qt-creator/share/qtcreator/templates/qmlapp/main.cpp

#include <QtGui/QApplication>
#include "qmlapplicationviewer.h"

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    QmlApplicationViewer viewer;
    viewer.addImportPath(QLatin1String("modules")); // ADDIMPORTPATH
    viewer.setOrientation(QmlApplicationViewer::ScreenOrientationAuto); // ORIENTATION
    viewer.setMainQmlFile(QLatin1String("qml/app/main.qml")); // MAINQML
    viewer.show();

    return app.exec();
}