessibility for the RadioButton class.
 RadioButtonAccImpl
spark.accessibility RadioButtonAccImpl is the accessibility implementation class for spark.components.RadioButton.
 RadioButtonGroup
mx.controls The RadioButtonGroup control defines a group of RadioButton controls that act as a single mutually exclusive control; therefore, a user can select only one RadioButton control at a time.
 RadioButtonGroup
spark.components The RadioButtonGroup component defines a group of RadioButton components that act as a single mutually exclusive component; therefore, a user can select only one RadioButton component at a time.
 RadioButtonIcon
mx.skins.halo The skin for all the states of the icon in a RadioButton.
 RadioButtonSkin
mx.skins.sparkThe Spark skin class for the MX RadioButton component.
 RadioButtonSkin
spark.skins.mobile ActionScript-based skin for RadioButton controls in mobile applications.
 RadioButtonSkin
spark.skins.sparkThe default skin class for a Spark RadioButton component.
 Range
spark.components.supportClasses The Range class holds a value and an allowed range for that value, defined by minimum and maximum properties.
 Rect
spark.primitives The Rect class is a filled graphic element that draws a rectangle.
 RectangularBorder
mx.skins The RectangularBorder class is an abstract base class for various classes that draw rectangular borders around UIComponents.
 RectangularDropShadow
mx.graphics Drop shadows are typically created using the DropShadowFilter class.
 RectangularDropShadow
spark.primitives This class optimizes drop shadows for the common case.
 RedoOperation
flashx.textLayout.operations The RedoOperation class encapsulates a redo operation.
 RegExPatterns
spark.components.supportClasses This provides a means to standardize certain common regex patterns and functionality.
 RegExpValidationResult
mx.validators The RegExpValidator class dispatches the valid and invalid events.
 RegExpValidator
mx.validators The RegExpValidator class lets you use a regular expression to validate a field.
 RemoteObject
mx.rpc.remoting.mxml Use the <mx:RemoteObject> tag to represent an HTTPService object in an MXML file.
 RemoteObject
mx.rpc.remoting The RemoteObject class gives you access to classes on a remote application server.
 RemotingMessage
mx.messaging.messages RemotingMessages are used to send RPC requests to a remote endpoint.
 RemoveAction
spark.effects The RemoveAction class defines an action effect that corresponds to the RemoveChild property of a view state definition.
 RemoveActionInstance
spark.effects.supportClasses The RemoveActionInstance class implements the instance class for the RemoveAction effect.
 RemoveChild
mx.states The RemoveChild class removes a child display object, such as a component, from a container as part of a view state.
 RemoveChildAction
mx.effects The RemoveChildAction class defines an action effect that corresponds to the RemoveChild property of a view state definition.
 RemoveChildActionInstance
mx.effects.effectClasses The RemoveChildActionInstance class implements the instance class for the RemoveChildAction effect.
 RemoveItemAction
mx.effects The RemoveItemAction class defines an action effect that determines when the item renderer disappears from the control for the item renderer of an item being removed from a list-based control, such as List or TileList, or for an item that is replaced by a new item added to the control.
 RemoveItemActionInstance
mx.effects.effectClasses The RemoveItemActionInstance class implements the instance class for the RemoveChildAction effect.
 RenderData
mx.charts.chartClasses RenderData structures are used by chart elements to store all of the relevant values and data needed to fully render the chart.
 RendererExistenceEvent
spark.events The RendererExistenceEvent class represents events that are dispatched when a renderer of a Spark DataGroup is added or removed.
 RepeatBehavior
spark.effects.animation The RepeatBehavior class defines constants for use with repeatBehavior property of the Animate and Animation classes.
 Repeater
mx.core The Repeater class is the runtime object that corresponds to the <mx:Repeater> tag.
 Request
mx.events This is an event that is expects its data property to be set by a responding listener.
 Resize
mx.effects The Resize effect changes the width, height, or both dimensions of a component over a specified time interval.
 Resize
spark.effects The Resize effect changes the width, height, or both dimensions of a component over a specified time interval.
 ResizeEvent
mx.events Represents event objects that are dispatched when the size of a Flex component changes.
 ResizeInstance
mx.effects.effectClasses The ResizeInstance class implements the instance class for the Resize effect.
 ResizeInstance
spark.effects.supportClasses The ResizeInstance class implements the instance class for the Resize effect.
 ResizeMode
spark.components The ResizeMode class defines an enumeration of the modes a component uses to resize its children in the dimensions specified by the layout system.
 ResourceBundle
mx.resources Provides an implementation of the IResourceBundle interface.
 ResourceEvent
mx.events The ResourceEvent class represents an Event object that is dispatched when the ResourceManager loads the resource bundles in a resource module by calling the loadResourceModule() method.
 ResourceManager
mx.resources This class is used to get a single instance of the IResourceManager implementation.
 Responder
mx.rpc This class provides a default implementation of the mx.rpc.IResponder interface.
 RestoreButtonSkin
spark.skins.spark.windowChromeThe default skin class for the restore button in the title bar of the Spark WindowedApplication component and Spark Window component when you use Flex chrome.
 ResultEvent
mx.rpc.events The event that indicates an RPC operation has successfully returned a result.
 RGBInterpolator
spark.effects.interpolation The RGBInterpolator class provides interpolation between uint start and end values that represent RGB colors.
 RichEditableText
spark.components RichEditableText is a low-level UIComponent for displaying, scrolling, selecting, and editing richly-formatted text.
 RichEditableTextAccImpl
spark.accessibility RichEditableTextAccImpl is the accessibility implementation class for spark.components.RichEditableText.
 RichText
spark.components RichText is a low-level UIComponent that can display one or more lines of richly-formatted text and embedded images.
 RichTextEditor
mx.controlsThe RichTextEditor control lets users enter and format text.
 RolodexLayout
spark.layouts The RolodexLayout class arranges the layout elements in a depth sequence, front to back, with optional depths between the elements and optional aligment of the sequence of elements.
 Rotate
mx.effects The Rotate effect rotates a component around a specified point.
 Rotate
spark.effects The Rotate effect rotates a target object in the x, y plane around the transform center.
 Rotate3D
spark.effects The Rotate3D class rotate a target object in three dimensions around the x, y, or z axes.
 RotateInstance
mx.effects.effectClasses The RotateInstance class implements the instance class for the Rotate effect.
 RoundedRectangle
mx.geom RoundedRectangle represents a Rectangle with curved corners
 RowAlign
spark.layouts The RowAlign class defines the possible values for the rowAlign property of the TileLayout class.
 RpcClassAliasInitializer
mx.utils The RpcClassAliasInitializer class registers all classes for AMF serialization needed by the Flex RPC library.
 RPCObjectUtil
mx.utils The RPCObjectUtil class is a subset of ObjectUtil, removing methods that create dependency issues when RPC messages are in a bootstrap loader.
 RPCStringUtil
mx.utils The RPCStringUtil class is a subset of StringUtil, removing methods that create dependency issues when RPC messages are in a bootstrap loader.
 RPCUIDUtil
mx.utils The RPCUIDUtil class is a copy of UIDUtil without some functions that cause dependency problems when RPC messages are put in a bootstrap loader.
 RSLData
mx.core A Class that describes configuration data for an RSL.
 RSLEvent
mx.events The RSLEvent class represents an event object used by the DownloadProgressBar class when an RSL is being downloaded by the Preloader class.
 RuntimeDPIProvider
mx.core The RuntimeDPIProvider class provides the default mapping of similar device DPI values into predefined DPI classes.
 SandboxMouseEvent
mx.events This is an event sent between applications in different security sandboxes to notify listeners about mouse activity in another security sandbox.
