NAME 
       OrRegionRegion -- Perform 2d OR operation of one region
                       with second region, leaving result in second region

   SYNOPSIS 
       status = OrRegionRegion(region1,region2)
         d0                       a0      a1

        bool orregionregion( struct region *, struct region * );

   FUNCTION 
       If any portion of region1  is not in the region then add
       that portion to the region2

   INPUTS 
       region1 - pointer to region structure
       region2 - pointer to region structure

   RESULTS
        status - return TRUE if successful operation
                 return FALSE if ran out of memory

   BUGS 

   SEE ALSO
        orrectregion() graphics/regions.h