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_new(), or the
window of its parent widget as returned by
gtk_widget_get_parent_window().
Widgets must indicate whether they will create their own #GdkWindow
by calling gtk_widget_set_has_window(). This is usually done in the
widget’s init() function.
Note that this function does not add any reference to @window.
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_new(), or the window of its parent widget as returned by gtk_widget_get_parent_window().
Widgets must indicate whether they will create their own #GdkWindow by calling gtk_widget_set_has_window(). This is usually done in the widget’s init() function.
Note that this function does not add any reference to @window.