/* ***** 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.
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 * the file under the current version of the RealNetworks Community
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 * will apply. You may also obtain the license terms directly from
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 * This file is part of the Helix DNA Technology. RealNetworks is the
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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