Lines Matching refs:_Screen

2523         if isinstance(canvas, _Screen):
3662         Turtle._screen = _Screen()
3665 class _Screen(TurtleScreen):  class
3677         if _Screen._root is None:
3678             _Screen._root = self._root = _Root()
3679             self._root.title(_Screen._title)
3681         if _Screen._canvas is None:
3689             _Screen._canvas = self._root._getcanvas()
3690             TurtleScreen.__init__(self, _Screen._canvas)
3746         if _Screen._root is not None:
3747             _Screen._root.title(titlestring)
3748         _Screen._title = titlestring
3752         if root is _Screen._root:
3755             _Screen._root = None
3756             _Screen._canvas = None
3970 _make_global_funcs(_tg_screen_functions, _Screen,