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++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ //! [104]
++ // Add C includes here
++
++ #if defined __cplusplus
++ // Add C++ includes here
++ #include <stdlib>
++ #include <iostream>
++ #include <vector>
++ #include <QApplication> // Qt includes
++ #include <QPushButton>
++ #include <QLabel>
++ #include "thirdparty/include/libmain.h"
++ #include "my_stable_class.h"
++ ...
++ #endif
++ //! [104]
++
++