qt vs. windows

qt.cpp

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

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

    QmlApplicationViewer viewer;
    viewer.setOrientation(QmlApplicationViewer::ScreenOrientationLockLandscape);
    viewer.setMainQmlFile(QLatin1String("qml/qml/clocks.qml"));
    viewer.showExpanded();

    return app.exec();
}

windows.cpp

#include "stdafx.h"
#include "AnnotatorApplication.h"

// The window application
INT APIENTRY _tWinMain(
    HINSTANCE /*hInstance*/,
    HINSTANCE /*hPrevInstance*/,
    LPTSTR    /*lpCmdLine*/,
    INT       /*nCmdShow*/)
{
    ComPtr<IWindowApplication> mainApp;

    // Create and initialize the main application object
    HRESULT hr = SharedObject<AnnotatorApplication>::Create(&mainApp);

    if (SUCCEEDED(hr))
    {
        // Start the message loop for the application
        hr = mainApp->RunMessageLoop();
    }

    return 0;
}