[flexcoders] Application container failed to capture KeyboardEvent

[zhongtie]

My simple flex app somehow doesn't respond to key event, but mouse
events work fine. Any ideas?

Thanks,
Tie

--- src code ---

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml";
layout="absolute"
        keyDown="onEvent(event)"
        mouseDown="onEvent(event)">
        <mx:Script>
                <![CDATA[
                        protected function onEvent(e:Event):void {
                                trace(e.type);
                        }
                ]]>
        </mx:Script>
</mx:Application>