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Manual Reference Pages  - XPolygonRegion (3X11)

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XPolygonRegion, XClipBox - generate regions

CONTENTS

Syntax
Arguments
Description

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

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.

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

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

XCreateGC(3X11), XDrawPoint(3X11), XDrawRectangle(3X11)
Xlib - C Language X Interface

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