Widget.setWindow

Sets a widget’s window. This function should only be used in a widget’s #GtkWidget::realize implementation. The window passed is usually either new window created with [gdk.window.Window.new_], or the window of its parent widget as returned by [gtk.widget.Widget.getParentWindow].

Widgets must indicate whether they will create their own #GdkWindow by calling [gtk.widget.Widget.setHasWindow]. This is usually done in the widget’s init() function.

Note that this function does not add any reference to window.