Save a WriteableBitmap as an image to SharePoint document library

I have a requireemnt in which I have to upload a WriteableBitmap generated开发者_运维百科 as an image in to SharePoint document library. Can anyone please help me ? Thank you.

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Heres an extension method to convert the WriteableBitmap to byte array

public static byte[] ToByteArray(this WriteableBitmap bmp)
{
   int[] p = bmp.Pixels;
   int len = p.Length * 4;
   byte[] result = new byte[len]; // ARGB
   Buffer.BlockCopy(p, 0, result, 0, len);
   return result;
}

taken from this blog http://kodierer.blogspot.com/2009/11/convert-encode-and-decode-silverlight.html

To upload it to a document library with the Client OM you can use this tutorial http://www.zimmergren.net/archive/2010/06/10/sp-2010-uploading-files-using-the-client-om-in-sharepoint-2010.aspx

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If you're working with SharePoint 2010, you can use the client object model for Silverlight. It's very similar to the client object model for .net, except that it's asynchronous.

Here's an example