Revision control
++ // Copyright (C) 2023 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #include <QtGui/qguiapplication.h>
++ #include <QtQml/qqmlapplicationengine.h>
++
++ int main(int argc, char *argv[])
++ {
++ QGuiApplication app(argc, argv);
++
++ QQmlApplicationEngine engine;
++ QObject::connect(&engine, &QQmlApplicationEngine::objectCreationFailed, &app,
++ [](){ QCoreApplication::exit(EXIT_FAILURE); }, Qt::QueuedConnection);
++ engine.loadFromModule("TrafficLightApplication", "MainView");
++
++ return app.exec();
++ }