Listen for a Keyboard Event

        
<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:HBox xmlns:mx="http://www.adobe.com/2006/mxml" width="400" height="300" keyDown="keyHandler(event)" backgroundColor="#0000ff">
    <mx:Script>
        

            import flash.events.KeyboardEvent;

            private function keyHandler(event:KeyboardEvent):void
            {
                switch(event.keyCode)
                {
                    case 13:
                        trace(" Enter pressed ");
                    break;
                    case 32:
                        trace(" Space Bar pressed ");
                    break;
                    case 16:
                        trace(" Shift Key pressed ");
                    break;
                    case 112:
                        trace(" F1 pressed ");
                    break;
                    case 8:
                        trace(" Delete pressed ");
                    break;
                }
            }

      
    </mx:Script>
    <mx:Button label="One"/>
</mx:HBox>
</mx:Application>

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Listen for a Keyboard Event : Key Event « Event « Flex

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