/// <summary>
/// Start gaze watcher and declare watcher event handlers.
/// </summary>
private void StartGazeDeviceWatcher()
{
if (gazeDeviceWatcher == null)
{
gazeDeviceWatcher = GazeInputSourcePreview.CreateWatcher();
gazeDeviceWatcher.Added += this.DeviceAdded;
gazeDeviceWatcher.Updated += this.DeviceUpdated;
gazeDeviceWatcher.Start();
}
}
private GazePointer()
{
NonInvokeGazeTargetItem = new NonInvokeGazeTargetItem();
// Default to not filtering sample data
Filter = new NullFilter();
_gazeCursor = new GazeCursor();
// timer that gets called back if there gaze samples haven't been received in a while
_eyesOffTimer = new DispatcherTimer();
_eyesOffTimer.Tick += OnEyesOff;
// provide a default of GAZE_IDLE_TIME microseconds to fire eyes off
EyesOffDelay = GAZE_IDLE_TIME;
InitializeHistogram();
_devices = new List <GazeDevicePreview>();
_watcher = GazeInputSourcePreview.CreateWatcher();
_watcher.Added += OnDeviceAdded;
_watcher.Removed += OnDeviceRemoved;
_watcher.Start();
}
