XEmptyRegion(3X11)      COMMAND REFERENCE      XEmptyRegion(3X11)



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

SYNOPSIS
     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.





X Version 11            1 September 1988                        1

XEmptyRegion(3X11)      COMMAND REFERENCE      XEmptyRegion(3X11)



SEE ALSO
     XCreateRegion(3x11), XIntersectRegion(3x11)
     Xlib - C Language X Interface




















































X Version 11            1 September 1988                        2

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