| int SetMetaRgn(hdc) | |||||
| HDC hdc; | /* handle of device context | */ | |||
The SetMetaRgn function intersects the current clip-region for the specified device context with the current meta region and saves the combined region as the new meta region for the specified device context. The clip region is reset to a null region.
hdc
Identifies the device context.
The return value specifies the new clipping region's complexity. It can be any one of the following values:
| Value | Meaning |
| NULLREGION | Region is empty. |
| SIMPLEREGION | Region is a single rectangle. |
| COMPLEXREGION | Region is more than a single rectangle. |
| ERROR | Error occurred. The previous clipping region is unaffected. |
The current clipping of a device context is defined by the intersection of its clip region and its meta region.
The SetMetaRgn function should only be called after an application's original device context was saved by calling the SaveDC function.
GetMetaRgn