Re: Getting a Widget Choice

[dhk <dhkuhl optonline net>]

Tristan Van Berkom wrote:
> You should always prefer using either gtk_builder_get_object(), or
> also using trustable API's like gtk_button_get_image_widget() for instance.
> (not sure if thats an existing api, but you get the idea).
>
> I.e. the composition of opaque composite widgets from GTK+ can
> change, possibly breaking unwary code which walks through the
> hierarchy checking widget types.
>
> Also, the composition of your GtkBuilder file may change, if you always
> access the elements by the keys you provide (i.e. the name field right now)
> then you wont run into trouble when changing your interface in the future.
>
> Cheers,
>          -Tristan
>
> On Sat, Feb 20, 2010 at 9:04 AM, dhk <dhkuhl optonline net> wrote:
> > When a widget can be gotten by using GTK builder functions or GTK Widget
> > functions, does it make a difference, or is one way better than the
> > other, for finding the widget.
> >
> > For example when I can get the same widget using either of the following
> > two calls, which one should I use and why?
> >
> >
> > GtkWidget *nb=NULL; /* A notebook widget */
> >
> > /* Call 1 */
> > nb=GTK_WIDGET(gtk_builder_get_object(gtk_builder, "notebook_name"));
> >
> > /* Call 2 */
> > nb=gtk_widget_get_ancestor(widget, GTK_TYPE_NOTEBOOK);
> >
> >
> > Thanks,
> >
> > dhk
> > _______________________________________________
> > gtk-app-devel-list mailing list
> > gtk-app-devel-list gnome org
> > http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list

Good point, I didn't think about the API's and the interface changing.

Thanks,

dhk