flash.desktop.Icon - Adobe® Flex® 4 Language Reference (Flex 4)

Package	flash.desktop
Class	public class Icon
Inheritance	Icon EventDispatcher Object
Subclasses	InteractiveIcon

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0

The Icon class represents an operating system icon.

An Icon object has one property, bitmaps, which is an array of BitmapData objects. Only one image is displayed at a time. The operating system selects the image closest in size to the icon's current display size, scaling if necessary.

Public Properties

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	Property		Defined By
		bitmaps : Array The icon image as an array of BitmapData objects of different sizes.	Icon
		constructor : Object A reference to the class object or constructor function for a given object instance.	Object
		prototype : Object [static] A reference to the prototype object of a class or function object.	Object

Public Methods

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	Method		Defined By
		addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void Registers an event listener object with an EventDispatcher object so that the listener receives notification of an event.	EventDispatcher
		dispatchEvent(event:Event):Boolean Dispatches an event into the event flow.	EventDispatcher
		hasEventListener(type:String):Boolean Checks whether the EventDispatcher object has any listeners registered for a specific type of event.	EventDispatcher
		hasOwnProperty(name:String):Boolean Indicates whether an object has a specified property defined.	Object
		isPrototypeOf(theClass:Object):Boolean Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.	Object
		propertyIsEnumerable(name:String):Boolean Indicates whether the specified property exists and is enumerable.	Object
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void Removes a listener from the EventDispatcher object.	EventDispatcher
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Sets the availability of a dynamic property for loop operations.	Object
		toLocaleString():String Returns the string representation of this object, formatted according to locale-specific conventions.	Object
		toString():String Returns the string representation of the specified object.	Object
		valueOf():Object Returns the primitive value of the specified object.	Object
		willTrigger(type:String):Boolean Checks whether an event listener is registered with this EventDispatcher object or any of its ancestors for the specified event type.	EventDispatcher

Events

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	Event		Summary	Defined By
		activate	[broadcast event] Dispatched when the Flash Player or AIR application gains operating system focus and becomes active.	EventDispatcher
		deactivate	[broadcast event] Dispatched when the Flash Player or AIR application operating loses system focus and is becoming inactive.	EventDispatcher

Property Detail

bitmaps

property

bitmaps:Array

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0

The icon image as an array of BitmapData objects of different sizes.

When an icon is displayed in a given operating system context, the bitmap in the array closest to the displayed size is used (and scaled if necessary). Common sizes include 16x16, 32x32, 48x48, and 128x128. (512x512 pixel icons may be used for some operating system icons in the near future.)

In some contexts, the operating system may use a default system icon if nothing has been assigned to the bitmaps property. In other contexts, no icon appears.

To set or change the icon appearance, assign an array of BitmapData objects to the bitmaps property:

     icon.bitmaps = new Array(icon16x16.bitmapData, icon128x128.bitmapData);

Modifying the bitmaps array directly has no effect.

To clear the icon image, assign an empty array to the bitmaps property.

Note: When loading image files for an icon, the PNG file format generally provides the best alpha blending. The GIF format supports only on or off transparency (no blending). The JPG format does not support transparency at all.

Implementation
public function get bitmaps():Array
public function set bitmaps(value:Array):void