User Guide

Button 281
Example
In the following example, a function that sends text to the Output panel is defined for the
onKeyDown handler. Create a button called my_btn on the Stage, and enter the following
ActionScript in a frame on the Timeline:
my_btn.onKeyDown = function() {
trace("onKeyDown: "+this._name+" (Key: "+getKeyPressed()+")");
};
function getKeyPressed():String {
var theKey:String;
switch (Key.getAscii()) {
case Key.BACKSPACE :
theKey = "BACKSPACE";
break;
case Key.SPACE :
theKey = "SPACE";
break;
default :
theKey = chr(Key.getAscii());
}
return theKey;
}
Select Control > Test Movie to test the SWF file. Make sure you select Control > Disable
Keyboard Shortcuts in the test environment. Then press the Tab key until the button has
focus (a yellow rectangle appears around the
my_btn instance) and start pressing keys on your
keyboard. When you press keys, they are displayed in the Output panel.
See also
onKeyUp (Button.onKeyUp handler), getAscii (Key.getAscii method), getCode
(Key.getCode method)
onKeyUp (Button.onKeyUp handler)
onKeyUp = function() {}
Invoked when a button has input focus and 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.
Availability: ActionScript 1.0; Flash Lite 2.0