XIntersectRegion(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
                Specifies the source region to be used.




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


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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