public MainWindowModel()
{
IsUserPresent = false;
IsTrackingGaze = false;
IsTrackingGazeSupported = true;
// Create and start the WpfEyeXHost. Starting the host means
// that it will connect to the EyeX Engine and be ready to
// start receiving events and get the current values of
// different engine states. In this sample we will be using
// the UserPresence engine state.
_eyeXHost = new WpfEyeXHost();
// Register an status-changed event listener for UserPresence.
// NOTE that the event listener must be unregistered too. This is taken care of in the Dispose(bool) method.
_eyeXHost.UserPresenceChanged += EyeXHost_UserPresenceChanged;
_eyeXHost.GazeTrackingChanged += EyeXHost_GazeTrackingChanged;
// Start the EyeX host.
_eyeXHost.Start();
// Wait until we're connected.
if (_eyeXHost.WaitUntilConnected(TimeSpan.FromSeconds(5)))
{
// Make sure the EyeX Engine version is equal to or greater than 1.4.
var engineVersion = _eyeXHost.GetEngineVersion().Result;
if (engineVersion.Major != 1 || engineVersion.Major == 1 && engineVersion.Minor < 4)
{
IsTrackingGazeSupported = false;
}
}
}
public App()
{
_eyeXHost = new WpfEyeXHost();
_eyeXHost.Start();
}
