Dude...lay down the crack pipe. It's making you post bullshit- and Anonymously at that.
Any OS? Really? This would mean you're using OpenCL or OpenGL/OpenGLES to do things- just for starters. But, in truth, there's no inbound/outbound pathway from or to the GPU (The GPU generally doesn't have I/O access to things and for good reasons...) without an additional OpenGL/OpenCL application as a front-end. Which would be VERY OS specific.
Sorry, but the person in question that claimed that it was possible hasn't the foggiest about what he was talking about. But...nice try.