Re: AboutDialog url hook not working?

["Jonathon Jongsma" <jonathon jongsma gmail com>]

On 6/12/06, Murray Cumming <murrayc murrayc com> wrote:
> >   I've also tried
> > building it against my jhbuild gtkmm installation, and the same thing
> > happens.  I haven't found an easy way of trying an earlier version.  I
> > haven't done any hard-core digging yet, i thought I'd check first to
> > see whether anybody else has noticed this.
>
> It doesn't work for me either. I guess theoretically I could have broken
> it with my recent changes, but I can't see anything obvious by looking
> at gtk/src/about.ccg.

OK, so it's not just me then.  (by the way, I assume you mean
gtk/src/aboutdialog.ccg?).  I think it must be in gtkmm though,
because url buttons in plain-GTK+ applications still seem to work for
me.  It seems almost like the callback is not being registered.  But
now that I know that other people are seeing this, I'll look into it a
bit more.

> Something seems to be wrong somewhere though. Valgrind reports this when
> I click on the link:
>
> ==27202==    at 0x4171B49:
> SignalProxy_ActivateLink_gtk_callback(_GtkAboutDialog*, char const*,
> void*) (slot_base.h:273)
> ==27202==    by 0x43C4190: activate_url (gtkaboutdialog.c:1627)
> ==27202==    by 0x48BBDF2: g_cclosure_marshal_VOID__VOID (gmarshal.c:77)
> ==27202==    by 0x48AEEFE: g_closure_invoke (gclosure.c:490)
> ==27202==    by 0x48BEEA4: signal_emit_unlocked_R (gsignal.c:2438)
> ==27202==    by 0x48C09C9: g_signal_emit_valist (gsignal.c:2197)
> ==27202==    by 0x48C0D18: g_signal_emit (gsignal.c:2241)
> ==27202==    by 0x43DD991: gtk_button_clicked (gtkbutton.c:889)
> ==27202==    by 0x43DFA22: gtk_real_button_released (gtkbutton.c:1484)
> ==27202==    by 0x48BBDF2: g_cclosure_marshal_VOID__VOID (gmarshal.c:77)
> ==27202==    by 0x48AE8CE: g_type_class_meta_marshal (gclosure.c:567)
> ==27202==    by 0x48AEEFE: g_closure_invoke (gclosure.c:490)
> ==27202==    by 0x48BF1FB: signal_emit_unlocked_R (gsignal.c:2368)
> ==27202==    by 0x48C09C9: g_signal_emit_valist (gsignal.c:2197)
> ==27202==    by 0x48C0D18: g_signal_emit (gsignal.c:2241)
> ==27202==    by 0x43DD90E: gtk_button_released (gtkbutton.c:881)
> ==27202==    by 0x43DEF28: gtk_button_button_release (gtkbutton.c:1377)
> ==27202==    by 0x44B76D7: _gtk_marshal_BOOLEAN__BOXED
> (gtkmarshalers.c:83)
> ==27202==    by 0x48AE8CE: g_type_class_meta_marshal (gclosure.c:567)
> ==27202==    by 0x48AEEFE: g_closure_invoke (gclosure.c:490)
> ==27202==  Address 0x521B2FC is 4 bytes inside a block of size 44 free'd
> ==27202==    at 0x401D268: operator delete(void*)
> (vg_replace_malloc.c:246)
> ==27202==    by 0x4756196: sigc::slot_base::~slot_base()
> (slot_base.cc:101)
> ==27202==    by 0x41BD28B: Gtk::Main::run(Gtk::Window&) (slot.h:422)
> ==27202==    by 0x8049CB3: main
> (in /home/murrayc/cvs/gnome216/gtkmm/a.out)

So nothing happens after it reaches
SignalProxy_ActivateLink_gtk_callback?  Is that what you're trying to
show?  I'm not completely sure what I'm looking for here...

Thanks,
Jonner