#include <QGuiApplication>
#include <QQmlApplicationEngine>

int main(int argc, char *argv[])
{
 QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);

 QGuiApplication app(argc, argv);

 QQmlApplicationEngine engine;
 const QUrl url(QStringLiteral("qrc:/main.qml"));
 QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,
 &app, [url](QObject *obj, const QUrl &objUrl) {
 if (!obj && url == objUrl)
 QCoreApplication::exit(-1);
 }, Qt::QueuedConnection);
 engine.load(url);

 return app.exec();
}