Gets a list of the [class@Gtk.
Window] instances associated with `application`.
The list is sorted by most recently focused window, such that the first element is the currently focused window. (Useful for choosing a parent for a transient window.)
The list that is returned should not be modified in any way. It will only remain valid until the next focus change or window creation or deletion.
this |
a `GtkApplication` |
a `GList` of `GtkWindow` instances |