User Guide

Operators 127

In the following example, the keyword this references the Circle object:

function Circle(radius:Number):Void {

this.radius = radius;

this.area = Math.PI*Math.pow(radius, 2);

}

var myCircle = new Circle(4);

trace(myCircle.area);

In the following statement assigned to a frame inside a movie clip, the keyword this

references the current movie clip.

// sets the alpha property of the current movie clip to 20

this._alpha = 20;

In the following statement inside a MovieClip.onPress handler, the keyword this references

the current movie clip:

this.square_mc.onPress = function() {

startDrag(this);

};

this.square_mc.onRelease = function() {

stopDrag();

};