UncaughtErrorEvents

Package	flash.events
Class	public class UncaughtErrorEvents
Inheritance	UncaughtErrorEvents EventDispatcher Object

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 10.1, AIR 2

The UncaughtErrorEvents class provides a way to receive uncaught error events. An instance of this class dispatches an uncaughtError event when a runtime error occurs and the error isn't detected and handled in your code.

Use the following properties to access an UncaughtErrorEvents instance:

LoaderInfo.uncaughtErrorEvents: to detect uncaught errors in code defined in the same SWF.
Loader.uncaughtErrorEvents: to detect uncaught errors in code defined in the SWF loaded by a Loader object.

To catch an error directly and prevent an uncaught error event, do the following:

Use a try..catch block to isolate code that potentially throws a synchronous error
When performing an operation that dispatches an event when an error occurs, register a listener for that error event

If the content loaded by a Loader object is an AVM1 (ActionScript 2) SWF file, uncaught errors in the AVM1 SWF file do not result in an uncaughtError event. In addition, JavaScript errors in HTML content loaded in an HTMLLoader object (including a Flex HTML control) do not result in an uncaughtError event.

Related API Elements

LoaderInfo.uncaughtErrorEvents
Loader.uncaughtErrorEvents
UncaughtErrorEvent

Public Properties

	Property		Defined By
		constructor : Object A reference to the class object or constructor function for a given object instance.	Object

Public Methods

	Method		Defined By
		UncaughtErrorEvents() Creates an UncaughtErrorEvents instance.	UncaughtErrorEvents
		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

Click for more information on events

	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
uncaughtError	Dispatched when an error occurs and developer code doesn't detect and handle the error.	UncaughtErrorEvents

Constructor Detail