>>= keybd_event(VK_SNAPSHOT, 0, 0, 0)
>
>Interesting. You didn't have to send the make and break codes?

Usually, yes, and probably this would be the correct approach. I just wanted to say that keybd_event worked for me. I guess that in this case the screen shot is taken when the key is pressed, not when it's released. So, it works with only the key down event.

Vlad