 SaturationShader
mx.graphics.shaderClasses Creates a blend shader that is equivalent to the 'Saturation' blend mode for RGB premultiplied colors available in Adobe Creative Suite tools.
 Scale
spark.effects The Scale effect scales a target object in the x and y directions around the transform center.
 Scale3D
spark.effects The Scale3D class scales a target object in three dimensions around the transform center.
 SchemaTypeRegistry
mx.rpc.xml XMLDecoder uses this class to map an XML Schema type by QName to an ActionScript Class so that it can create strongly typed objects when decoding content.
 ScrollableStageText 
spark.components.supportClasses The ScrollableStageText class is a text primitive for use in ActionScript skins which is used to present the user with a native text input field.
 ScrollArrowSkin
mx.skins.halo The skin for all the states of the up or down button in a ScrollBar.
 ScrollBar
mx.controls.scrollClasses The ScrollBar class is the base class for the HScrollBar and VScrollBar controls.
 ScrollBarBase
spark.components.supportClasses The ScrollBarBase class helps to position the portion of data that is displayed when there is too much data to fit in a display area.
 ScrollBarDirection
mx.controls.scrollClasses The ScrollBarDirection class defines the values for the direction property of the ScrollBar control.
 ScrollBarDownButtonSkin
mx.skins.sparkThe Spark skin class for the down button of the MX ScrollBar component.
 ScrollBarDownButtonSkin
spark.skins.sparkThe default skin class for down button of the Spark ScrollBar component.
 ScrollBarLeftButtonSkin
spark.skins.sparkThe default skin class for left button of the Spark ScrollBar component.
 ScrollBarRightButtonSkin
spark.skins.sparkThe default skin class for right button of the Spark ScrollBar component.
 ScrollBarThumbSkin
mx.skins.sparkThe Spark skin class for the thumb of the MX ScrollBar component.
 ScrollBarTrackSkin
mx.skins.sparkThe Spark skin class for the track of the MX ScrollBar component.
 ScrollBarUpButtonSkin
mx.skins.sparkThe Spark skin class for the up button of the MX ScrollBar component.
 ScrollBarUpButtonSkin
spark.skins.sparkThe default skin class for up button of the Spark ScrollBar component.
 ScrollControlBase
mx.core The ScrollControlBase class is the base class for controls with scroll bars.
 Scroller
spark.components The Scroller component displays a single scrollable component, called a viewport, and horizontal and vertical scroll bars.
 ScrollerSkin
spark.skins.sparkThe default skin class for the Spark Scroller component.
 ScrollEvent
flashx.textLayout.events Represents events that are dispatched when the TextFlow does automatic scrolling.
 ScrollEvent
mx.events Represents events that are dispatched by the ScrollBar class.
 ScrollEventDetail
mx.events Constants for the values of the detail property of a ScrollEvent.
 ScrollEventDirection
flashx.textLayout.events Constants for the values of the direction property of a ScrollEvent.
 ScrollEventDirection
mx.events Constants for the values of the direction property of a ScrollEvent.
 ScrollingStageTextAreaSkin 
spark.skins.mobile ActionScript-based skin for TextArea controls in mobile applications that uses a ScrollableStageText class for the text display.
 ScrollingStageTextInputSkin 
spark.skins.mobile ActionScript-based skin for TextInput controls in mobile applications that uses a ScrollableStageText class for the text display and can be used in scrollable forms while allowing precise control of keyboard input.
 ScrollPolicy
flashx.textLayout.container The ScrollPolicy class is an enumeration class that defines values for setting the horizontalScrollPolicy and verticalScrollPolicy properties of the ContainerController class, which defines a text flow container.
 ScrollPolicy
mx.core Values for the horizontalScrollPolicy and verticalScrollPolicy properties of the Container and ScrollControlBase classes.
 ScrollSnappingMode 
spark.components The ScrollSnappingMode class defines the enumeration values for the scrollSnappingMode property of the List and Scroller classes.
 ScrollThumb
mx.controls.scrollClasses The ScrollThumb class defines the thumb of a ScrollBar control.
 ScrollThumbSkin
mx.skins.halo The skin for all the states of the thumb in a ScrollBar.
 ScrollTrackSkin
mx.skins.halo The skin for the track in a ScrollBar.
 ScrubBar
spark.components.mediaClasses The VideoScrubBar class defines a video timeline that shows the current play head location in the video, the amount of the video previously played, and the loaded in part of the video.
 ScrubBarSkin
spark.skins.spark.mediaClasses.fullScreenThe default skin class for the scrub bar of a Spark VideoPlayer component while in one of the fullScreen skin states.
 ScrubBarSkin
spark.skins.spark.mediaClasses.normalThe default skin class for the scrub bar of a Spark VideoPlayer component in the normal skin state.
 ScrubBarThumbSkin
spark.skins.spark.mediaClasses.fullScreenThe default skin class for the scrub bar thumb part of a Spark VideoPlayer component while in one of the fullScreen skin states.
 ScrubBarThumbSkin
spark.skins.spark.mediaClasses.normalThe default skin class for the scrub bar thumb part of a Spark VideoPlayer component in the normal skin state.
 ScrubBarTrackSkin
spark.skins.spark.mediaClasses.fullScreenThe default skin class for the scrub bar track part of a Spark VideoPlayer component while in one of the fullScreen skin states.
 ScrubBarTrackSkin
spark.skins.spark.mediaClasses.normalThe default skin class for the scrub bar track part of a Spark VideoPlayer component in the normal skin state.
 SecureAMFChannel
mx.messaging.channels The SecureAMFChannel class is identical to the AMFChannel class except that it uses a secure protocol, HTTPS, to send messages to an AMF endpoint.
 SecureHTTPChannel
mx.messaging.channels The SecureHTTPChannel class is identical to the HTTPChannel class except that it uses a secure protocol, HTTPS, to send messages to an HTTP endpoint.
 SecureStreamingAMFChannel
mx.messaging.channels The SecureStreamingAMFChannel class is identical to the StreamingAMFChannel class except that it uses a secure protocol, HTTPS, to send messages to an AMF endpoint.
 SecureStreamingHTTPChannel
mx.messaging.channels The SecureStreamingHTTPChannel class is identical to the StreamingHTTPChannel class except that it uses a secure protocol, HTTPS, to send messages to an HTTP endpoint.
 SecurityUtil
mx.utils Utilities for working with security-related issues.
 SelectableButtonSkinBase
spark.skins.mobile.supportClasses ActionScript-based skin for toggle buttons.
 SelectionEvent
flashx.textLayout.events A TextFlow instance dispatches a SelectionEvent object when an EditManager or SelectionManager changes or selects a range of text.
 SelectionFormat
flashx.textLayout.edit The SelectionFormat class defines the properties of a selection highlight.
 SelectionManager
flashx.textLayout.edit The SelectionManager class manages text selection in a text flow.
 SelectionState
flashx.textLayout.edit The SelectionState class represents a selection in a text flow.
 Sequence
mx.effects The Sequence effect plays multiple child effects one after the other, in the order in which they are added.
 SequenceInstance
mx.effects.effectClasses The SequenceInstance class implements the instance class for the Sequence effect.
 SerializationFilter
mx.rpc.http This class is useful for framework developers wishing to plug in or modify the HTTP services to use a new serialization format.
 Series
mx.charts.chartClasses The Series class is the base class for the classes that let you specify a data series for a chart control.
 SeriesEffect
mx.charts.effects The base class for chart effects.
 SeriesEffectInstance
mx.charts.effects.effectClasses The SeriesEffectInstance class implements the base instance class for the chart series effects.
 SeriesInterpolate
mx.charts.effects The SeriesInterpolate effect moves the graphics that represent the existing data in a series to the new points.
