WinGetPhysKeyState - Parameters

hwndDeskTop (HWND) - input

Desktop-window handle.

HWND_DESKTOP

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

sc (LONG) - input

Hardware scan code.

Contains the scan code value in the low-order byte, and zero in the high-order byte.

lKeyState (LONG) - returns

Key state.

This value is the OR combination of the following bits:

0x0001

The key has been pressed since the last time this function was issued, or since the system has been started if this is the first time the call has been issued.
0x8000
The key is down.

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