code: def ccbox(message="Shall I continue?", title=""):
      
      choices = ["Continue", "Cancel"]
      if title == None:
          title = ""
      return boolbox(message, title, choices)
docs: Original doc:
      Display a message box with choices of Continue and Cancel.
      The default is "Continue".
      Returns returns 1 if "Continue" is chosen, or if
      the dialog is cancelled (which is interpreted as
      choosing the default).  Otherwise returns 0.
  
      If invoked without a message parameter, displays a generic request for a confirmation
      that the user wishes to continue.  So it can be used this way:
  
          if ccbox(): pass # continue
          else: sys.exit(0)  # exit the program