 SeriesInterpolateInstance
mx.charts.effects.effectClasses The SeriesInterpolateInstance class implements the instance class for the SeriesInterpolate effect.
 SeriesSlide
mx.charts.effects The SeriesSlide effect slides a data series into and out of the chart's boundaries.
 SeriesSlideInstance
mx.charts.effects.effectClasses The SeriesSlideInstance class implements the instance class for the SeriesSlide effect.
 SeriesZoom
mx.charts.effects The SeriesZoom effect implodes and explodes chart data into and out of the focal point that you specify.
 SeriesZoomInstance
mx.charts.effects.effectClasses The SeriesZoomInstance class implements the instance class for the SeriesZoom effect.
 ServerConfig
mx.messaging.config This class provides access to the server messaging configuration information.
 SetAction
spark.effects The SetAction class defines an action effect that sets the value of a named property or style.
 SetActionInstance
spark.effects.supportClasses The SetActionInstance class implements the instance class for the SetAction effect.
 SetEventHandler
mx.states The SetEventHandler class specifies an event handler that is active only during a particular view state.
 SetProperty
mx.states The SetProperty class specifies a property value that is in effect only during the parent view state.
 SetPropertyAction
mx.effects The SetPropertyAction class defines an action effect that corresponds to the SetProperty property of a view state definition.
 SetPropertyActionInstance
mx.effects.effectClasses The SetPropertyActionInstance class implements the instance class for the SetPropertyAction effect.
 SetStyle
mx.states The SetStyle class specifies a style that is in effect only during the parent view state.
 SetStyleAction
mx.effects The SetStyleAction class defines an action effect that corresponds to the SetStyle property of a view state definition.
 SetStyleActionInstance
mx.effects.effectClasses The SetStyleActionInstance class implements the instance class for the SetStyleAction effect.
 SHA256
mx.utils Implementation of SHA-256 hash algorithm as described in Federal Information Processing Standards Publication 180-2 at http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
 ShaderFilter
spark.filters The Flex ShaderFilter class abstracts away many of the details of using the Flash ShaderFilter, Shader, and ShaderData classes to apply a Pixel Bender shader as a filter.
 ShadowBoxItemRenderer
mx.charts.renderers A simple chart itemRenderer implementation that fills a rectangular area and surrounds it with a drop shadow.
 ShadowLineRenderer
mx.charts.renderers An implementation of a line segment renderer that is used by LineSeries objects.
 SimpleMotionPath
spark.effects.animation The SimpleMotionPath class specifies the name of a property, and the values that that property takes over time, for instances of the Animate effect.
 SimpleXMLDecoder
mx.rpc.xml The SimpleXMLDecoder class deserialize XML into a graph of ActionScript objects.
 SimpleXMLEncoder
mx.rpc.xml The SimpleXMLEncoder class takes ActionScript Objects and encodes them to XML using default serialization.
 Sine
mx.effects.easing The Sine class defines three easing functions to implement motion with Flex effect classes, where the motion is defined by a sine wave.
 Sine
spark.effects.easing The Sine class defines easing functionality using a Sine function.
 Skin
spark.components.supportClasses The Skin class defines the base class for all skins used by skinnable components.
 SkinnableComponent
spark.components.supportClasses The SkinnableComponent class defines the base class for skinnable components.
 SkinnableContainer
spark.components The SkinnableContainer class is the base class for skinnable containers that have visual content.
 SkinnableContainerBase
spark.components.supportClasses Base class for skinnable container components.
 SkinnableContainerSkin
spark.skins.mobile ActionScript-based skin for SkinnableContainer in mobile applications.
 SkinnableContainerSkin
spark.skins.sparkThe default skin class for a Spark SkinnableContainer container.
 SkinnableDataContainer
spark.components The SkinnableDataContainer class is the base container class for data items.
 SkinnableDataContainerSkin
spark.skins.sparkThe default skin class for the Spark SkinnableDataContainer container.
 SkinnablePopUpContainer
spark.components The SkinnablePopUpContainer class is a SkinnableContainer that functions as a pop-up.
 SkinnablePopUpContainerSkin
spark.skins.sparkThe default skin class for a Spark SkinnablePopUpContainer container.
 SkinnableTextBase
spark.components.supportClasses The base class for skinnable components, such as the Spark TextInput and TextArea, that include an instance of IEditableText in their skin to provide text display, scrolling, selection, and editing.
 Slider
mx.controls.sliderClasses The Slider class is the base class for the Flex slider controls.
 SliderAccImpl
mx.accessibility SliderAccImpl is a subclass of AccessibilityImplementation which implements accessibility for the Slider class.
 SliderBase
spark.components.supportClasses The SliderBase class lets users select a value by moving a slider thumb between the end points of the slider track.
 SliderBaseAccImpl
spark.accessibility SliderBaseAccImpl is the accessibility implementation class for spark.components.supportClasses.SliderBase.
 SliderDataTip
mx.controls.sliderClasses The SliderDataTip class defines the tooltip used in the mx.controls.Slider control.
 SliderDirection
mx.controls.sliderClasses The SliderDirection class defines the constant values for the direction property of the Slider class.
 SliderEvent
mx.events The SliderEvent class represents the event object passed to the event listener for the change, thumbDrag, thumbPress, and thumbRelease events of the HSlider and VSlider classes.
 SliderEventClickTarget
mx.events The SliderEventClickTarget class defines the constants for the values of the clickTarget property of the SliderEvent class.
 SliderHighlightSkin
mx.skins.halo The skin for the highlighted state of the track of a Slider.
 SliderLabel
mx.controls.sliderClasses The SliderLabel class defines the label used in the mx.controls.Slider component.
 SliderThumb
mx.controls.sliderClasses The SliderThumb class represents a thumb of a Slider control.
 SliderThumbSkin
mx.skins.halo The skin for all the states of a thumb in a Slider.
 SliderThumbSkin
mx.skins.sparkThe Spark skin class for the thumb of the MX Slider component.
 SliderTrackHighlightSkin
mx.skins.sparkThe Spark skin class for the track highlight of the MX Slider component.
 SliderTrackSkin
mx.skins.halo The skin for the track in a Slider.
 SliderTrackSkin
mx.skins.sparkThe Spark skin class for the track of the MX Slider component.
 SlideViewTransition 
spark.transitions The SlideViewTransition class performs a simple slide transition for views.
 SlideViewTransitionMode 
spark.transitions The SlideViewTransitionMode class provides the constants used to specify the type of a slide transition.
 SOAPFault
mx.rpc.soap A subclass of mx.rpc.Fault that provides SOAP specific information from a SOAP envelope Fault element.
 SOAPHeader
mx.rpc.soap You use a SOAPHeader to specify the headers that need to be added to a SOAP envelope of a WebService Operation request.
 SOAPMessage
mx.messaging.messages SOAPMessages are similar to HTTPRequestMessages.
 SOAPResult
mx.rpc.soap A context for the result of a SOAP based Remote Procedure Call.
 SocialSecurityValidator
mx.validators The SocialSecurityValidator class validates that a String is a valid United States Social Security number.
 SoftLightShader
mx.graphics.shaderClasses Creates a blend shader that is equivalent to the 'Soft Light' blend mode for RGB premultiplied colors available in Adobe Creative Suite tools.
 SolidColor
mx.graphics Defines a representation for a color, including a color and an alpha value.
 SolidColorStroke
mx.graphics The SolidColorStroke class defines the properties for a line.
 Sort
mx.collections Provides the sorting information required to establish a sort on an existing view (ICollectionView interface or class that implements the interface).
 Sort
spark.collections Provides the sorting information required to establish a sort on an existing view (ICollectionView interface or class that implements the interface).
