Re:Menu extern control

["Nickolay V. Shmyrev" <nshmyrev yandex ru>]

You should use GnomeApp from libgnomeui to create application menus and
toolbar. 

Those trick is done with GConf, there is keys in

/desktop/gnome/interface/toolbar_style
/desktop/gnome/interface/menus_detachable
.....

which describe how toolbar and menus should look like. Probably, you
need to add notification from gconf and change the toolbar look
accordingly. But it is already implemented in libgnomeui.

But my opinion is that it is not so great problem in application.