Blitting??

Right, I've given up on trying to work this out myself, so I'm going to post this all over the place and try to get some feedback off you guys...

THE PROGRAM:
Its a 3D game engine thingy. I wrote it in VB6 with my mate and then we converted it to C++. Its very nice, but has to be in C++ when you start using HUGE terrains like what we are.

THE PROBLEM:
I need to be able to take screenshots and I can't. I'm guessing that games do it by blitting the game window to an area of memory and then saving it or something?

All answers in Vis Basic or C++, I really don't mind, just so long as it works!

Thanks!

FJ

And yes, I have posted this message in tons of places. Not sure if its supposed to be in C++, VB, Games and Graphics or the API section. Maybe we should start a thread to discuss this (or maybe not).