XEmptyRegion(3X11)                   BSD                    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