Re: Problem deriving GLArea widget

[Kjell Ahlstedt <kjell ahlstedt bredband net>]

Den 2016-04-24 kl. 12:42, skrev Kjell Ahlstedt:
> You've discovered a bug in Gtk::GLArea::signal_create_context(). I've 
> fixed it in the git repository.
> https://git.gnome.org/browse/gtkmm/commit/?id=d1ae01f3dc14dfbadb3e6288c6bdab5f4a1332b5 
And now I've made a better fix. In  this case Glib::unwrap_copy() is 
better than Glib::wrap(xxx, true). You'll notice a difference only if 
you provide your own signal handler for signal_create_context().
https://git.gnome.org/browse/gtkmm/commit/?id=574f41bdea5fabab05f444db89e46d9179263c5c
> Kjell
>
> Den 2016-04-22 kl. 22:01, skrev Bill McGrory:
> > Following up:
> > I got the included test program to work by making the following 
> > change in glarea.cc
> > At this point, I'm not sure if this is a complete and total fix, as I 
> > need to see if my full featured class can be used correctly.
> >
> > 588,592c588,590
> > <   if(base && base->create_context) {
> > <       Glib::RefPtr<Gdk::GLContext> 
> > retval(Glib::wrap((*base->create_context)(gobj()),true));
> > <       return retval;
> > <   }
> > <
> > ---
> > >   if(base && base->create_context)
> > >     return Glib::wrap((*base->create_context)(gobj()));
> > >
> >
> > I'm assuming it's the take_copy argument passed to wrap?