GtkWindow* gtk_application_get_window_by_id ( GtkApplication* application, guint id )
GtkApplicationWindow with the given ID.
The ID of a
GtkApplicationWindow can be retrieved with gtk_application_window_get_id().
Available since: 3.6
The window with ID
NULL if there is no window with this ID.
|The data is owned by the instance.|
|The return value can be |