CPoint OffsetWindowOrg( int nWidth, int nHeight );
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.
Modifies the window origin relative to the coordinates of the current window origin.
The previous window origin (in logical coordinates) as a CPoint object.
CDC::GetWindowOrg, CDC::OffsetViewportOrg, CDC::SetWindowOrg, ::OffsetWindowOrg