MACROMEDIA FLASH MX 2004-ACTIONSCRIPT LANGUAGE, Reference

Page: 365 / 1104

Key.removeListener() 365
Key.removeListener()
Availability
Flash Player 6.
Usage
Key.removeListener ( listener:Object ) : Boolean
Parameters
listener
An object.
Returns
If the
listener
was successfully removed, the method returns
true
. If the
listener
was not
successfully removed (for example, because the
listener
was not on the Key object’s listener list),
the method returns
false
.
Description
Method; removes an object previously registered with Key.addListener() .
Example
The following example moves a movie clip called
car_mc
using the Left and Right arrow keys.
The listener is removed when you press Escape, and
car_mc
no longer moves.
var keyListener:Object = new Object();
keyListener.onKeyDown = function() {
switch (Key.getCode()) {
case Key.LEFT :
car_mc._x -= 10;
break;
case Key.RIGHT :
car_mc._x += 10;
break;
case Key.ESCAPE :
Key.removeListener(keyListener);
}
};
Key.addListener(keyListener);