#include <QGuiApplication>

 #include <QQmlApplicationEngine>

 int main(int argc, char *argv[])

 {

 #if defined(Q_OS_WIN)

     QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);

 #endif

     QGuiApplication app(argc, argv);

     QQmlApplicationEngine engine;

     engine.load(QUrl(QStringLiteral("qrc:/main.qml")));

     if (engine.rootObjects().isEmpty())

         return -1;

     return app.exec();

 }

#include <QGuiApplication>

#include <QQuickView>

int main(int argc, char *argv[])

{

#if defined(Q_OS_WIN)

    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);

#endif

    QGuiApplication app(argc, argv);

    QQuickView viewer;

    viewer.setResizeMode(QQuickView::SizeRootObjectToView);

    viewer.setSource(QUrl("qrc:///main.qml"));

    viewer.show();

    return app.exec();

}