Screen Record video in windows Phone 8

See more:

WinMobile

I am working on drawing app for windows phone 8.I want to capture video while I am drawing in screen is it possible? please give me any idea if u have, Actually it's possible in iOS I had worked on that but I was searching a lot in internet there is no help please let me give any idea how it will be possible.

I want to create video of whole drawing process in screen via code.

Thanks