Movieclip._Alpha - MACROMEDIA FLASH MX 2004-ACTIONSCRIPT LANGUAGE Reference

MovieClip._alpha

Availability
Flash Player 4.
Usage
my_mc._alpha:Number
Description
Property; the alpha transparency value of the movie clip specified by
(fully transparent) to 100 (fully opaque). The default value is 100. Objects in a movie clip with
set to 0 are active, even though they are invisible. For example, you can still click a button
_alpha
in a movie clip whose
the movie clip's
You can extend the methods and event handlers of the MovieClip class by creating a subclass. For
more information, see "Assigning a class to a movie clip symbol" in Using ActionScript in Flash.
Example
The following code sets the
to 50% when the mouse rolls over the movie clip. Add the following ActionScript to
holder_mc
your FLA or AS file:
this.createEmptyMovieClip("holder_mc", this.getNextHighestDepth());
holder_mc.createEmptyMovieClip("image_mc", holder_mc.getNextHighestDepth());
// replace with your own image or use the following
holder_mc.image_mc.loadMovie("http://www.macromedia.com/devnet/mx/blueprint/
articles/nielsen/spotlight_jnielsen.jpg");
holder_mc.onRollOver = function() {
this._alpha = 50;
};
holder_mc.onRollOut = function() {
this._alpha = 100;
};
See also
Button._alpha, TextField._alpha,
494 Chapter 2: ActionScript Language Reference
property is set to 0. To disable the button completely, you can set
_alpha
property to false.
_visible
property of a dynamically created movie clip named
_alpha
MovieClip._visible
. Valid values are 0
my_mc