shadowAlpha (BevelFilter.shadowAlpha property) -- Version 8

The alpha transparency value of the shadow color. This value is specified as a normalized value from 0 to 1. For example, .25 sets a transparency value of 25%. The default value is 1.

Example

The following example changes the shadowAlpha property on the existing MovieClip instance (rect) when a user clicks it:

import flash.filters.BevelFilter;

var rect:MovieClip = createBevelRectangle("BevelShadowAlpha");
rect.onRelease = function() {
    var filter:BevelFilter = this.filters[0];
    filter.shadowAlpha = .2;
    this.filters = new Array(filter);
}

function createBevelRectangle(name:String):MovieClip {
    var w:Number = 100;
    var h:Number = 100;
    var bgColor:Number = 0x00CC00;

    var rect:MovieClip = this.createEmptyMovieClip(name, this.getNextHighestDepth());
    rect.beginFill(bgColor);
    rect.lineTo(w, 0);
    rect.lineTo(w, h);
    rect.lineTo(0, h);
    rect.lineTo(0, 0);
    rect._x = 20;
    rect._y = 20;

    var filter:BevelFilter = new BevelFilter(5, 45, 0xFFFF00, .8, 0x0000FF, .8, 20, 20, 1, 3, "inner", false);
    rect.filters = new Array(filter);
    return rect;
}