rem: guint * data, GCallback hook )
add: gint * data, GCallback hook )
context: GtkWidget *new_radiogroup_with_title ( GtkWidget * parent,				       gchar * title, gchar * choice1, gchar * choice2,				       guint * data, GCallback hook ){    GtkWidget * paddingbox;    paddingbox = new_paddingbox_with_title (parent, FALSE, COLON(title));    gtk_box_pack_start (GTK_BOX(paddingbox), new_radiogroup ( choice1, choice2, data, hook ), 			FALSE, FALSE, 0 );    return paddingbox;}