User Guide

Button 275
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)
enabled (Button.enabled property)
public enabled : Boolean
A Boolean value that specifies whether a button is enabled. When a button is disabled (the
enabled property is set to
false), the button is visible but cannot be clicked. The default
value is
true. This property is useful if you want to disable part of your navigation; for
example, you may want to disable a button in the currently displayed page so that it can't be
clicked and the page cannot be reloaded.
Availability: ActionScript 1.0; Flash Lite 2.0
Example
The following example demonstrates how you can disable and enable buttons from being
clicked. Two buttons,
myBtn1_btn and myBtn2_btn, are on the Stage and the following
ActionScript is added so that the
myBtn2_btn button cannot be clicked. First, add two button
instances on the Stage. Second, give them instance names of
myBtn1_btn and myBtn2_btn.
Lastly, place the following code on frame 1 to enable or disable buttons.
myBtn1_btn.enabled = true;
myBtn2_btn.enabled = false;
//button code
// the following function will not get called
// because myBtn2_btn.enabled was set to false
myBtn1_btn.onRelease = function() {
trace( "you clicked : " + this._name );
};
myBtn2_btn.onRelease = function() {
trace( "you clicked : " + this._name );
};