This function specifies which window point maps to the viewport origin (0,0).
SetWindowOrgEx( HDC hdc, int X, int Y, LPPOINT lpPoint );
[in] Handle to the device context.
[in] Specifies the x-coordinate, in logical units, of the new window origin.
[in] Specifies the y-coordinate, in logical units, of the new window origin.
[out] Pointer to a POINT structure that receives the previous origin of the window, in logical units. If lpPoint is NULL, this parameter is not used.
A nonzero value indicates success. Zero indicates failure. To get extended error information, call GetLastError.