drawing lines (help please)

[Mike Holme <M Holme mmu ac uk>]

Hi,

    I'm finding it hard to find a simple example of drawing coloured
lines. I have code that draws black
or white lines but I also need green. Another problem is that my drawing

area is grey and I want it to be
white. Could somebody show me how to accomplish this please.

My current code looks like this :-

gdk_draw_line(widget->window, widget->style->black_gc, x1, y1, x2, y2);

 where widget is the first parameter to the "expose" callback.

I've tried the obvious, green_gc, but no such luck !

Thank you very much,
Mike