#include <QGuiApplication>
#include <QQmlApplicationEngine>

#define TRY_Q_NAMESPACE

#ifdef TRY_Q_NAMESPACE
namespace MyNamespace {
Q_NAMESPACE

enum class SomeEnum {
    Foo,
    Bar
};
Q_ENUM_NS(SomeEnum)
}
#endif

int main(int argc, char *argv[])
{
    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);

    QGuiApplication app(argc, argv);

    QQmlApplicationEngine engine;

#ifdef TRY_Q_NAMESPACE
    qmlRegisterUncreatableMetaObject(MyNamespace::staticMetaObject,
                             "com.kdab.namespace",
                             3, 14,
                             "MyNamespace",
                             "Error: only enums");
#endif
    engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
    if (engine.rootObjects().isEmpty())
        return -1;

    return app.exec();
}