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Convert BitmapImage to byte[] or stream in WinRT
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goodzhengcheng 2013-04-29, 14:03 #1
Member since Mar 2013 · 8 posts
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Subject: Convert BitmapImage to byte[] or stream in WinRT
Because the type of Vcard.Photo.Binval is byte[], So I must convert BitmapImage to  byte[] or stream in WinRT. Who can help me?
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Alex 2013-04-29, 14:25 #2
Member since Feb 2003 · 4449 posts · Location: Germany
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I use this code in some of our WPF projects. Have not tested it on WinRT yet. Does it work for you?

  1. public static Byte[] ByteBufferFromImage(BitmapImage imageSource)
  2. {
  3.     var ms = new MemoryStream();
  4.     var pngEncoder = new PngBitmapEncoder();
  5.     pngEncoder.Frames.Add(BitmapFrame.Create(imageSource));
  6.     pngEncoder.Save(ms);
  7.    
  8.     return ms.GetBuffer();
  9. }
  10.  
  11. public static BitmapImage ImageFromBuffer(Byte[] bytes)
  12. {
  13.     var stream = new MemoryStream(bytes);
  14.     var image = new BitmapImage();
  15.     image.BeginInit();
  16.     image.StreamSource = stream;
  17.     image.EndInit();
  18.     return image;
  19. }
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goodzhengcheng 2013-04-29, 14:29 #3
Member since Mar 2013 · 8 posts
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It seems does not work,there is no PngBitmapEncoder class in WinRT,and there is no Create method in BitmapFrame class.
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