Lines Matching refs:_Screen

2428         if isinstance(canvas, _Screen):
3553         Turtle._screen = _Screen()
3556 class _Screen(TurtleScreen):  class
3568         if _Screen._root is None:
3569             _Screen._root = self._root = _Root()
3570             self._root.title(_Screen._title)
3572         if _Screen._canvas is None:
3580             _Screen._canvas = self._root._getcanvas()
3581             TurtleScreen.__init__(self, _Screen._canvas)
3637         if _Screen._root is not None:
3638             _Screen._root.title(titlestring)
3639         _Screen._title = titlestring
3643         if root is _Screen._root:
3646             _Screen._root = None
3647             _Screen._canvas = None
3866 _make_global_funcs(_tg_screen_functions, _Screen,