This method prevents drawing within invalid areas of a window by excluding an updated region in the window from the clipping region associated with the CDC object.
| Header file: | Afxwin.h |
| Platforms: | H/PC 2.0, Palm-size PC, H/PC Pro |
| Windows CE versions: | 1.0 and later |
| Complete documentation: | Visual C++ documentation |
int ExcludeUpdateRgn( CWnd* pWnd );