The function uses the components of the specified GC to draw a line between the specified set of points (x1, y1) and (x2, y2). It does not perform joining at coincident endpoints. For any given line, does not draw a pixel more than once. If lines intersect, the intersecting pixels are drawn multiple times.
The function uses the components of the specified GC to draw npoints-1 lines between each pair of points (point[i], point[i+1]) in the array of structures. It draws the lines in the order listed in the array. The lines join correctly at all intermediate points, and if the first and last points coincide, the first and last lines also join correctly. For any given line, does not draw a pixel more than once. If thin (zero line-width) lines intersect, the intersecting pixels are drawn multiple times. If wide lines intersect, the intersecting pixels are drawn only once, as though the entire protocol request were a single, filled shape. treats all coordinates as relative to the origin, and treats all coordinates after the first as relative to the previous point.
The function draws multiple, unconnected lines. For each segment, draws a line between (x1, y1) and (x2, y2). It draws the lines in the order listed in the array of structures and does not perform joining at coincident endpoints. For any given line, does not draw a pixel more than once. If lines intersect, the intersecting pixels are drawn multiple times.
All three functions use these GC components: function, plane-mask, line-width, line-style, cap-style, fill-style, subwindow-mode, clip-x-origin, clip-y-origin, and clip-mask. The function also uses the join-style GC component. All three functions also use these GC mode-dependent components: foreground, background, tile, stipple, tile-stipple-x-origin, tile-stipple-y-origin, dash-offset, and dash-list.
and can generate and errors. can also generate a error.