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// Copyright (C) 2015 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#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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