wpf_player.ObservableStream.launchEvent C# (CSharp) Méthode

        private void launchEvent()
        {
            if ((waiting) && (Position >= positionWaited))
            {
                waiting = false;
                OnWaitedPositionReached(new EventArgs());
            }
            if ((Position == Length) || ((Position - lastLaunchedPosition) > 1024))
            {
                lastLaunchedPosition = Position;
                OnPositionChanges(new EventArgs());
            }
        }