The GetCurrentPositionEx function retrieves the current position in logical coordinates.
BOOL GetCurrentPositionEx(
| HDC hdc, | // handle of device context | 
| LPPOINT lpPoint | // address of structure receiving current position | 
| ); | 
If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero. To get extended error information, call GetLastError.