Re: all these backend issues ?

["Matthias Clasen" <Matthias Clasen poet de>]

> > testtreeview
> >   Clicking on any colum header opens a new, empty window and produces
 > >   Gtk-CRITICAL **: file gtkcontainer.c: line 855: assertion `widget !=
> >  NULL'   failed
>
> This one is a consequence of the following code in
gtk+/tests/prop-editor.c:
>
> static void
> get_param_specs (GType         type,
>                 GParamSpec ***specs,
>                gint         *n_specs)
> {
>   GObjectClass *class = g_type_class_peek (type);
>
>   /* We count on the fact we have an instance, or else we'd have
>    * to use g_type_class_ref ();
>    */
>
>   /* Use private interface for now, fix later */
>   *specs = NULL; /* class->property_specs; */
>   *n_specs = 0; /* class->n_property_specs; */
> }
>
>
> which in turn leads properties_from_type to return NULL instead of a
widget.
> Don't know if this is easy to fix.

Looking through gobject.h I found g_object_class_list_properties which seems
just what is needed
to fix this. A patch can be found in #58609.

Matthias