Get the top left position of a desktop in Windows screen coordinates.
ADLX_RESULT TopLeft (ADLX_Point * locationTopLeft)
[out]locationTopLeft ADLX_Point* The pointer to a variable where the top left position is returned.
If the top left position is successfully returned, ADLX_OK is returned.
If the top left position is not successfully returned, an error code is returned.
Refer to ADLX_RESULT for success codes and error codes.
The desktop top left position is measured in screen coordinates.