private void GazePointDataStream_Next(object sender, StreamData <GazePointData> data)
{
var gazePoint = data.Data;
_lastGazePoint = new GazePoint(gazePoint.X, gazePoint.Y);
_signal.Set();
}
public override void Shutdown()
{
_gazePointDataStream.IsEnabled = false;
_gazePointDataStream.Next -= GazePointDataStream_Next;
_stopped = true;
_lastGazePoint = null;
_signal.Set();
}