NAME
    AndRegionRegion -- Perform 2d AND operation of one region
                      with second region, leaving result in second region.
SYNOPSIS
    status = AndRegionRegion(region1,region2)
      d0                       a0      a1
    BOOL AndRegionRegion(struct region *, struct region * );
FUNCTION
    Remove any portion of region2 that is not in region1.
INPUTS
    region1 - pointer to region structure
    region2 - pointer to region structure to use and for result
RESULTS
    status - return TRUE if successful operation
             return FALSE if ran out of memory
BUGS
SEE ALSO
    orregionregion() andrectregion() graphics/regions.h