Returns the GtkRoot widget of @widget.
This function will return %NULL if the widget is not contained inside a widget tree with a root widget.
GtkRoot widgets will return themselves here.
the root widget of @widget, or %NULL
See Implementation
Returns the GtkRoot widget of @widget.
This function will return %NULL if the widget is not contained inside a widget tree with a root widget.
GtkRoot widgets will return themselves here.