gnome-canvas and gnome-print

[Bill Guelker <wguelker concentric net>]

Hi, 

I'm writing a tablature application designed to generate tablature (vs.
musical notation) for stringed instruments.  I've been using an aa
gnome-canvas with great success.  Before I continue, I need to tackle the
hurdle of printing the canvas contents.  I know I should be able to use
gnome-print, but darned if I can figure out how.  Shouldn't I be able to
use gnome_print_rgbimage, or similar?  If so, how do I access the canvas'
RGB buffer?  Do I need to render each canvas item anew with gnome-print
routines?  I apologize if I'm not seeing the forest through the trees; I
don't know much about the low-level details of rendering graphics.  A
pointer in the right direction would be greatly appreciated. 

Thanks!

bill