 SortError
mx.collections.errors This error is thrown when a Sort class is not configured properly; for example, if the find criteria are invalid.
 SortField
mx.collections Provides the sorting information required to establish a sort on a field or property in a collection view.
 SortField
spark.collections Provides the sorting information required to establish a sort on a field or property in a collection view.
 SortFieldCompareTypes
mx.collections The SortFieldCompareTypes class defines the valid constant values for the sortCompareType property of the SortField and GridColumn.
 SortFieldCompareTypes
spark.collections The SortFieldCompareTypes class defines the valid constant values for the sortCompareType property of the SortField and GridColumn.
 SortInfo
mx.controls.advancedDataGridClasses The SortInfo class defines information about the sorting of a column of the AdvancedDataGrid control.
 SortingCollator
spark.globalization The SortingCollator class provides locale-sensitve string comparison capabilities with inital settings suitable for linguistic sorting purposes such as sorting a list of text strings that are displayed to an end-user.
 SoundAsset
mx.core SoundAsset is a subclass of the flash.media.Sound class which represents sounds that you embed in a Flex application.
 SoundEffect
mx.effects The SoundEffect class plays an MP3 audio file.
 SoundEffectInstance
mx.effects.effectClasses The SoundEffectInstance class implements the instance class for the SoundEffect effect.
 Spacer
mx.controls The Spacer control helps you lay out children within a parent container.
 SpanElement
flashx.textLayout.elements The SpanElement class represents a run of text that has a single set of formatting attributes applied.
 SparkButtonSkin
spark.skins Base class for Spark button skins.
 SparkChromeWindowedApplicationSkin
spark.skins.sparkA skin class for the Spark WindowedApplication component.
 SparkDownloadProgressBar
mx.preloaders The SparkDownloadProgressBar class displays download progress.
 SparkSkin
spark.skins Base class for Spark skins.
 SparkSkinForHalo
mx.skins.spark The SparkSkinForHalo class is the base class for Spark skins for MX components.
 SpecialCharacterElement
flashx.textLayout.elements The SpecialCharacterElement class is an abstract base class for elements that represent special characters.
 Spinner
spark.components A Spinner component selects a value from an ordered set.
 SpinnerAccImpl
spark.accessibility SpinnerAccImpl is the accessibility implementation class for spark.components.Spinner.
 SpinnerDecrementButtonSkin
spark.skins.sparkThe default skin class for the down button of a Spark Spinner component.
 SpinnerIncrementButtonSkin
spark.skins.sparkThe default skin class for the up button of a Spark Spinner component.
 SpinnerList 
spark.components The SpinnerList component displays a list of items.
 SpinnerListContainer 
spark.components Container for one or more SpinnerList controls.
 SpinnerListContainerSkin 
spark.skins.mobile ActionScript-based skin for the SpinnerListContainer in mobile applications.
 SpinnerListItemRenderer 
spark.components The SpinnerListItemRenderer class defines the default item renderer for a SpinnerList control in the mobile theme.
 SpinnerListScrollerSkin 
spark.skins.mobileThe default skin class for the Spark Scroller that is used by the SpinnerList component.
 SpinnerListSkin 
spark.skins.mobile ActionScript-based skin for the SpinnerList in mobile applications.
 SpinnerSkin
spark.skins.sparkThe default skin class for the Spark Spinner component.
 SplashScreen
spark.preloaders The SplashScreen class is the default preloader for Mobile Flex applications.
 SplashScreenImage 
spark.preloaders Use the SplashScreenImage class to specify different splash screen images based on characteristics of a mobile device.
 SplashScreenImageSource 
spark.preloaders Use the SplashScreenImageSource class to specify a Class (typically an embedded image) to be displayed as splash screen at a particular device configuration such as DPI, orientation and resolution.
 SplitElementOperation
flashx.textLayout.operations The SplitElementOperation class encapsulates a change that splits any FlowGroupElement into two elements.
 SplitParagraphOperation
flashx.textLayout.operations The SplitParagraphOperation class encapsulates a change that splits a paragraph into two elements.
 SplitViewNavigator 
spark.components The SplitViewNavigator container displays multiple ViewNavigator or TabbedViewNavigator components at the same time in a single container.
 SplitViewNavigatorSkin 
spark.skins.mobile The default skin for the SplitViewNavigator component.
 SpriteAsset
mx.core SpriteAsset is a subclass of the flash.display.Sprite class which represents vector graphic images that you embed in an application.
 SpriteVisualElement
spark.core The SpriteVisualElement class is a light-weight Sprite-based implemention of the IVisualElement interface.
 StackedFormHeadingSkin
spark.skins.sparkAn alternate skin class for the Spark FormHeading component.
 StackedFormItemSkin
spark.skins.sparkAn alternate skin class for the Spark FormItem component which positions the label above the content.
 StackedFormSkin
spark.skins.sparkAn alternate skin class for the Spark Form container.
 StackedSeries
mx.charts.chartClasses Stacked Series serves as the common base class for all of the stacking set series (BarSet, ColumnSet, and AreaSet).
 StackLayout
spark.layouts An StackLayout class shows a single element at a time..
 StageTextAreaSkin 
spark.skins.mobile ActionScript-based skin for TextArea controls in mobile applications that uses a StyleableStageText class for the text display.
 StageTextInputSkin 
spark.skins.mobile ActionScript-based skin for TextInput controls in mobile applications that uses a StyleableStageText class for the text input.
 StageTextSkinBase 
spark.skins.mobile.supportClasses ActionScript-based skin for text input controls in mobile applications.
 StandardFlowComposer
flashx.textLayout.compose The StandardFlowComposer class provides a standard composer and container manager.
 State
mx.states The State class defines a view state, a particular view of a component.
 StateChangeEvent
mx.events The StateChangeEvent class represents an event that is dispatched when the currentState property of a component changes.
 StatusBar 
mx.core.windowClasses The default status bar for a WindowedApplication or a Window.
 StatusBarBackgroundSkin 
mx.skins.halo The skin for the StatusBar of a WindowedApplication or Window.
 StatusChangeEvent
flashx.textLayout.events A TextFlow instance dispatches this event when the status of a FlowElement changes.
 StepperDecrButtonSkin
mx.skins.sparkThe Spark skin class for the down button of the MX NumericStepper component.
 StepperIncrButtonSkin
mx.skins.sparkThe Spark skin class for the up button of the MX NumericStepper component.
 StreamingAMFChannel
mx.messaging.channels The StreamingAMFChannel class provides support for messaging and offers a different push model than the base AMFChannel.
 StreamingConnectionHandler
mx.messaging.channels A helper class that is used by the streaming channels to open an internal HTTP connection to the server that is held open to allow the server to stream data down to the client with no poll overhead.
 StreamingHTTPChannel
mx.messaging.channels The StreamingHTTPChannel class provides support for messaging and offers a different push model than the base HTTPChannel.
 StringTextLineFactory
flashx.textLayout.factory The StringTextLineFactory class provides a simple way to create TextLines from a string.
 StringTools
spark.globalization The StringTools class provides locale-sensitve case conversion methods.
 StringUtil
mx.utils The StringUtil utility class is an all-static class with methods for working with String objects within Flex.
 StringValidator
mx.validators The StringValidator class validates that the length of a String is within a specified range.
 Stroke
mx.graphics The Stroke class defines the properties for a line.
 StrokedElement
spark.primitives.supportClasses The StrokedElement class is the base class for all graphic elements that have a stroke, including Line, Ellipse, Path, and Rect.
 StyleableStageText 
spark.components.supportClasses The StyleableStageText class is a text primitive for use in ActionScript skins which is used to present the user with a native text input field.
