Basically, I want GDI-type functionality in WPF, where I can write pixels to a bitmap and update and display that bitmap through WPF. Note, I need to be able to animate the bitmap on the fly by updating pixels in response to mouse movements. I've read that InteropBitmap is perfect for this, as you can write to pixels in memory and copy the memory location to the bitmap--but I don't have any good examples to go by.

Does anyone know of any good resources, tutorials, or blogs for using the InteropBitmap or some other classes for doing high-performance 2D graphics in WPF?