title: Trying to capture stage area using BitmapData
body: <p>I am trying to grab <strong>part of</strong> stage area using BitmapData and copyPixels method:</p>
  
  <pre><code>bmd = new BitmapData(stage.stageWidth, stage.stageHeight);
  
  bmdRect = new BitmapData(320, 240);
  
  rectangle = new Rectangle(360, 20, 320, 240); 
  
  bmdRect.copyPixels(bmd, rectangle, new Point());
  
  bmd.draw(bmp);
  bmp = new Bitmap(bmdRect);   
  
  var myEncoder:JPGEncoder = new JPGEncoder(100);
  var byteArray:ByteArray = myEncoder.encode(bmd);
  </code></pre>
  
  <p>The result i get is an empty .jpg I m pretty sure that the error is in the Bitmap procedure and not the saving one...</p>