qtbase/examples/widgets/graphicsview/basicgraphicslayouts/main.cpp

// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause

#include "window.h"

#include <QApplication>
#include <QGraphicsView>

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

    QGraphicsScene scene;

    Window *window = new Window;
    scene.addItem(window);
    QGraphicsView view(&scene);
    view.resize(600, 600);
    view.show();

    return app.exec();
}