Graphics Flash ActionScript

package
{
    import flash.display.*;
    import flash.events.Event;
    import flash.net.URLRequest;
    public class Main extends Sprite
    {
        private var shape:Sprite;
        private var loader:Loader;
        private var bmpImage:BitmapData;
        private var mShape:Sprite;
    
        public function Main()
        {
            loader = new Loader();
            loader.contentLoaderInfo.addEventListener(Event.COMPLETE, picLoaded);
            loader.load(new URLRequest("image1.jpg"));
    
            mShape = new Sprite();
    
            mShape.x = 100;
            mShape.y = 200;
        }
    
        private function picLoaded(event:Event):void
        {
            bmpImage = new BitmapData(loader.width, loader.height);
    
            bmpImage.draw(loader);
    
            mShape.graphics.lineStyle(10);
            mShape.graphics.beginBitmapFill(bmpImage);
            mShape.graphics.curveTo(100, -50, 200, 0);
            mShape.graphics.lineTo(200, 100);
            mShape.graphics.lineTo(0, 100);
    
            mShape.graphics.lineTo(0, 0);
            mShape.graphics.endFill();
            addChild(mShape);
        }
    }
}