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XPolygonRegion, XClipBox - generate regions
Region
XPolygonRegion(points, n, fill_rule)
XPoint points[];
int n;
int fill_rule;
XClipBox(r, rect_return)
Region r;
XRectangle *rect_return;
Specifies the fill-rule you want to set for the specified
GC. You can pass
EvenOddRule
or
WindingRule.
Specifies the number of points in the polygon.
Specifies an array of points.
Specifies the region.
Returns the smallest enclosing rectangle.
The XPolygonRegion function returns a region for the polygon defined by the points array. For an explanation of fill_rule, see XCreateGC(3X11).
The
XClipBox
function returns the smallest rectangle
enclosing the specified region.
XCreateGC(3X11), XDrawPoint(3X11), XDrawRectangle(3X11)
Xlib -- C Language X Interface