XamMapz.Map.OnMapMessage C# (CSharp) Метод

        protected virtual void OnMapMessage(MapMessage message)
        {
            if (message is ViewChangeMessage)
            {
                var msg = (ViewChangeMessage)message;
                Region = msg.Span;
                if (ViewChanged != null)
                    ViewChanged(this, new MapViewChangeEventArgs(msg.Span, msg.ZoomLevel));
                Debug.WriteLine("ViewChangeMessage recieved:\n\tPosition: {0} {1}", msg.Span.Center.Latitude, msg.Span.Center.Longitude);
            }
        }