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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef DIRECTSHOWPINENUM_H
#define DIRECTSHOWPINENUM_H

#include <QtCore/qlist.h>

#include <dshow.h>


QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

class DirectShowPinEnum : public IEnumPins
{
public:
    DirectShowPinEnum(const QList<IPin *> &pins);
    ~DirectShowPinEnum();

    // IUnknown
    HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObject);
    ULONG STDMETHODCALLTYPE AddRef();
    ULONG STDMETHODCALLTYPE Release();

    // IEnumPins
    HRESULT STDMETHODCALLTYPE Next(ULONG cPins, IPin **ppPins, ULONG *pcFetched);
    HRESULT STDMETHODCALLTYPE Skip(ULONG cPins);
    HRESULT STDMETHODCALLTYPE Reset();
    HRESULT STDMETHODCALLTYPE Clone(IEnumPins **ppEnum);

private:
    LONG m_ref;
    QList<IPin *> m_pins;
    int m_index;
};

QT_END_NAMESPACE

QT_END_HEADER

#endif