XPointInRegion() XPointInRegion()
Name
XPointInRegion - determine if a point is inside a region.
Synopsis
Bool XPointInRegion(r, x, y)
Region r;
int x, y;
Arguments
r Specifies the region.
x Specify the x and y coordinates of the point relative to the region's origin.
y
Returns
True if the point is inside the region, else False.
Description
XPointInRegion() returns True if the point x, y is contained in the region r. A point exactly on the boundary of the region is considered
inside the region.
Regions are located using an offset from a point (the region origin) which is common to all regions. It is up to the application to inter-
pret the location of the region relative to a drawable.
For more information on regions, see Volume One, Chapter 6, Drawing Graphics and Text.
Structures
Region is a pointer to an opaque structure type.
See Also
XClipBox(), XCreateRegion(), XDestroyRegion(), XEmptyRegion(), XEqualRegion(), XIntersectRegion(), XOffsetRegion(), XPolygonRegion(),
XRectInRegion(), XSetRegion(), XShrinkRegion(), XSubtractRegion(), XUnionRectWithRegion(), XUnionRegion(), XXorRegion().
Xlib - Regions XPointInRegion()
