Hi Rob,
The trick here is to use gtk_tree_model_filter_convert_iter_to_child_iter().
That will get the iter that you need. It will work the same on both GTK2 and
GTK3. You have to be a little careful with gtk_tree_model_foreach(). It is easy
to add nodes and then the function will check ever
In a GtkTree I want to use a filter, and also extend the tree using
gtk_tree_model_foreach. The combination of the 2 gives problems.
In the function connected to gtk_tree_model_foreach I use the GtkTreeIter *iter
argument, which gives an error message:
Gtk-CRITICAL **: IA__gtk_tree_store_appen