Flash AS3 截图后生成图片到本地 (附带flex版)

import mx.graphics.codec.JPEGEncoder;
private var file:FileReference = new FileReference(); 

var bitmapData:BitmapData = new BitmapData(pic.width, pic.height);
bitmapData.draw(pic,new Matrix());
var bitmap : Bitmap = new Bitmap(bitmapData);
var jpg:JPEGEncoder = new JPEGEncoder();
var ba:ByteArray = jpg.encode(bitmapData);
file.save(ba,"name.jpg");