Re: Equivalent of the gtk g_object_ref/unref functions in gtkmm?

["Paul Davis" <pjdavis engineering uiowa edu>]

On 3/26/07, Jef Driesen <jefdriesen hotmail com> wrote:
> Murray Cumming wrote:
> > On Mon, 2007-03-26 at 16:30 +0200, Jef Driesen wrote:
> >> Jonathon Jongsma wrote:
> >>> On 3/26/07, Jef Driesen <jefdriesen hotmail com> wrote:
> >>>> The application works fine, but closing the main window results in a
> >>>> segmentation fault (core dump). As far as I can tell (from a gdb
> >>>> backtrace) the crash is not in my own code, but somewhere inside the
> >>>> gtk(mm) library.
> >>> Could you provide the backtrace?  that might be helpful information.
> >> Sometimes I don't get the segmentation fault, but only a large number of
> >> errors. See attachment for both the backtrace and the errors.
> >
> > If you get glib errors, try debuggin with --g-fatal-warnings, or with a
> > breakpoing on g_log. Then you'll get a backtrace at the relevant point.
>
> Backtrace attached, although it doesn't seem to provide much more
> information to me.
>
> > valgrind's memcheck is also incredibly helpful. Trust us on this. You
> > won't regret trying it.
>
> I get lots of errors from valgrind, but I also get them for the trivial
> program
>
> int main (int argc, char *argv[])
> {
>      Gtk::Main kit(argc, argv);
>      Gtk::Window window;
>      kit.run(window);
>      return 0;
> }
>
> But to be honest I never used valgrind before, so I could be using it wrong.
>
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By chance, does your vbox3 that you pull out of glade contain a
Gtk::Menu? I seem to remember reading somewhere about a problem
pulling the menu out of glade but not the window that contains it.

Although, I can't recall this ever happening to me...

You might try having your Application class have the top level window
as a member variable that gets pulled out of the glade file instead of
inheriting from Gtk::Window.  You should be able to test that in about
5 minutes and see if it makes a difference.

HTH,
Paul Davis