private void StateChanged(object sender, EyeTrackingStateChangedEventArgs eyeTrackingStateChangedEventArgs)
{
// Forward state change to UI thread
if (InvokeRequired)
{
var updateStateDelegate = new UpdateStateDelegate(UpdateState);
Invoke(updateStateDelegate, new object[] { eyeTrackingStateChangedEventArgs });
}
else
{
UpdateState(eyeTrackingStateChangedEventArgs);
}
}
private void UpdateState(EyeTrackingStateChangedEventArgs eyeTrackingStateChangedEventArgs)
{
if (!string.IsNullOrEmpty(eyeTrackingStateChangedEventArgs.ErrorMessage))
{
InfoMessage.Visible = false;
ErrorMessagePanel.Visible = true;
ErrorMessage.Text = eyeTrackingStateChangedEventArgs.ErrorMessage;
Retry.Enabled = eyeTrackingStateChangedEventArgs.CanRetry;
return;
}
ErrorMessagePanel.Visible = false;
if (eyeTrackingStateChangedEventArgs.EyeTrackingState != EyeTrackingState.Tracking)
{
InfoMessage.Visible = true;
InfoMessage.Text = "Connecting to eye tracker, please wait...";
}
else
{
InfoMessage.Visible = false;
}
}
