SWI-Prolog -- win_insert_menu

Documentation
- Reference manual
  - Built-in Predicates
    - Operating System Interaction
      - Controlling the swipl-win.exe console window
        
        window_title/2
        
        win_window_pos/1
        
        win_window_color/2
        
        win_has_menu/0
        
        win_insert_menu/2
        
        win_insert_menu_item/4
- Packages

win_insert_menu_item(+Pulldown, +Label, +Before, :Goal)

Add an item to the named Pulldown menu. Label and Before are handled as in win_insert_menu/2, but the label - inserts a separator. Goal is called if the user selects the item.