var thumbHolder:Sprite = new Sprite();

thumbHolder.x = 230;

var thumbHolderCopy:Sprite = new Sprite();

gallMovie.addChild(thumbHolder);

gallMovie.addChild(thumbHolderCopy);

 

var thumbHolderMask:Sprite = new Sprite();

thumbHolderMask.x = 200;

thumbHolderMask.y = -44;

with(thumbHolderMask.graphics) {

        beginFill(0xFF0000);

        drawRect(0,0,1000,1000);

        endFill();

}

gallMovie.addChild(thumbHolderMask);

thumbHolder.mask = thumbHolderMask;

 

var thumb:PicBox = new PicBox(); //из library

thumbHolder.addChild(thumb);

 

//делаем screenshot thumbHolder

var bmd:BitmapData = new BitmapData(thumbHolder.width, thumbHolder.height);

bmd.draw(thumbHolder);

var b:Bitmap = new Bitmap(bmd);

thumbHolderCopy.addChild(b);