private static string CoreLibraryVersion()
{
using (var lib = new EyeTrackerCoreLibrary())
{
return(lib.LibraryVersion());
}
}
private bool InitializeEyeTracker()
{
Uri url = new EyeTrackerCoreLibrary().GetConnectedEyeTracker();
if (url == null)
{
return(false);
}
_eyeTracker = new EyeTracker(url);
if (_eyeTracker == null)
{
return(false);
}
_eyeTracker.EyeTrackerError += OnEyeTrackerError;
_eyeTracker.GazeData += OnEyeTrackerGazeData;
_trackingThread = new Thread(new ThreadStart(EyeTrackerEventLoop));
_trackingThread.Start();
if (!_eyeTracker.Connected)
{
_eyeTracker.Connect();
_eyeTracker.StartTracking();
}
return(true);
}
private static EyeTracker GetConnectedEyeTracker()
{
// Get the URL to the eye tracker.
var url = new EyeTrackerCoreLibrary().GetConnectedEyeTracker();
// eye tracker.
return(new EyeTracker(url));
}
public void Initialize()
{
Uri url = new EyeTrackerCoreLibrary().GetConnectedEyeTracker();
if (url == null)
{
throw new ApplicationException("No eye tracker found, check cable!");
}
else
{
tracker = new EyeTracker(url);
eventLoop = CreateAndRunEventLoopThread(tracker);
tracker.Connect();
}
}
public void Initialize()
{
Uri url = new EyeTrackerCoreLibrary().GetConnectedEyeTracker();
if (url == null)
{
throw new ApplicationException("No eye tracker found, check cable!");
}
else
{
tracker = new EyeTracker(url);
eventLoop = CreateAndRunEventLoopThread(tracker);
tracker.Connect();
}
}
/// <summary>
/// Initializes a new instance of the <see cref="CalibrationViewModel"/> class.
/// </summary>
/// <param name="dispatcher">Dispatcher used for marshaling operations to the main thread.</param>
/// <param name="eyeTrackerUrl">Eye tracker URL.</param>
/// <param name="exitAction">Delegate invoked to exit the application.</param>
public CalibrationViewModel(Dispatcher dispatcher, string eyeTrackerUrl, Action exitAction)
{
_dispatcher = dispatcher;
_exitAction = exitAction;
Stage = WpfCalibrationSample.Stage.Initializing;
ContinueCommand = new ActionCommand(Continue);
ExitCommand = new ActionCommand(exitAction);
EyePositions = new ObservableCollection <Point>();
Uri url;
if (eyeTrackerUrl == "--auto")
{
url = new EyeTrackerCoreLibrary().GetConnectedEyeTracker();
if (url == null)
{
Stage = WpfCalibrationSample.Stage.Error;
ErrorMessage = "No eye tracker found.";
return;
}
}
else
{
try
{
url = new Uri(eyeTrackerUrl);
}
catch (UriFormatException)
{
Stage = WpfCalibrationSample.Stage.Error;
ErrorMessage = "Invalid eye tracker URL.";
return;
}
}
InitializeEyeTracker(url);
}
public static void Main(string[] args)
{
Uri url = null;
if (args.Length == 1)
{
if (args[0] == "--auto")
{
url = new EyeTrackerCoreLibrary().GetConnectedEyeTracker();
if (url == null)
{
Console.WriteLine("No eye tracker found");
return;
}
}
else if (args[0] == "--list")
{
ListConnectedEyeTrackers();
return;
}
else
{
url = new Uri(args[0]);
}
}
else
{
Console.WriteLine("usage: MinimalTrackerNet {url|--auto|--list}");
return;
}
IEyeTracker tracker = null;
Thread thread = null;
try
{
Console.WriteLine("TobiiGazeCore DLL version: {0}", CoreLibraryVersion());
Console.WriteLine("Creating eye tracker with url {0}.", url);
tracker = new EyeTracker(url);
tracker.EyeTrackerError += EyeTrackerError;
tracker.GazeData += EyeTrackerGazeData;
thread = CreateAndRunEventLoopThread(tracker);
Console.WriteLine("Connecting...");
tracker.Connect();
Console.WriteLine("Connected");
// Good habit to start by retrieving device info to check that communication works.
PrintDeviceInfo(tracker);
Console.WriteLine("Start tracking...");
tracker.StartTracking();
Console.WriteLine("Tracking started");
// Let eye tracker track for 20 s.
Thread.Sleep(20000);
Console.WriteLine("Stop tracking...");
tracker.StopTracking();
Console.WriteLine("Stopped tracking");
Console.WriteLine("Disconnecting...");
tracker.Disconnect();
Console.WriteLine("Disconnected");
}
catch (EyeTrackerException ex)
{
Console.WriteLine(ex.Message);
}
finally
{
if (thread != null)
{
tracker.BreakEventLoop();
thread.Join();
}
if (tracker != null)
{
tracker.Dispose();
}
}
}
