John Doe 25 This is the John Doe row Mary Unknown 50 This is the Mary Unknown row Copy Copy selected object into the clipboard gtk-copy Cut Cut selected object into the clipboard gtk-cut EditMenu _Edit FileMenu _File New Create a new file gtk-new Open Open a file gtk-open Paste Paste object from the Clipboard gtk-paste Quit Quit the program gtk-quit Save True Save a file gtk-save SaveAs Save with a different name gtk-save-as HelpMenu _Help About gtk-about GtkBuilder demo 250 440 GtkBuilder demo True True The menubar False True The toolbar False 1 automatic in True automatic True liststore1 3 Name list A list of person with name, surname and age columns Name 0 Surname 1 Age 2 2 True False 3