WinGetScreenPS - Parameters

hwndDeskTop (HWND) - input

Desktop-window handle.

HWND_DESKTOP

The desktop-window handle
Other
Specified desktop-window handle.

hpsScreenPS (HPS) - returns

Presentation-space handle.

A micro presentation space that can be used for drawing over the entire desktop window (the whole screen).

NULLHANDLE

hwndDeskTop is not HWND_DESKTOP or a desktop window handle obtained from the WinQueryDesktopWindow function.
Other
Presentation space handle.

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