Menu Bars And Menus

GTK menu bars are complicated creatures. To have a menu bar with menus, you first create a gtk_menu_bar (gtkmenubar.h), place a set of gtk_menu_item elements (gtkmenuitem.h) in it, attach a gtk_menu (gtkmenu.h) to each of them, and finally fill those menus with gtk_menu_item elements:

/* create a new menu bar. make it visible. */
GtkWidget* menu_bar = gtk_menu_bar_new();
gtk_widget_show(menu_bar);

/* create a 'file' menu for our menu bar. */
GtkWidget* menu_file = gtk_menu_new();

/* create a 'quit' menu item, give it an 'activate' callback. */
GtkWidget* menu_file_quit = gtk_menu_item_new_with_label("Quit");
gtk_widget_show(menu_file_quit);
gtk_signal_connect_object(GTK_OBJECT(menu_file_quit), "activate",
                          GTK_SIGNAL_FUNC(exit_cb), NULL);

/* add the 'quit' option to the 'file' menu. */
gtk_menu_append(GTK_MENU(menu_file), menu_file_quit);