stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDownH, false, int.MAX_VALUE);

stage.addEventListener(KeyboardEvent.KEY_UP, keyDownH, false, int.MAX_VALUE);

stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDownH, true, int.MAX_VALUE);

stage.addEventListener(KeyboardEvent.KEY_UP, keyDownH, true, int.MAX_VALUE);

private static function keyDownH(e:KeyboardEvent):void {

                        trace(' ===============================> > > e.keyCode == '+e.keyCode);

                        e.preventDefault();

                        e.stopImmediatePropagation();

                        e.stopPropagation();

                        }