XEmptyRegion(3X) XEmptyRegion(3X)
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
- 1 -
XEmptyRegion(3X) XEmptyRegion(3X)
XCreateRegion(3X11), XIntersectRegion(3X11)
Xlib Programming Manual
- 2 -