XIntersectRegion(3X11)               BSD                XIntersectRegion(3X11)



NAME
     XIntersectRegion, XUnionRegion, XUnionRectWithRegion, XSubtractRegion,
     XXorRegion, XOffsetRegion, XShrinkRegion - region arthmetic

SYNTAX
     XIntersectRegion(sra, srb, dr_return)
           Region sra, srb, dr_return;

     XUnionRegion(sra, srb, dr_return)
           Region sra, srb, dr_return;

     XUnionRectWithRegion(rectangle, src_region, dest_region_return)
          XRectangle *rectangle;
          Region src_region;
          Region dest_region_return;

     XSubtractRegion(sra, srb, dr_return)
           Region sra, srb, dr_return;

     XXorRegion(sra, srb, dr_return)
           Region sra, srb, dr_return;

     XOffsetRegion(r, dx, dy)
           Region r;
           int dx, dy;

     XShrinkRegion(r, dx, dy)
           Region r;
           int dx, dy;

ARGUMENTS
     dest_region_return
               Returns the destination region.

     dr_return Returns the result of the computation.  ds Dy move or shrink

     dx
     dy        Specify the x and y coordinates, which define the amount you
               want to  the specified region.

     r         Specifies the region.

     rectangle Specifies the rectangle.

     sra
     srb       Specify the two regions with which you want to perform the
               computation.

     src_region
               Specifies the source region to be used.

DESCRIPTION
     The XIntersectRegion function computes the intersection of two regions.

     The XUnionRegion function computes the union of two regions.

     The XUnionRectWithRegion function updates the destination region from a
     union of the specified rectangle and the specified source region.

     The XSubtractRegion function subtracts srb from sra and stores the
     results in dr_return.

     The XXorRegion function calculates the difference between the union and
     intersection of two regions.

     The XOffsetRegion function moves the specified region by a specified
     amount.

     The XShrinkRegion function reduces the specified region by a specified
     amount.  Positive values shrink the size of the region, and negative
     values expand the region.

SEE ALSO
     XCreateRegion(3X11), XEmptyRegion(3X11),
     Xlib - C Language X Interface