gtk_box_pack_start (GTK_BOX (bb), button, TRUE, TRUE, 5);
gtk_box_pack_start (GTK_BOX (box), bb, FALSE, FALSE, 5);
gtk_widget_show_all (box);
gtk_box_pack_start (GTK_BOX (bb), button, TRUE, TRUE, 5);
gtk_box_pack_start (GTK_BOX (box), bb, FALSE, FALSE, 5);
gtk_widget_show_all (box);