Win32 API prevent standby

What is the Win32 api function that prevents the system from going into standby?

Some progra开发者_开发技巧ms use it, which is pretty annoying in my opinion.

I know there's a couple of WM_SYSCOMMAND messages you can trap to prevent the screensaver from coming on..

SetThreadExecutionState. There's no Get and it doesn't take a thread handle. Done.