gtk3 display/windowmgr interaction

[Roger Davis <rbd soest hawaii edu>]

Hi all,

I have two questions with regard to gtk3 and its interaction with the 
window manager and X11 (or other) display.

(1) Is there a way to precisely position (or at least request such a 
position for) a toplevel window? gtk_window_set_postion() seems to provide 
only very limited positioning ability (e.g., centering). My app has 
multiple toplevel windows and I would like to arrange them very precisely 
for minimal overlap (without user interaction if possible). I see other 
apps doing this (gimp, I think) so there must be a way, but I have not 
been able to crack the code myself.

(2) Is there a way to get information about your display environment, 
e.g., screen dimensions and pixel sizes, without actually creating any 
widgets? Right now I'm getting this info by making (but not mapping) a 
toplevel window, then calling gtk_window_get_screen(), 
gdk_screen_get...(), etc., and then destroying the window. Seems like a 
waste as I would assume that gtk_init() is actually opening the display 
and hence this info should be available immediately after it's called. Not 
a major roadblock here, but it does seem a bit kludgy. I would ideally 
like to have this information before creating any toplevel windows (or 
widgets) at all.

Thanks,

Roger Davis
Univ. of Hawaii