#GtkTreeModel, #GtkTreeView
</para>
+<!-- ##### SECTION Stability_Level ##### -->
+
+
+<!-- ##### SECTION Image ##### -->
+
+
<!-- ##### STRUCT GtkTreeSortable ##### -->
<para>
@b: Another #GtkTreeIter in @model
@user_data: Data passed when the compare func is assigned e.g. by
gtk_tree_sortable_set_sort_func()
-@Returns:
+@Returns: a negative integer, zero or a positive integer depending on whether
+ @a sorts before, with or after @b
<!-- ##### FUNCTION gtk_tree_sortable_sort_column_changed ##### -->