This is a short blog post in whichVincent Leung talks about the WriteableBitmapEx library - a collection of extension methods for Silverlight’s WriteableBitmap.
The WriteableBitmap API is very minimalistic and there’s only the raw Pixels
array for such operations. The WriteableBitmapEx library tries to
compensate that with extensions methods that are easy to use like built
in methods. The library extends the WriteableBitmap class with
elementary and fast (2D drawing) functionality, conversion methods and
functions to combine (blit) WriteableBitmaps.