 StyleableTextField 
spark.components.supportClasses The StyleableTextField class is a text primitive for use in ActionScript skins and item renderers.
 StyleEvent
mx.events The StyleEvent class represents an event object used by the StyleManager class when a style SWF is being downloaded.
 StyleManager
mx.styles The StyleManager class manages the following: Which CSS style properties the class inherits Which style properties are colors, and therefore get special handling A list of strings that are aliases for color values
 StyleProxy
mx.styles Wraps an object that implements the IAdvancedStyleClient interface.
 SubParagraphGroupElement
flashx.textLayout.elements The SubParagraphGroupElement is a grouping element for FlowLeafElements and other classes that extend SubParagraphGroupElementBase.
 SubParagraphGroupElementBase
flashx.textLayout.elements The SubParagraphGroupElementBase class groups FlowLeafElements together.
 SubscriptionInfo
mx.messaging This is the class used for elements of the ArrayCollection subscriptions property in the MultiTopicConsumer property.
 Suffix
flashx.textLayout.formats Defines values for setting the suffix property of a ListMarkerFormat.
 SumAggregator
mx.olap.aggregators The SumAggregator class implements the sum aggregator.
 SummaryField
mx.collections The SummaryField class represents a single property in a SummaryRow instance.
 SummaryField2
mx.collections The SummaryField2 class represents a single property in a SummaryRow instance.
 SummaryObject
mx.collections The SummaryObject class defines the object used to store information when performing custom data summaries on grouped data.
 SummaryRow
mx.collections The SummaryRow class represents a summary row of the AdvancedDataGrid.
 SwatchPanelSkin
mx.skins.halo The skin for the border of a SwatchPanel.
 SwatchSkin
mx.skins.halo The skin used for all color swatches in a ColorPicker.
 SWFBridgeEvent
mx.events This is an event that is sent between applications that are in different security sandboxes.
 SWFBridgeGroup
mx.core A SWFBridgeGroup represents all of the sandbox bridges that an application needs to communicate with its parent and children.
 SWFBridgeRequest
mx.events An event that is sent between applications through the sharedEvents dispatcher that exists between two application SWFs.
 SWFLoader
mx.controls The SWFLoader control loads and displays a specified SWF file.
 SwitchSymbolFormatter
mx.formatters The SwitchSymbolFormatter class is a utility class that you can use when creating custom formatters.
 SystemManager
mx.managers The SystemManager class manages an application window.
 TabBar
mx.controls The TabBar control lets you create a horizontal or vertical group of tab navigation items by defining the labels and data associated with each tab.
 TabBar
spark.components The TabBar class displays a set of identical tabs.
 TabBarAccImpl
mx.accessibility TabBarAccImpl is a subclass of AccessibilityImplementation which implements accessibility for the TabBar class.
 TabBarAccImpl
spark.accessibility TabBarAccImpl is the accessibility implementation class for spark.components.TabBar.
 TabBarButtonSkin
spark.skins.sparkThe default skin class for Spark TabBar buttons.
 TabBarSkin
spark.skins.sparkThe default skin class for the Spark TabBar component.
 TabbedViewNavigator 
spark.components The TabbedViewNavigator class is a container that manages a collection of view navigator containers.
 TabbedViewNavigatorApplication 
spark.components The TabbedViewNavigatorApplication container defines an application with multiple sections.
 TabbedViewNavigatorApplicationSkin 
spark.skins.mobile The ActionScript-based skin used for TabbedViewNavigatorApplication.
 TabbedViewNavigatorSkin 
spark.skins.mobile The ActionScript-based skin used for TabbedViewNavigator components.
 TabbedViewNavigatorTabBarFirstTabSkin
spark.skins.mobile Skin for the left-most button in the TabbedViewNavigator ButtonBar skin part.
 TabbedViewNavigatorTabBarHorizontalLayout
spark.skins.mobile.supportClasses The TabbedViewNavigatorButtonBarHorizontalLayout class is a layout specifically designed for the TabbedViewNavigator.
 TabbedViewNavigatorTabBarLastTabSkin
spark.skins.mobile Skin for used for middle and the right-most ButtonBarButton in the TabbedViewNavigator ButtonBar skin.
 TabbedViewNavigatorTabBarSkin
spark.skins.mobile The default skin class for the Spark TabbedViewNavigator tabBar skin part.
 TabbedViewNavigatorTabBarTabSkinBase
spark.skins.mobile.supportClasses ButtonBarButton skin base class for TabbedViewNavigator ButtonBarButtons.
 TabElement
flashx.textLayout.elements The TabElement class represents a <tab/> in the text flow.
 TableBodyElement
flashx.textLayout.elements TableBodyElement is an item in a TableElement.
 TableColElement
flashx.textLayout.elements TableColElement is an item in a TableElement.
 TableColGroupElement
flashx.textLayout.elements TableColGroupElement is an item in a TableElement.
 TableDataCellElement
flashx.textLayout.elements TableDataCellElement is an item in a TableRowElement.
 TableElement
flashx.textLayout.elements The TableElement class is used for grouping together items into a table.
 TableFormattedElement
flashx.textLayout.elements 
 TableFrame
flashx.textLayout.formats Defines values for the TableFrame property of the TextLayoutFormat class.
 TableRowElement
flashx.textLayout.elements TableRowElement is an item in a TableElement.
 TableRules
flashx.textLayout.formats Defines values for the TableRules property of the TextLayoutFormat class.
 TabNavigator
mx.containers The MX TabNavigator container extends the MX ViewStack container by including a TabBar container for navigating between its child containers.
 TabNavigatorSkin
spark.skinsThe default skin class for a Spark Navigator container.
 TabSkin
mx.skins.halo The skin for all the states of a Tab in a TabNavigator or TabBar.
 TabSkin
mx.skins.sparkThe Spark skin class for the tabs of the MX TabNavigator container.
 TabStopFormat
flashx.textLayout.formats The TabStopFormat class represents the properties of a tab stop in a paragraph.
 TCYElement
flashx.textLayout.elements The TCYElement (Tatechuuyoko - ta-tae-chu-yo-ko) class is a subclass of SubParagraphGroupElementBase that causes text to draw horizontally within a vertical line.
 Text
mx.controls The Text control displays multiline, noneditable text.
 TextAlign
flashx.textLayout.formats Defines values for setting the textAlign and textAlignLast properties of the TextLayoutFormat class.
 TextArea
mx.controls The TextArea control is a multiline text field with a border and optional scroll bars.
 TextArea
spark.components TextArea is a text-entry control that lets users enter and edit multiple lines of formatted text.
 TextAreaHScrollBarSkin
spark.skins.mobile The default skin class for the Spark TextAreaHScrollBar component in mobile applications.
 TextAreaHScrollBarThumbSkin 
spark.skins.mobile The ActionScript-based skin used for TextAreaHScrollBarThumb components in mobile applications.
 TextAreaSkin
spark.skins.mobile ActionScript-based skin for TextArea components in mobile applications.
 TextAreaSkin
spark.skins.sparkThe default skin class for Spark TextArea component.
 TextAreaVScrollBarSkin
spark.skins.mobile ActionScript-based skin for TextAreaVScrollBar components in mobile applications.
 TextAreaVScrollBarThumbSkin 
spark.skins.mobile The ActionScript-based skin used for TextAreaHScrollBarThumb components in mobile applications.
 TextBase
spark.components.supportClasses The base class for Spark text controls such as Label and RichText which display text using CSS styles for the default format.
 TextBaseAccImpl
spark.accessibility TextBaseAccImpl is the accessibility implementation class for spark.components.TextBase.
