User Guide

Button 347
Method summary
Methods inherited from class Object
_alpha (Button._alpha property)
public _alpha : Number
The alpha transparency value of the button specified by my_btn. Valid values are 0 (fully
transparent) to 100 (fully opaque). The default value is 100. Objects in a button with
_alpha
set to 0 are active, even though they are invisible.
Availability: ActionScript 1.0; Flash Player 6
Example
The following code sets the
_alpha property of a button named myBtn_btn to 50% when the
user clicks the button. First, add a Button instance on the Stage. Second, give it an instance
name of myBtn_btn. Lastly, with frame 1 selected, place the following code into the Actions
panel:
myBtn_btn.onRelease = function(){
this._alpha = 50;
};
See also
_alpha (MovieClip._alpha property), _alpha (TextField._alpha property)
onRollOver =
function() {}
Invoked when the pointer moves over a button area.
onSetFocus =
function(oldFocu
s:Object) {}
Invoked when a button receives keyboard focus.
Modifiers Signature Description
getDepth() : Number Returns the depth of the button instance.
addProperty (Object.addProperty method), hasOwnProperty
(Object.hasOwnProperty method), isPropertyEnumerable
(Object.isPropertyEnumerable method), isPrototypeOf (Object.isPrototypeOf
method), registerClass (Object.registerClass method), toString
(Object.toString method), unwatch (Object.unwatch method), valueOf
(Object.valueOf method), watch (Object.watch method)
Event Description