I'm not very experienced in c++ and gtkmm, so far (after reading
http://developer.gnome.org/gdk3/stable/gdk3-Threads.html)
I did protect the following graphics calls:

1) from non main threads
2) the glib timeout calls

are you saying I have to protect also every single gtk callback? This would
be very bad of gtkmm :(

Giuseppe.


Calling up the GDK global lock is not a good way to do it with gtkmm
> because (amongst other things) libsigc++ is not thread safe.  You might
> want to read the attachment to the now very old bug report at
> https://bugzilla.gnome.org/show_bug.cgi?id=512348 for an explanation of
> how to do it.  (The lack of priority given to threading issues might
> also be something you want to consider.)
>
> If you do want to use the global lock, you should in any event move the
> call to gdk_threads_enter() so that the instantiation of Gtk::Main is
> within it, as well as making sure that all access to libsigc++ objects
> by multiple threads, including any unseen access arising from the
> operation of sigc::trackable, are within a mutex (which might of
> course be the global lock).
>
> Chris
>
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