 TextClipboard
flashx.textLayout.edit The TextClipboard class copies and pastes TextScrap objects to and from the system clipboard.
 TextContainerManager
flashx.textLayout.container Manages text in a container.
 TextConverter
flashx.textLayout.conversion This is the gateway class for handling import and export.
 TextDecoration
flashx.textLayout.formats Defines values for the textDecoration property of the TextLayoutFormat class.
 TextFieldAsset
mx.core TextFieldAsset is a subclass of the flash.text.TextField class which represents TextField symbols that you embed in a Flex application from a SWF file produced by Flash.
 TextFlow
flashx.textLayout.elements The TextFlow class is responsible for managing all the text content of a story.
 TextFlowLine
flashx.textLayout.compose The TextFlowLine class represents a single line of text in a text flow.
 TextFlowLineLocation
flashx.textLayout.compose The TextFlowLineLocation class is an enumeration class that defines constants for specifying the location of a line within a paragraph.
 TextFlowTextLineFactory
flashx.textLayout.factory The TextFlowTextLineFactory class provides a simple way to create TextLines for displaying text from a text flow.
 TextFlowUtil
spark.utils TextFlowUtil is a utility class which provides methods for importing a TextFlow from, and exporting a TextFlow to, the markup language used by the Text Layout Framework.
 TextInput
mx.controls The TextInput control is a single-line text field that is optionally editable.
 TextInput
spark.components TextInput is a text-entry control that lets users enter and edit a single line of uniformly-formatted text.
 TextInputBorderSkin
mx.skins.sparkThe Spark skin class for the border of the MX TextInput component.
 TextInputOperation 
spark.components.supportClasses The TextInputOperation class represents a text input operation.
 TextInputSkin
spark.skins.mobile ActionScript-based skin for TextInput controls in mobile applications.
 TextInputSkin
spark.skins.sparkThe default skin class for Spark TextInput component.
 TextJustify
flashx.textLayout.formats Defines values for setting the textJustify property of the TextLayoutFormat class.
 TextLayoutEvent
flashx.textLayout.events A TextLayoutEvent instance represents an event, such as the TextLayoutEvent.SCROLL event, that does not require custom properties.
 TextLayoutFormat
flashx.textLayout.formats The TextLayoutFormat class holds all of the text layout properties.
 TextLayoutVersion
flashx.textLayout This class controls the backward-compatibility of the framework.
 TextLineFactoryBase
flashx.textLayout.factory The TextLineFactoryBase class serves as the base class for the Text Layout Framework text line factories.
 TextLineRecycler
flashx.textLayout.compose The TextLineRecycler class provides support for recycling of TextLines.
 TextOperationEvent
spark.events The TextOperationEvent class represents events that are dispatched when text content changes due to user operations such as inserting characters, backspacing, pasting, or changing text attributes.
 TextRange
flashx.textLayout.elements A read only class that describes a range of contiguous text.
 TextRange
mx.controls.textClasses The TextRange class provides properties that select and format a range of text in the Label, Text, TextArea, TextEditor, and RichTextEditor controls.
 TextScrap
flashx.textLayout.edit The TextScrap class represents a fragment of a text flow.
 TextSelectionHighlighting
spark.components This class specifies the allowed values for the selectionHighlighting property of the RichEditableText control, and controls that use RichEditableText as a subcomponent (Spark TextInput and Spark TextArea).
 TextSkinBase
spark.skins.mobile.supportClasses ActionScript-based skin for text input controls in mobile applications that uses a StyleableTextField class for the text display.
 Tile
mx.containers A Halo Tile container lays out its children in a grid of equal-sized cells.
 TileBase
mx.controls.listClasses The TileBase class is the base class for controls that display data items in a sequence of rows and columns.
 TileBaseDirection
mx.controls.listClasses Values for the direction property of the TileList component.
 TileDirection
mx.containers The TileDirection class defines the constant values for the direction property of the Tile container.
 TileGroup
spark.components The TileGroup container is an instance of the Group container that uses the TileLayout class.
 TileLayout
spark.layouts The TileLayout class arranges layout elements in columns and rows of equally-sized cells.
 TileList
mx.controls The TileList control displays a number of items laid out in tiles.
 TileListItemRenderer
mx.controls.listClasses The TileListItemRenderer class defines the default item renderer for the HorizontalList and TileList controls.
 TileOrientation
spark.layouts The TileOrientation class defines the possible values for the orientation property of the TileLayout class.
 TimeMachineLayout
spark.layouts The TimeMachineLayout class arranges the layout elements in a depth sequence, front to back, with optional depths between the elements and optional aligment the sequence of elements.
 TitleBackground
mx.skins.halo The skin for a title bar area of a Panel.
 TitleBar 
mx.core.windowClasses The default title bar for a WindowedApplication or a Window.
 TitleBar 
spark.components.windowClasses The TitleBar class defines the default title bar for a WindowedApplication or a Window container.
 TitleBarSkin
spark.skins.spark.windowChromeThe default skin class for the title bar of the Spark WindowedApplication component and Spark Window component when you use Flex chrome.
 TitleWindow
mx.containers A TitleWindow layout container contains a title bar, a caption, a border, and a content area for its child.
 TitleWindow
spark.components The TitleWindow class extends Panel to include a close button and move area.
 TitleWindowAccImpl
mx.accessibility TitleWindowAccImpl is a subclass of AccessibilityImplementation which implements accessibility for the TitleWindow class.
 TitleWindowAccImpl
spark.accessibility TitleWindowAccImpl is the accessibility implementation class for spark.components.TitleWindow.
 TitleWindowBoundsEvent
spark.events The TitleWindowBoundsEvent class represents event objects that are dispatched when bounds of a Spark TitleWindow changes, either by moving or resizing.
 TitleWindowCloseButtonSkin
spark.skins.sparkThe default skin class for the close button of the Spark TitleWindow component.
 TitleWindowSkin
spark.skins.sparkThe default skin class for a Spark TitleWindow container.
 TLFTypographicCase
flashx.textLayout.formats Defines values for the typographicCase property of the TextLayoutFormat class.
 ToggleButton
spark.components The ToggleButton component defines a toggle button.
 ToggleButtonAccImpl
spark.accessibility ToggleButtonAccImpl is the accessibility implementation class for spark.components.ToggleButton.
 ToggleButtonBar
mx.controls The ToggleButtonBar control defines a horizontal or vertical group of buttons that maintain their selected or deselected state.
 ToggleButtonBase
spark.components.supportClasses The ToggleButtonBase component is the base class for the Spark button components that support the selected property.
 ToggleButtonSkin
spark.skins.sparkThe default skin class for a Spark ToggleButton component.
 ToggleSwitch 
spark.components The Spark ToggleSwitch control defines a binary switch that can be in the selected or unselected position.
 ToggleSwitchSkin 
spark.skins.mobile ActionScript-based skin for the ToggleSwitch control.
 ToolTip
mx.controls The ToolTip control lets you provide helpful information to your users.
 ToolTipBorder
mx.skins.halo The skin for a ToolTip.
 ToolTipEvent
mx.events The ToolTipEvent class represents ToolTip events, which are generated by the ToolTipManager class.
 ToolTipManager
mx.managers The ToolTipManager lets you set basic ToolTip and error tip functionality, such as display delay and the disabling of ToolTips.
 TouchInteractionEvent
mx.events TouchInteractionEvents are used to coordinate touch intraction and response among different components.
 TouchInteractionReason
mx.events The TouchInteractionReason class defines the constant values for the reason property of the TouchInteractionEvent class.
 TraceTarget
mx.logging.targets Provides a logger target that uses the global trace() method to output log messages.
 TrackBase
spark.components.supportClasses The TrackBase class is a base class for components with a track and one or more thumb buttons, such as Slider and ScrollBar.
