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XEmptyRegion(3X11)
X11R6


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.





SEE ALSO
  XCreateRegion(3X11), XIntersectRegion(3X11)

  Xlib -- C Language X Interface