package {
    import flash.display.*;
    import flash.events.*;
    
    // Demonstrates how to handle keyboard events from a global 
    // point of reference. Displays a debugging message when a key is pressed
    // while Flash Player has system focus.
    public class @ax-actionscript-events-GlobalKeyboardSensor  extends Sprite {
      public function @ax-actionscript-events-GlobalKeyboardSensor  () {
        stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDownListener);
      }
  
      private function keyDownListener (e:KeyboardEvent):void {
        trace("A key was pressed.");
        
      }
    }
  }