 TrackBaseEvent
spark.events Represents events that are dispatched from a TrackBase component.
 Transform
mx.geom Adds synchronization support on top of the flash.geom.Transform class.
 TransformOffsets
mx.geom A CompoundTransform represents a 2D or 3D matrix transform.
 Transition
mx.states The Transition class defines a set of effects that play in response to a change of view state.
 TransparentActionButtonSkin 
spark.skins.mobile The default skin class for buttons in the action area of the Spark ActionBar component in mobile applications.
 TransparentNavigationButtonSkin 
spark.skins.mobile The default skin class for buttons in the navigation area of the Spark ActionBar component in mobile applications.
 Tree
mx.controls The Tree control lets a user view hierarchical data arranged as an expandable tree.
 TreeAccImpl
mx.accessibility TreeAccImpl is a subclass of AccessibilityImplementation which implements accessibility for the Tree class.
 TreeEvent
mx.events The TreeEvent class represents the event object passed to the event listener for events that are associated with activities in tree, such as when a tree branch opens or closes.
 TreeItemRenderer
mx.controls.treeClasses The TreeItemRenderer class defines the default item renderer for a Tree control.
 TreeListData
mx.controls.treeClasses The TreeListData class defines the data type of the listData property implemented by drop-in item renderers or drop-in item editors for the Tree control.
 TriangleItemRenderer
mx.charts.renderers A simple chart itemRenderer implementation that fills an upright triangle in its assigned area.
 TruncationOptions
flashx.textLayout.factory The TruncationOptions class specifies options for limiting the number of lines of text created by a text line factory and for indicating when lines have been left out.
 Tween
mx.effects The Tween class defines a tween, a property animation performed on a target object over a period of time.
 TweenEffect
mx.effects The TweenEffect class is the superclass for all effects that are based on the Tween object.
 TweenEffectInstance
mx.effects.effectClasses The TweenEffectInstance class implements the instance class for the TweenEffect.
 TweenEvent
mx.events Represents event objects that are specific to Flex tween effects.
 UIComponent
mx.core The UIComponent class is the base class for all visual components, both interactive and noninteractive.
 UIComponentCachePolicy
mx.core The ContainerCreationPolicy class defines the constant values for the cachePolicy property of the UIComponent class.
 UIComponentDescriptor
mx.core A UIComponentDescriptor instance encapsulates the information that you specified in an MXML tag for an instance of a visual component.
 UIDUtil
mx.utils The UIDUtil class is an all-static class with methods for working with UIDs (unique identifiers) within Flex.
 UIFTETextField
mx.core The UIFTETextField class is an alternative to the UITextField class for displaying text in MX components.
 UITextField
mx.core The UITextField class defines the component used by many Flex components to display text.
 UITextFieldGridItemRenderer
spark.skins.spark The UITextFieldGridItemRenderer class defines simple and efficient item renderer that displays a single text label.
 UITextFormat
mx.core The UITextFormat class represents character formatting information for the UITextField class.
 UnconstrainItemAction
mx.effects The UnconstrainItemAction class defines an action effect that is used in a data-effect definition to temporarily stop item renderers from being positioned by the layout algorithm of the parent control.
 UnconstrainItemActionInstance
mx.effects.effectClasses The UnconstrainItemActionInstance class implements the instance class for the UnconstrainItemAction effect.
 UndoManager
flashx.undo The UndoManager class manages the history of editing operations on a text flow so that these operations can be undone and redone.
 UndoOperation
flashx.textLayout.operations The UndoOperation class encapsulates an undo operation.
 UpdateCompleteEvent
flashx.textLayout.events A TextFlow instance dispatches this event after any of its containers completes an update.
 URLUtil
mx.utils The URLUtil class is a static class with methods for working with full and relative URLs within Flex.
 ValidationResult
mx.validators The ValidationResult class contains the results of a validation.
 ValidationResultEvent
mx.events The ValidationResultEvent class represents the event object passed to the listener for the valid validator event or the invalid validator event.
 Validator
mx.validators The Validator class is the base class for all Flex validators.
 VBox
mx.containers The Halo VBox container lays out its children in a single vertical column.
 VDividedBox
mx.containers The VDividedBox container lays out its children vertically in the same way as the VBox container, but it inserts a draggable divider in the gap between each child.
 VDivider
spark.containers 
 VDividerGroup
spark.containers 
 VectorCollection
org.apache.flex.collections The VectorCollection class is a wrapper class that exposes a Vector as a collection that can be accessed and manipulated using the methods and properties of the ICollectionView or IList interfaces.
 VectorList
org.apache.flex.collections A simple implementation of IList that uses a backing Vector.
 VerticalAlign
flashx.textLayout.formats Defines values for the verticalAlign property of the TextLayoutFormat class.
 VerticalAlign
spark.layouts The VerticalAlign class defines the possible values for the verticalAlign property of the HorizontalLayout class.
 VerticalLayout
spark.layouts The VerticalLayout class arranges the layout elements in a vertical sequence, top to bottom, with optional gaps between the elements and optional padding around the sequence of elements.
 VGroup
spark.components The VGroup container is an instance of the Group container that uses the VerticalLayout class.
 VideoDisplay
mx.controls The VideoDisplay control lets you play an FLV file in a Flex application.
 VideoDisplay
spark.components The VideoDisplay class is chromeless video player that supports progressive download, multi-bitrate, and streaming video.
 VideoError
mx.controls.videoClasses The VideoError class represents the error codes for errors thrown by the VideoDisplay control.
 VideoEvent
mx.events The VideoEvent class represents the event object passed to the event listener for events dispatched by the VideoDisplay control, and defines the values of the VideoDisplay.state property.
 VideoPlayer
spark.components The VideoPlayer control is a skinnable video player that supports progressive download, multi-bitrate streaming, and streaming video.
 VideoPlayerAccImpl
spark.accessibility VideoPlayerAccImpl is the accessibility implementation class for spark.components.VideoPlayer.
 VideoPlayerSkin
spark.skins.sparkThe default skin class for the Spark VideoPlayer component.
 View 
spark.components The View class is the base container class for all views used by view navigators.
 ViewMenu 
spark.components The ViewMenu container defines a menu in a View container.
 ViewMenuItem 
spark.components The ViewMenuItem control displays a label and icon for a menu item in the ViewMenu container.
 ViewMenuItemSkin
spark.skins.mobile Default skin for ViewMenuItem.
 ViewMenuLayout 
spark.layouts The ViewMenuLayout class defines the layout of the ViewMenu container.
 ViewMenuSkin
spark.skins.mobileThe default skin class for a Spark ViewMenu in a mobile application.
 ViewNavigator 
spark.components The ViewNavigator component is a container that consists of a collection of View objects, where only the top most view is visible and active.
 ViewNavigatorAction 
spark.components.supportClasses The ViewNavigatorAction class defines the constant values for the action property of ViewNavigatorEvent class.
 ViewNavigatorApplication 
spark.components The ViewNavigatorApplication class is an application class meant to provide a simple framework for applications that employ a view-based navigation model.
 ViewNavigatorApplicationBase 
spark.components.supportClasses The ViewNavigatorApplicationBase class is the base class used for all view-based application types.
 ViewNavigatorApplicationSkin 
spark.skins.mobile The ActionScript-based skin used for ViewNavigatorApplication.
 ViewNavigatorBase 
spark.components.supportClasses The ViewNavigatorBase class defines the base class logic and interface used by view navigators.
 ViewNavigatorEvent 
spark.events The ViewNavigatorEvent class represents event objects dispatched by the View class.
