A graphics port.
A real number.
A real number.
A real number.
A real number.
General graphics port drawing arguments.
The
draw-line
function draws a line from (
from-x from-y
) to (
to-x to-y
). The graphics state parameters
transform, foreground, background, operation, thickness, scale-thickness, dashed, dash, line-end-style
and
mask
are used. Additionally on Unix only,
stipple, pattern
,
mask-x,
mask-y
are used.