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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the ActiveQt framework of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
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****************************************************************************/
#ifndef QAXAGGREGATED_H
#define QAXAGGREGATED_H
#include <QtCore/qobject.h>
struct IUnknown;
QT_BEGIN_NAMESPACE
class QWidget;
class QUuid;
class QAxAggregated
{
friend class QAxServerBase;
friend class QAxClientSite;
Q_DISABLE_COPY_MOVE(QAxAggregated)
public:
virtual long queryInterface(const QUuid &iid, void **iface) = 0;
protected:
QAxAggregated() = default;
virtual ~QAxAggregated() = default;
inline IUnknown *controllingUnknown() const
{ return controlling_unknown; }
QWidget *widget() const;
inline QObject *object() const { return the_object; }
private:
IUnknown *controlling_unknown = nullptr;
QObject *the_object = nullptr;
};
#define QAXAGG_IUNKNOWN \
HRESULT WINAPI QueryInterface(REFIID iid, LPVOID *iface) override \
{ return controllingUnknown()->QueryInterface(iid, iface); } \
ULONG WINAPI AddRef() override { return controllingUnknown()->AddRef(); } \
ULONG WINAPI Release() override { return controllingUnknown()->Release(); } \
QT_END_NAMESPACE
#endif // QAXAGGREGATED_H
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