Underlining in menu's

[Jack L Calaway <jcalaway ix netcom com>]

G'day:

  How do I underline a character in a menu label when using these functions:

    gtk_menu_item_new_with_label()
    gtk_check_menu_item_new_with_label()
    gtk_radio_menu_item_new_with_label()
    gtk_menu_item_new_with_label()
    gtk_menu_item_new_with_label()

  IE: is there a function like "gtk_label_set_pattern()" for menu's?

  Thanks
  Jack