Detect window closing event in AIR application

Question

How do I detect the window closing event in an AIR app? Tried
the following.
deactivate and windowDeactivate events in the
WindowedApplication tag.
addEventListener(Event.CLOSING, onClose);
addEventListener(AIREvent.APPLICATION_DEACTIVATE onClose);
addEventListener(AIREvent.WINDOW_DEACTIVATE, onClose);
None of them seem to work.
Any ideas?
Thanks
CS

Answer 1

The following works for me:
<mx:WindowedApplication xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute"
closing="traceEvent(event)"
windowDeactivate="traceEvent(event)"
applicationDeactivate="traceEvent(event)">
<mx:Script>
<![CDATA[
public function traceEvent(event:Event):void{
trace(event.type);
]]>
</mx:Script>
</mx:WindowedApplication>
As does:
<mx:WindowedApplication xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute"
applicationComplete="init()">
<mx:Script>
<![CDATA[
import mx.events.AIREvent;
public function init():void{
this.addEventListener(Event.CLOSING, traceEvent);
this.addEventListener(AIREvent.WINDOW_DEACTIVATE,
traceEvent);
this.addEventListener(AIREvent.APPLICATION_DEACTIVATE,
traceEvent);
public function traceEvent(event:Event):void{
trace(event.type);
]]>
</mx:Script>
</mx:WindowedApplication>