what if I don't call gtk_main()?

[fabien derreal <fabien derreal enst fr>]

I'm writing a little GUI to monitor the evolution of a program. It
doesn't require any user's action, buy only shows how figures evolve.
(no callbacks used)

Do I need to call Gtk_main() to have the window react normally, or can I
simply create the window at the beggining and change the labels when
needed?

Thanx