 ViewNavigatorSkin 
spark.skins.mobile The ActionScript-based skin for view navigators in mobile applications.
 ViewReturnObject 
spark.components.supportClasses The ViewReturnObject class encapsulates the return value of a view when it is popped off a navigation stack.
 ViewStack
mx.containers An MX ViewStack navigator container consists of a collection of child containers stacked on top of each other, where only one child at a time is visible.
 ViewTransitionBase 
spark.transitions The ViewTransitionBase class is the base class for all view transitions.
 ViewTransitionDirection 
spark.transitions The ViewTransitionDirection class provides the constants used when hinting the direction of a view transition.
 VNoTrackNoThumbScrollBarSkin
spark.skinsThe default skin class for the Spark VScrollBar component.
 VolumeBar
spark.components.mediaClasses The VolumeBar class defines a drop-down slider to control the volume of the VideoDisplay control.
 VolumeBarSkin
spark.skins.spark.mediaClasses.fullScreenThe default skin class for the volume bar of a Spark VideoPlayer component while in one of the fullScreen skin states.
 VolumeBarSkin
spark.skins.spark.mediaClasses.normalThe default skin class for the volume bar of a Spark VideoPlayer component in the normal skin state.
 VolumeBarThumbSkin
spark.skins.spark.mediaClasses.fullScreenThe default skin class for the volume bar thumb part button of a Spark VideoPlayer component while in one of the fullScreen skin states.
 VolumeBarThumbSkin
spark.skins.spark.mediaClasses.normalThe default skin class for the volume bar thumb part of a Spark VideoPlayer component in the normal skin state.
 VolumeBarTrackSkin
spark.skins.spark.mediaClasses.fullScreenThe default skin class for the volume bar track part of a Spark VideoPlayer component while in one of the fullScreen skin states.
 VolumeBarTrackSkin
spark.skins.spark.mediaClasses.normalThe default skin class for the volume bar track part of a Spark VideoPlayer component in the normal skin state.
 VRule
mx.controls The VRule control creates a single vertical line.
 VScrollBar
mx.controls The VScrollBar (vertical ScrollBar) control lets you control the portion of data that is displayed when there is too much data to fit in a display area.
 VScrollBar
spark.components The VScrollBar (vertical scrollbar) control lets you control the portion of data that is displayed when there is too much data to fit vertically in a display area.
 VScrollBarSkin
spark.skins.mobile ActionScript-based skin for VScrollBar components in mobile applications.
 VScrollBarSkin
spark.skins.sparkThe default skin class for the Spark VScrollBar component.
 VScrollBarThumbSkin
spark.skins.mobile ActionScript-based skin for the VScrollBar thumb skin part in mobile applications.
 VScrollBarThumbSkin
spark.skins.sparkThe default skin class for the thumb of a Spark VScrollBar component.
 VScrollBarTrackSkin
spark.skins.sparkThe default skin class for the track of a Spark VScrollBar component.
 VSlider
mx.controls The VSlider control lets users select a value by moving a slider thumb between the end points of the slider track.
 VSlider
spark.components The VSlider (vertical slider) control lets users select a value by moving a slider thumb between the end points of the slider track.
 VSliderSkin
spark.skins.sparkThe default skin class for the Spark VSlider component.
 VSliderThumbSkin
spark.skins.sparkThe default skin class for the thumb of a Spark VSlider component.
 VSliderTrackSkin
spark.skins.sparkThe default skin class for the track of a Spark VSlider component.
 WebService
mx.rpc.soap.mxml The <mx:WebService> tag gives you access to the operations of SOAP-compliant web services.
 WebService
mx.rpc.soap The WebService class provides access to SOAP-based web services on remote servers.
 WedgeItemRenderer
mx.charts.renderers The default itemRenderer for a PieSeries object.
 WhiteSpaceCollapse
flashx.textLayout.formats Defines values for setting the whiteSpaceCollapse property of the TextLayoutFormat class.
 Window 
mx.core The Window is a top-level container for additional windows in an AIR desktop application.
 Window 
spark.components The Window is a top-level container for additional windows in an AIR desktop application.
 WindowBackground 
mx.skins.halo The skin for a Window component's background gradient.
 WindowCloseButtonSkin 
mx.skins.halo The skin for the close button in the TitleBar of a WindowedApplication or Window.
 WindowedApplication 
mx.core The WindowedApplication defines the application container that you use to create Flex applications for AIR applications.
 WindowedApplication 
spark.components The WindowedApplication defines the application container that you use to create Flex applications for AIR applications.
 WindowedApplicationSkin
spark.skins.sparkA skin class for the Spark WindowedApplication and Window containers.
 WindowedSystemManager 
mx.managers The WindowedSystemManager class manages any non-Application windows in a Flex-based AIR application.
 WindowMaximizeButtonSkin 
mx.skins.halo The skin for the maximize button in the TitleBar of a WindowedApplication or Window.
 WindowMinimizeButtonSkin 
mx.skins.halo The skin for the minimize button in the TitleBar of a WindowedApplication or Window.
 WindowRestoreButtonSkin 
mx.skins.halo The skin for the restore button in the TitleBar of a WindowedApplication or Window.
 Wipe
spark.effects The Wipe effect performs a bitmap transition effect by running a directional wipe between the first and second bitmaps.
 WipeDirection
spark.effects The WipeDirection class defines the values for the direction property of the Wipe class.
 WipeDown
mx.effects The WipeDown class defines a wipe down effect.
 WipeDownInstance
mx.effects.effectClasses The WipeDownInstance class implements the instance class for the WipeDown effect.
 WipeLeft
mx.effects The WipeLeft class defines a wipe left effect.
 WipeLeftInstance
mx.effects.effectClasses The WipeLeftInstance class implements the instance class for the WipeLeft effect.
 WipeRight
mx.effects The WipeRight class defines a wipe right effect.
 WipeRightInstance
mx.effects.effectClasses The WipeRightInstance class implements the instance class for the WipeRight effect.
 WipeUp
mx.effects The WipeUp class defines a wipe up effect.
 WipeUpInstance
mx.effects.effectClasses The WipeUpInstance class implements the instance class for the WipeUp effect.
 WSDLBinding
mx.rpc.wsdl A binding defines the message format and protocol for messages sent to and from operations as defined by a particular portType.
 WSDLLoadEvent
mx.rpc.events The WSDLLoadEvent class represents the event object for the event dispatched when a WSDL XML document has loaded successfully.
 XMLListCollection
mx.collections The XMLListCollection class provides collection functionality to an XMLList object and makes available some of the methods of the native XMLList class.
 XMLLoadEvent
mx.rpc.events The XMLLoadEvent class is a base class for events that are dispatched when an RPC service successfully loaded an XML document.
 XMLNotifier
mx.utils Used for watching changes to XML and XMLList objects.
 XMLUtil
mx.utils The XMLUtil class is an all-static class with methods for working with XML within Flex.
 ZipCodeFormatter
mx.formatters The ZipCodeFormatter class formats a valid number into one of the following formats, based on a user-supplied formatString property.
 ZipCodeValidator
mx.validators The ZipCodeValidator class validates that a String has the correct length and format for a five-digit ZIP code, a five-digit+four-digit United States ZIP code, or Canadian postal code.
 ZipCodeValidatorDomainType
mx.validators The ZipCodeValidatorDomainType class defines the values for the domain property of the ZipCodeValidator class, which you use to specify the type of ZIP code to validate.
 Zoom
mx.effects The Zoom effect zooms the object in or out on a center point.
 ZoomInstance
mx.effects.effectClasses The ZoomInstance class implements the instance class for the Zoom effect.
 ZoomViewTransition 
spark.transitions The ZoomViewTransition class performs a zoom in or out transition for views.