WinSetCapture Parameter - hwnd

hwnd (HWND) - input

Handle of the window that is to receive all pointing device messages.

hwnd can take the special value HWND_THREADCAPTURE to capture the pointing device to the current thread rather than to a particular window. HWND_THREADCAPTURE is unique among window handles.

If hwnd is NULLHANDLE, pointing device capture is released.

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