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






Adding Key down handler for Application

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>

   
    
    
    
    
    
    
    
  








Related examples in the same category

1.If shift key pressed during dragging overIf shift key pressed during dragging over
2.If control key pressed during draggingIf control key pressed during dragging
3.Trap keys pressed when the focus is on an individual componentTrap keys pressed when the focus is on an individual component
4.Return string based on key codeReturn string based on key code
5.Listen for the combination of the Shift key and key code 80
6.Control all dispatch keyUp events to the keyHandler() event listener functionControl all dispatch keyUp events to the keyHandler() event listener function
7.Key up eventKey up event
8.Track key codeTrack key code
9.Show character and key codeShow character and key code
10.Combination of Shift key and q keyCombination of Shift key and q key
11.Dispatch keyUp events to the keyHandler() event listener functionDispatch keyUp events to the keyHandler() event listener function
12.Listen for a Keyboard EventListen for a Keyboard Event
13.Create the global listener for handling the keyboard eventCreate the global listener for handling the keyboard event
14.Access application's localVar by prefixing it with outerDocument keywordAccess application's localVar by prefixing it with outerDocument keyword
15.Get key code and char code from KeyboardEventGet key code and char code from KeyboardEvent
16.Output string representation for KeyboardEventOutput string representation for KeyboardEvent
17.Output number to char from char code of KeyboardEventOutput number to char from char code of KeyboardEvent
18.Convert number to char from key code of KeyboardEventConvert number to char from key code of KeyboardEvent
19.Event handler for KeyboardEvent.KEY_UP