A graphics port.
A description sequence.
graphics-state parameters passed as keyword arguments.
draw-polygon draws a polygon using alternating
values in the
argument as the vertices. When
is true the edge from the last vertex to the first to be drawn. When
is true a filled, closed polygon is drawn; the
argument is ignored if
transform, foreground, background, operation, thickness, scale-thickness, dashed, dash, line-end-style, line-joint-style , mask , pattern , shape-mode and compositing-mode from port 's graphics-state are all used, unless overridden in args . Additionally on X11/Motif only, stipple is used.
CAPI User Guide and Reference Manual (Macintosh version) - 3 Aug 2017