XEmptyRegion
NAME
XEmptyRegion, XEqualRegion, XPointInRegion, XRectInRegion - determine if regions are empty or equal
SYNTAX
Bool XEmptyRegion\^(\^Region r\^);
Bool XEqualRegion\^(\^Region r1\^, Region r2\^);
Bool XPointInRegion\^(\^Region r\^, int x\^, int y\^);
int XRectInRegion\^(\^Region r\^, int x\^, int y\^, unsigned
int width\^, unsigned int height\^);
ARGUMENTS
r
Specifies the region.
r1
r2
Specify the two regions.
width
height
Specify the width and height.
x
y
Specify the x and y coordinates.
DESCRIPTION
The
function returns
if the region is empty.
The
function returns
if the two regions have the same offset, size, and shape.
The
function returns
if the point (x, y) is contained in the region r.
The
function returns
if the rectangle is entirely in the specified region,
if the rectangle is entirely out of the specified region,
and
if the rectangle is partially in the specified region.
SEE ALSO
XCreateRegion(3X11),
XIntersectRegion(3X11)
