A graphics port.
A sequence of sequences of real numbers.
graphics-state parameters passed as keyword arguments.
function draws several polygons. The
argument should be a sequence containing sequences with alternating
values representing the vertices. The
arguments consists of groups of
as in draw-polygon.
transform, foreground, background, operation, thickness, scale-thickness, dashed, dash, line-end-style, line-joint-style , mask , shape-mode and compositing-mode from the port 's graphics-state are all used, unless overridden in args . Additionally on Unix only, stipple and pattern are used.
CAPI Reference Manual - 15 Dec 2011