Knockout (Dropshadowfilter.knockout Property) - MACROMEDIA FLASH 8-ACTIONSCRIPT 2.0 LANGUAGE Reference

art._x = 20;
art._y = 20;
var filter:DropShadowFilter = new DropShadowFilter(15, 45, 0x000000, .8,
16, 16, 1, 3, false, false, false);
var filterArray:Array = new Array();
filterArray.push(filter);
art.filters = filterArray;
return art;
}

knockout (DropShadowFilter.knockout property)

public knockout : Boolean
Applies a knockout effect (
reveals the background color of the document. The default is
Availability: ActionScript 1.0; Flash Player 8
Example
The following example changes the
clicks it.
import flash.filters.DropShadowFilter;
var mc:MovieClip = createDropShadowRectangle("DropShadowKnockout");
mc.onRelease = function() {
var filter:DropShadowFilter = this.filters[0];
filter.knockout = true;
this.filters = new Array(filter);
}
function createDropShadowRectangle(name:String):MovieClip {
var art:MovieClip = this.createEmptyMovieClip(name,
this.getNextHighestDepth());
var w:Number = 100;
var h:Number = 100;
art.beginFill(0x003366);
art.lineTo(w, 0);
art.lineTo(w, h);
art.lineTo(0, h);
art.lineTo(0, 0);
art._x = 20;
art._y = 20;
542 ActionScript classes
), which effectively makes the object's fill transparent and
true
property on an existing movie clip when a user
knockout
(no knockout).
false