You are probably fighting a losing battle. Widgets
really aren't what you want, most likely. Consider
using a GtkDrawingArea or
the GnomeCanvas to create
your custom display.
If you really need interactive widgets, such as a GtkEntry or GtkButton, you can try to use GtkLayout or GtkFixed.
If you have very specialized needs, you probably need
to write your own widget. the
chapter called Writing a
GtkWidget tells you how to do so.
