| Platform SDK: Windows GDI |
The SelectClipRgn function selects a region as the current clipping region for the specified device context.
int SelectClipRgn( HDC hdc, // handle to DC HRGN hrgn // handle to region );
The return value specifies the region's complexity and can be one of the following values.
| Value | Meaning |
|---|---|
| NULLREGION | Region is empty. |
| SIMPLEREGION | Region is a single rectangle. |
| COMPLEXREGION | Region is more than one rectangle. |
| ERROR | An error occurred. (The previous clipping region is unaffected.) |
Windows NT/Windows 2000: To get extended error Information, call GetLastError.
Only a copy of the selected region is used. The region itself can be selected for any number of other device contexts or it can be deleted.
The SelectClipRgn function assumes that the coordinates for a region are specified in device units.
To remove a device-context's clipping region, specify a NULL region handle.
Windows NT/2000: Requires Windows NT 3.1 or later.
Windows 95/98: Requires Windows 95 or later.
Header: Declared in Wingdi.h; include Windows.h.
Library: Use Gdi32.lib.