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566 Chapter 7: ActionScript for Flash

box_mc.onRelease = function() {

this.clear();

};

drawBox(box_mc, 10, 10, 320, 240);

function drawBox(mc:MovieClip, x:Number, y:Number, w:Number, h:Number):Void {

mc.lineStyle(0);

mc.beginFill(0xEEEEEE);

mc.moveTo(x, y);

mc.lineTo(x+w, y);

mc.lineTo(x+w, y+h);

mc.lineTo(x, y+h);

mc.lineTo(x, y);

mc.endFill();

}

See also

MovieClip.lineStyle()

MovieClip.createEmptyMovieClip()

Availability

Flash Player 6.

Usage

my_mc.createEmptyMovieClip(instanceName:String, depth:Number) : MovieClip

Parameters

instanceName

A string that identifies the instance name of the new movie clip.

depth An integer that specifies the depth of the new movie clip.

Returns

A reference to the newly created movie clip.

Description

Method; creates an empty movie clip as a child of an existing movie clip. This method behaves

similarly to the

attachMovie() method, but you don’t need to provide an external linkage

identifier for the new movie clip. The registration point for a newly created empty movie clip is

the upper left corner. This method fails if any of the parameters are missing.

You can extend the methods and event handlers of the MovieClip class by creating a subclass.

Example

The following ActionScript creates a new movie clip at runtime and loads a JPEG image into the

movie clip.

this.createEmptyMovieClip("logo_mc", this.getNextHighestDepth());

logo_mc.loadMovie("http://www.macromedia.com/images/shared/product_boxes/

80x92/studio_flashpro.jpg");