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Table of Contents
XEmptyRegion, XEqualRegion,
XPointInRegion, XRectInRegion - determine if regions are empty or equal
- 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);
- r
- Specifies
the region.
- r1
- r2
- Specify the two regions.
- width
- height
- Specify the width and height, which define the rectangle. or the
coordinates of the upper-left corner of the rectangle
- x
- y
- Specify the x and y coordinates, which define the point.
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.
XCreateRegion(3X11)
,
XIntersectRegion(3X11)
Xlib - C Language X Interface
Table of Contents
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