XUnionRectWithRegion.3X11.z(3X11)



     X Version 11 (Release 5)                   XIntersectRegion(3X11)



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

     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



     Licensed material--property of copyright holder(s)         Page 1



                         X Version 11 (Release 5)
XIntersectRegion(3X11)



                    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), XDrawRectangle(3X11),
          XEmptyRegion(3X11)
          Xlib - C Language X Interface


























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