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


NAME
      XEmptyRegion, XEqualRegion, XPointInRegion, XRectInRegion - determine if
      regions are empty or equal

SYNTAX
      Bool XEmptyRegion(r)
            Region r;

      Bool XEqualRegion(r1, r2)
            Region r1, r2;

      Bool XPointInRegion(r, x, y)
            Region r;
            int x, y;

      int XRectInRegion(r, x, y, width, height)
            Region r;
            int x, y;
            unsigned int width, height;

ARGUMENTS
      r         Specifies the region.

      r1
      r2        Specify the two regions.

      width
      height    Specify the width and height, which define the rectangle.

      x
      y         Specify the x and y coordinates, which define the point or the
                coordinates of the upper-left corner of the rectangle.

DESCRIPTION
      The XEmptyRegion function returns True if the region is empty.

      The XEqualRegion function returns True if the two regions have the same
      offset, size, and shape.

      The XPointInRegion function returns True if the point (x, y) is contained
      in the region r.

      The XRectInRegion function returns RectangleIn if the rectangle is
      entirely in the specified region, RectangleOut if the rectangle is
      entirely out of the specified region, and RectanglePart if the rectangle
      is partially in the specified region.

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




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