CombineRgn
This function combines two regions and stores the result in a third region.
The two regions are combined according to the specified mode.
int CombineRgn( HRGN hrgnDest, HRGN hrgnSrc1, HRGN hrgnSrc2, int fnCombineMode );
- hrgnDest
-
[in] Handle to a new region with dimensions defined by combining two other regions. (This region must exist before CombineRgn is called.)
- hrgnSrc1
-
[in] Handle to the first of two regions to be combined.
- hrgnSrc2
-
[in] Handle to the second of two regions to be combined.
- fnCombineMode
-
[in] Specifies a mode indicating how the two regions will be combined.
This parameter can be one of the following values.
Value Description RGN_AND
Creates the intersection of the two combined regions.
RGN_COPY
Creates a copy of the region identified by hrgnSrc1.
RGN_DIFF
Combines the parts of hrgnSrc1 that are not part of hrgnSrc2.
RGN_OR
Creates the union of two combined regions.
RGN_XOR
Creates the union of two combined regions except for any overlapping areas.