/// <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);
}
}