Modifies the coordinates of the window origin relative to the coordinates of the current window origin.
CPoint OffsetWindowOrg(
   int nWidth,
   int nHeight 
);
Parameters
- nWidth 
 Specifies the number of logical units to add to the current origin's x-coordinate.
- nHeight 
 Specifies the number of logical units to add to the current origin's y-coordinate.
Return Value
The previous window origin (in logical coordinates) as a CPoint object.
Requirements
Header: afxwin.h