/// <summary>
/// Shuts down the EyeTracking host.
/// </summary>
public void Shutdown()
{
_isShuttingDown = true;
if (!IsInitialized)
{
return;
}
print("Tobii EyeTracking is shutting down.");
if (_context != null)
{
// The context must be shut down before disposing.
try
{
_context.Shutdown(1000, false);
}
catch (InteractionApiException ex)
{
Debug.LogError("Tobii Engine context shutdown failed: " + ex.Message);
}
_context.Dispose();
_context = null;
}
if (_environment != null)
{
_environment.Dispose();
_environment = null;
}
}
/// <summary>
/// Cleans up any resources being used.
/// </summary>
/// <param name="isDisposing">true if managed resources should be disposed; otherwise, false.</param>
protected virtual void Dispose(bool isDisposing)
{
if (isDisposing)
{
if (_context != null && !_context.IsInvalid)
{
// The context must be shut down before disposing.
try
{
_context.Shutdown();
}
catch (InteractionApiException ex)
{
Debug.WriteLine("EyeX context shutdown failed: " + ex.Message);
}
_context.Dispose();
_context = null;
}
if (_environment != null)
{
_environment.Dispose();
_environment = null;
}
}
}
/// <summary>
/// Initializes the EyeX host and enables the connection to the EyeX Engine.
/// </summary>
public virtual void Start()
{
if (_context != null)
{
throw new InvalidOperationException("The EyeX host cannot be re-started.");
}
// Initialize the EyeX Engine client library.
_environment = Environment.Initialize(LogTarget.Trace);
// Create a context, register event handlers, and enable the connection to the engine.
_context = new Context(false);
_context.RegisterQueryHandlerForCurrentProcess(HandleQuery);
_context.RegisterEventHandler(HandleEvent);
_context.ConnectionStateChanged += OnConnectionStateChanged;
_screenBoundsStateAccessor.OnContextCreated(_context);
_displaySizeStateAccessor.OnContextCreated(_context);
_eyeTrackingDeviceStatusStateAccessor.OnContextCreated(_context);
_userPresenceStateAccessor.OnContextCreated(_context);
_userProfileNameStateAccessor.OnContextCreated(_context);
_context.EnableConnection();
// Execute deferred initialization logic.
while (_deferredInitialization.Count > 0)
{
_deferredInitialization.Dequeue().Invoke();
}
}
/// <summary>
/// Initializes the EyeX engine.
/// </summary>
public void InitializeEyeX()
{
if (IsInitialized)
{
return;
}
try
{
Tobii.EyeX.Client.Interop.EyeX.EnableMonoCallbacks("mono");
_environment = Environment.Initialize();
}
catch (InteractionApiException ex)
{
Debug.LogError("EyeX initialization failed: " + ex.Message);
}
catch (DllNotFoundException)
{
#if UNITY_EDITOR
Debug.LogError("EyeX initialization failed because the client access library 'Tobii.EyeX.Client.dll' could not be loaded. " +
"Please make sure that it is present in the Unity project directory. " +
"You can find it in the SDK package, in the lib/x86 directory. (Currently only Windows is supported.)");
#else
Debug.LogError("EyeX initialization failed because the client access library 'Tobii.EyeX.Client.dll' could not be loaded. " +
"Please make sure that it is present in the root directory of the game/application.");
#endif
return;
}
try
{
_context = new Context(false);
_context.RegisterQueryHandlerForCurrentProcess(HandleQuery);
_context.RegisterEventHandler(HandleEvent);
_context.ConnectionStateChanged += OnConnectionStateChanged;
_context.EnableConnection();
print("EyeX is running.");
}
catch (InteractionApiException ex)
{
Debug.LogError("EyeX context initialization failed: " + ex.Message);
}
}
/// <summary>
/// Cleans up any resources being used.
/// </summary>
/// <param name="isDisposing">true if managed resources should be disposed; otherwise, false.</param>
protected virtual void Dispose(bool isDisposing)
{
if (isDisposing)
{
if (_context != null && !_context.IsInvalid)
{
// The context must be shut down before disposing.
try
{
_context.Shutdown();
}
catch (InteractionApiException ex)
{
Debug.WriteLine("EyeX context shutdown failed: " + ex.Message);
}
_context.Dispose();
_context = null;
}
if (_environment != null)
{
_environment.Dispose();
_environment = null;
}
}
}
/// <summary>
/// Initializes the EyeX host and enables the connection to the EyeX Engine.
/// </summary>
public virtual void Start()
{
if (_context != null)
{
throw new InvalidOperationException("The EyeX host cannot be re-started.");
}
// Initialize the EyeX Engine client library.
_environment = Environment.Initialize(LogTarget.Trace);
// Create a context, register event handlers, and enable the connection to the engine.
_context = new Context(false);
_context.RegisterQueryHandlerForCurrentProcess(HandleQuery);
_context.RegisterEventHandler(HandleEvent);
_context.ConnectionStateChanged += OnConnectionStateChanged;
_screenBoundsStateAccessor.OnContextCreated(_context);
_displaySizeStateAccessor.OnContextCreated(_context);
_eyeTrackingDeviceStatusStateAccessor.OnContextCreated(_context);
_userPresenceStateAccessor.OnContextCreated(_context);
_userProfileNameStateAccessor.OnContextCreated(_context);
_userProfilesStateAccessor.OnContextCreated(_context);
_gazeTracking.OnContextCreated(_context);
_context.EnableConnection();
// Execute deferred initialization logic.
while (_deferredInitialization.Count > 0)
{
_deferredInitialization.Dequeue().Invoke();
}
}