Qt Quick Demo - Calqlatr

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 #include <QGuiApplication>
 #include <QQmlEngine>
 #include <QQmlFileSelector>
 #include <QQuickView>

 int main(int argc, char *argv[])
 {
     QCoreApplication::setOrganizationName("QtExamples");

     QGuiApplication app(argc, argv);

     QQuickView view;
     view.connect(view.engine(), &QQmlEngine::quit, &app, &QCoreApplication::quit);
     view.setSource(QUrl("qrc:/demos/calqlatr/calqlatr.qml"));
     if (view.status() == QQuickView::Error)
         return -1;
     view.setResizeMode(QQuickView::SizeRootObjectToView);
     view.show();
     return app.exec();
 }