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.
- x
- y
- Specify the x and y coordinates, which define the point or the coordinates
of the upper-left corner of the rectangle.
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