Adding Key down handler for Application

        

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="init()">
    
    <mx:Script>
        
            import mx.core.Application ;
            import flash.events.KeyboardEvent;
            import mx.controls.Alert;
            
            private function init():void 
            {           
                this.addEventListener(KeyboardEvent.KEY_DOWN, keyHandler ); 
            }
            private function keyHandler (e:KeyboardEvent):void 
            {               
                txt_code.text = String(e.keyCode);
                txt_char.text = String(e.charCode);
            }
          
            
    </mx:Script> 
    
    <mx:HBox>
        <mx:Label text="KeyCode Pressed"/>
        <mx:Label text="Charcode :"/>
        <mx:TextInput id="txt_char"/>
        <mx:TextInput id="txt_code"/>
        
    </mx:HBox> 

</mx:Application>

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Adding Key down handler for Application : Key Event « Event « Flex

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