Connect a ruler and a GtkImage

["KeK" <kek club-internet fr>]

Hello
Is it possible to connect a GtkRuler and a GtkImage? I mean i'd like the
pointer in the ruler to move when I move the cursor in the GtkImage

I've read in the tutorial that it is possible for a Ruler and a Drawing_area
but i tried with the Image and i failed. If it isn't possible, i will use
gtk_drawing_area but i have no docs for it and I don't know how to plot
single points into it.

Thank you