hxminivolume.h

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: hxminivolume.h,v 1.1.8.1 2004/07/09 02:08:04 hubbe Exp $
 * 
 * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
 * 
 * The contents of this file, and the files included with this file,
 * are subject to the current version of the RealNetworks Public
 * Source License (the "RPSL") available at
 * http://www.helixcommunity.org/content/rpsl unless you have licensed
 * the file under the current version of the RealNetworks Community
 * Source License (the "RCSL") available at
 * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
 * will apply. You may also obtain the license terms directly from
 * RealNetworks.  You may not use this file except in compliance with
 * the RPSL or, if you have a valid RCSL with RealNetworks applicable
 * to this file, the RCSL.  Please see the applicable RPSL or RCSL for
 * the rights, obligations and limitations governing use of the
 * contents of the file.
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL") in which case the provisions of the GPL are applicable
 * instead of those above. If you wish to allow use of your version of
 * this file only under the terms of the GPL, and not to allow others
 * to use your version of this file under the terms of either the RPSL
 * or RCSL, indicate your decision by deleting the provisions above
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 * the GPL. If you do not delete the provisions above, a recipient may
 * use your version of this file under the terms of any one of the
 * RPSL, the RCSL or the GPL.
 * 
 * This file is part of the Helix DNA Technology. RealNetworks is the
 * developer of the Original Code and owns the copyrights in the
 * portions it created.
 * 
 * This file, and the files included with this file, is distributed
 * and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
 * KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
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 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
 * ENJOYMENT OR NON-INFRINGEMENT.
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 * Technology Compatibility Kit Test Suite(s) Location:
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 * Contributor(s):
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 * ***** END LICENSE BLOCK ***** */

#ifndef _HXAUDVOL_H
#define _HXAUDVOL_H


class CHXVolume: public IHXVolume
{
  public:

    CHXVolume(void);

    /* IUnknown methods */
    STDMETHOD(QueryInterface)( THIS_ REFIID riid, void** ppvObj);
    STDMETHOD_(ULONG32,AddRef)( THIS );
    STDMETHOD_(ULONG32,Release)( THIS );

    /* IHXVolume methods */
    STDMETHOD(SetVolume) (THIS_ const UINT16  uVolume );
    STDMETHOD(SetMute)   (THIS_ const  BOOL bMute );
    STDMETHOD(AddAdviseSink)    (THIS_ IHXVolumeAdviseSink* pSink );
    STDMETHOD(RemoveAdviseSink) (THIS_ IHXVolumeAdviseSink* pSink );
    
    STDMETHOD_(BOOL,GetMute) (THIS)
    {
        return m_bMute;
    }
    STDMETHOD_(UINT16,GetVolume) (THIS)
    {
        return m_uVolume;
    }

  private:

    ~CHXVolume(void);

    PRIVATE_DESTRUCTORS_ARE_NOT_A_CRIME

    LONG32                m_lRefCount;
    BOOL                  m_bMute;
    UINT16                m_uVolume;
    IHXVolumeAdviseSink*  m_pAdviseSink;

  protected:
};

#endif  // _HXAUDVOL_H