code: def ccbox(msg="Shall I continue?", title=" ",
            choices=("C[o]ntinue", "C[a]ncel"), image=None,
            default_choice='Continue', cancel_choice='Cancel'):
      
      return boolbox(msg=msg,
                     title=title,
                     choices=choices,
                     image=image,
                     default_choice=default_choice,
                     cancel_choice=cancel_choice)
docs: Display a msgbox with choices of Continue and Cancel.
  
      The returned value is calculated this way::
  
          if the first choice ("Continue") is chosen,
            or if the dialog is cancelled:
              return True
          else:
              return False
  
      If invoked without a msg argument, 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
  
      :param str msg: the msg to be displayed
      :param str title: the window title
      :param list choices: a list or tuple of the choices to be displayed
      :param str image: Filename of image to display
      :param str default_choice: The choice you want highlighted
        when the gui appears
      :param str cancel_choice: If the user presses the 'X' close,
        which button should be pressed
  
      :return: True if 'Continue' or dialog is cancelled, False if 'Cancel'