See also
onDragOut (Button.onDragOut handler)
onKeyDown (Button.onKeyDown handler)
onKeyDown = function() {}
Invoked when a button has keyboard focus and a key is pressed. The
handler is invoked with no parameters. You can use the
methods to determine which key was pressed. You must define a function
Key.getCode()
that executes when the event handler is invoked.
Availability: ActionScript 1.0; Flash Player 6
Example
In the following example, a function that sends text to the Output panel is defined for the
handler. Create a button called
onKeyDown
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
keyboard. When you press keys, they are displayed in the Output panel.
See also
onKeyUp (Button.onKeyUp handler)
(Key.getCode method)
362
ActionScript classes
Key.getAscii()
on the Stage, and enter the following
my_btn
instance) and start pressing keys on your
my_btn
,
getAscii (Key.getAscii method)
event
onKeyDown
and
,
getCode
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