ActionScript 2.0 Language Reference - Adobe Help and Support

Example
The following example changes the blurY property on an existing movie clip when a user
clicks it.
import flash.filters.DropShadowFilter;
var mc:MovieClip = createDropShadowRectangle("DropShadowBlurY");
mc.onRelease = function() {
var filter:DropShadowFilter = this.filters[0];
filter.blurY = 40;
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;
}
var filter:DropShadowFilter = new DropShadowFilter(15, 45, 0x000000, 0.8,
16, 16, 1, 3, false, false, false);
var filterArray:Array = new Array();
filterArray.push(filter);
art.filters = filterArray;
return art;
clone (DropShadowFilter.clone method)
public clone() : DropShadowFilter
Returns a copy of this filter object.
Availability: ActionScript 1.0; Flash Player 8
Returns
DropShadowFilter - A new DropShadowFilter instance with all the properties of the original
one.
DropShadowFilter (flash.filters.DropShadowFilter) 541