Name
GrSubtractRegion -- Remove the area of one region from another
Synopsis
void GrSubtractRegion (
GR_REGION_ID dst_rgn,
GR_REGION_ID src_rgn1,
GR_REGION_ID src_rgn2
);
Parameters
- dst_rgn
A GR_REGION_ID region that will hold
the difference of src_rgn1 minus
src_rgn2.
- src_rgn1
The minuend region.
- src_rgn2
The subtrahend region.
Description
The GrSubtractRegion function
removes the area of src_rgn2 from
src_rgn1 and returns the difference in
dst_rgn.