XCreateRegion(3X11)

     NAME
          XCreateRegion, XSetRegion, XDestroyRegion - create or
          destroy regions

     SYNTAX
          Region XCreateRegion()

          XSetRegion(display, gc, r)
                Display *display;
                GC gc;
                Region r;

          XDestroyRegion(r)
                Region r;

     ARGUMENTS
          display   Specifies the connection to the X server.

          gc        Specifies the GC.

          r         Specifies the region.

     DESCRIPTION
          The XCreateRegion function creates a new empty region.

          The XSetRegion function sets the clip-mask in the GC to the
          specified region.  The region is specified relative to the
          drawable's origin.  The resulting GC clip origin is
          implementation-dependent.  Once it is set in the GC, the
          region can be destroyed.

          The XDestroyRegion function deallocates the storage
          associated with a specified region.

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