Application to prevent window close

Application to prevent window close by default and do some action.

<?xml version="1.0" encoding="utf-8"?>

<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical"

creationComplete="initApp()">

<mx:Script>

<![CDATA[

import mx.events.CloseEvent;

import mx.controls.Alert;

/*  */

private function initApp():void

{

this.addEventListener(Event.CLOSING, onClosing);

}

/*  */

private function onClosing( event:Event ):void

{

event.preventDefault();

Alert.yesLabel = "yea";

Alert.noLabel = "na";

Alert.show("You want to exit?","Close", Alert.YES|Alert.NO, this, alertHandler, null, 2);

}

/*  */

private function alertHandler( event:CloseEvent ):void

{

if( event.detail == Alert.YES)

{

this.nativeApplication.exit();

}

}

]]>

</mx:Script>

</mx:WindowedApplication>