tutorial02.cs

       private void OnCoronaRuntimeLoaded(
            object sender, CoronaLabs.Corona.WinRT.CoronaRuntimeEventArgs e)
        {
            // Keep a reference to the Corona runtime environment.
            // It's needed so that your login window's results can be dispatched to Corona.
            fCoronaRuntimeEnvironment = e.CoronaRuntimeEnvironment;
            fCoronaRuntimeEnvironment.AddEventListener("requestingLogin", OnRequestingLogin);
        }