GtkDrawingArea question

["Sergei O. Naoumov" <serge physics unc edu>]

Hi!
I am trying to marry GNU plotutils and GtkDrawingArea. GNU plotutils
needs two objects. One is an X's Display*, and the other should be
Drawable*. My question is how do I get those from an object that is
declared as GtkDrawingArea?

I guess, the drawable will be just darea->window, what about the second
one?

Thanks,
		Sergei