Re: [gtkmm] get a reference from a Gtk::TreeValueProxy

[murrayc t-online de (Murray Cumming)]

On Fri, 2003-01-31 at 10:13, erwan ancel wrote:
> Yes, I mean instance :)
> 
> I started from this tutorial, and as it is said in the tutorial, I am
> putting custom datas that won't be displayed in a hidden column.
> This custom data is a complex class, and I cannot use it only with the '='
> operator. I have to obtain a reference (or pointer) to my instance.

I'm not sure whether it's possible to store non-Glib::Object-derived
classes by value in tree model columns. If that's what you are doing
then it would be interesting to see your actual compiler errors.

It should certainly be possible to store a pointer to the instances
though.
 
> 
>         Erwan
> 
> ----- Original Message -----
> From: "Murray Cumming" <murrayc t-online de>
> To: "erwan ancel" <erwan ancel free fr>
> Cc: "gtkmm-list" <gtkmm-list gnome org>
> Sent: Friday, January 31, 2003 9:24 AM
> Subject: Re: [gtkmm] get a reference from a Gtk::TreeValueProxy
> 
> 
> > On Fri, 2003-01-31 at 08:49, erwan ancel wrote:
> > > Hi,
> > >
> > > I don't manage to find a way to get a reference to the corresponding
> > > occurence
> >
> > Do you mean "instance"?
> >
> > >  of my class A from
> > > Gtk::TreeValueProxy<A>
> > >
> > > How can I do that ?
> >
> > I had to grep to find out what TreeValueProxy is. I don't think you
> > should be worrying about it - it's purely an intermediate type. You
> > should be able to do something like this:
> >
> > http://www.gtkmm.org/gtkmm2/docs/tutorial/html/ch08.html#id2843676
> > (See "Getting Values")
> >
> > If this isn't enough, what are you trying to do?
> >
> > --
> > Murray Cumming
> > murray usa net
> > www.murrayc.com
> >
> >
> 
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-- 
Murray Cumming
murray usa net
www.murrayc.com