Show character and key code

        

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<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:mx="library://ns.adobe.com/flex/mx"
    xmlns:s="library://ns.adobe.com/flex/spark" creationComplete="init()" width="650">
    <s:layout>
        <s:VerticalLayout />
    </s:layout>
    <fx:Script> 
        import flash.events.KeyboardEvent; 
        private function init():void { 
            ti1.setFocus(); 
            this.addEventListener(KeyboardEvent.KEY_DOWN, trapKeys); 
        } 
        private function trapKeys(e:KeyboardEvent):void { 
            ta1.text = String(e.toString()); 
            l1.text = numToChar(e.charCode) + " (" + String(e.charCode) + ")"; 
            l2.text = numToChar(e.keyCode) + " (" + String(e.keyCode) + ")"; 
        } 
        private function numToChar(num:int):String { 
            if (num > 47 && num < 58) { 
                var strNums:String = "0123456789"; 
                return strNums.charAt(num - 48); 
            } else if (num > 64 && num < 91) { 
                var strCaps:String = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; 
                return strCaps.charAt(num - 65); 
            } else if (num > 96 && num < 123) { 
                var strLow:String = "abcdefghijklmnopqrstuvwxyz"; 
                return strLow.charAt(num - 97); 
            } else { 
                return num.toString(); 
            } 
        } 
      
    </fx:Script>
    <s:TextInput width="50%" id="ti1" />
    <s:Panel id="mainPanel" width="100%" height="100%">
        <mx:Form>
            <mx:FormItem label="Char (Code)">
                <mx:Label id="l1" />
            </mx:FormItem>
            <mx:FormItem label="Key (Code)">
                <mx:Label id="l2" />
            </mx:FormItem>
            <mx:FormItem label="Key Event">
                <mx:TextArea id="ta1" width="500" height="200" editable="false" />
            </mx:FormItem>
        </mx:Form>
    </s:Panel>
</s:Application>

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Show character and key code : Key Event « Event « Flex

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