hxminivolume.h

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
 *  
 * Portions Copyright (c) 1995-2002 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 
 * Version 1.0 (the "RPSL") available at 
 * http://www.helixcommunity.org/content/rpsl unless you have licensed 
 * the file under the RealNetworks Community Source License Version 1.0 
 * (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.  
 *  
 * 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 ALL SUCH WARRANTIES, 
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS 
 * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
 * 
 * Technology Compatibility Kit Test Suite(s) Location: 
 *    http://www.helixcommunity.org/content/tck 
 * 
 * Contributor(s): 
 *  
 * ***** 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