There were like 2 or 3 or a billion posts with the same question: How do you simulate a mouse click?
The answer was the same: Find the control's hWnd, and SendMessage with wMsg as WM_CLICK or 2 SendMessage's with wMsg as WM_LBUTTONDOWN then WM_LBUTTONUP.

New question arose: How do you simulate a mouse click, but not clicking the hWnd, but clicking an area of the screen (Click X, Y)?

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- Yonatan