tree_view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(tree_view));
gtk_tree_selection_set_mode(GTK_TREE_SELECTION(selection), GTK_SELECTION_BROWSE);
tree_view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(tree_view));
gtk_tree_selection_set_mode(GTK_TREE_SELECTION(selection), GTK_SELECTION_BROWSE);