MACROMEDIA FLASH MX 2004 - ACTIONSCRIPT - Page 522

522 Chapter 12: ActionScript Dictionary
MovieClip.onKeyUp
Availability
Flash Player 6.
Usage
my_mc.onKeyUp = function() {
// your statements here
}
Parameters
None.
Returns
Nothing.
Description
Event handler; invoked when a key is released. The onKeyUp event handler is invoked with no
parameters. You can use the
Key.getAscii() and Key.getCode() methods to determine which
key was pressed. You must define a function that executes when the event handler is invoked.
The
onKeyUp event handler works only if the movie clip has input focus enabled and set. First,
the
focusEnabled property must be set to true for the movie clip. Then, the clip must be given
focus. This can be done either by using
Selection.setFocus() or by setting the tab key to
navigate to the clip.
If
Selection.setFocus() is used, the path for the movie clip must be passed to
Selection.setFocus(). It is very easy for other elements to take the focus back once the mouse
is moved.
Example
The following example defines a function for the onKeyUp method that sends a trace() action to
the Output panel.
my_mc.onKeyUp = function () {
trace ("onKeyUp called");
};
The following example sets input focus:
MovieClip.focusEnabled = true;
Selection.setFocus(MovieClip);