XPolygonRegion, XClipBox - generate regions
Region XPolygonRegion(XPoint points[], int n, int fill_rule); |
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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. |
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n |
Specifies the number of points in the polygon. |
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points |
Specifies an array of points. |
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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(3), XDrawPoint(3), XDrawRectangle(3)
Xlib - C Language X Interface