X Version 11 (Release 6.1)

XPolygonRegion(X3xlib)

XPolygonRegion -- generate regions

Synopsis

   Region XPolygonRegion(points, n, fill_rule)
         XPoint points[];
         int n;
         int fill_rule;
   
   XClipBox(r, rect_return)
         Region r;
         XRectangle *rect_return;

Arguments

fill_rule: Specifies the fill-rule you want to set for the specified GC. You can pass EvenOddRule or WindingRule.
n: Specifies the number of points in the polygon.
points: Specifies an array of points.
r: Specifies the region.
rect_return: Returns the smallest enclosing rectangle.

Description

The XPolygonRegion function returns a region for the polygon defined by the points array. For an explanation of fill_rule, see XCreateGC(X3xlib).

The XClipBox function returns the smallest rectangle enclosing the specified region.

References

XCreateGC(X3xlib), XDrawPoint(X3xlib), XDrawRectangle(X3xlib)
Xlib - C Language X Interface