      *  @param bitmapData The input BitmapData object.
      *
      *  @return Returns a ByteArray object containing PNG-encoded image data.
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 9
+     *  @playerversion AIR 1.1
+     *  @productversion Flex 3
      */
     public function encode(bitmapData:BitmapData):ByteArray
     {


    /**
     *  Constructor.
     */
    public function PNGEncoder()
    {

 *  images using Portable Network Graphics (PNG) lossless compression.
 *
 *  <p>For the PNG specification, see http://www.w3.org/TR/PNG/</p>.
 *  
 *  @langversion 3.0
 *  @playerversion Flash 9
 *  @playerversion AIR 1.1
 *  @productversion Flex 3
 */
public class PNGEncoder implements IImageEncoder
{
