symbian_pref.h

来自「symbian 下的helix player源代码」· C头文件 代码 · 共 115 行

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: symbian_pref.h,v 1.1.50.3 2004/07/09 01:47:51 hubbe Exp $
 * 
 * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
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 * The contents of this file, and the files included with this file,
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 * 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
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 * This file is part of the Helix DNA Technology. RealNetworks is the
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 * ***** END LICENSE BLOCK ***** */

#ifndef _SYMBIAN_PREF
#define _SYMBIAN_PREF

#include "pref.h"
#include <stdio.h>

struct IHXBuffer;
class CHXSimpleList;
class CHXMapStringToOb;

class CSymbianPref : public CPref 
{
  public:
    /* call open_pref() to automatically create the correct 
       specific preference object. */

    /* automatically reads all prefs into memory. */
    static  CSymbianPref* open_pref (const char* pCompanyName,
                                     const char* pProductName,
                                     int nProdMajorVer,
                                     int nProdMinorVer
                                     );
        
    /* class destructor - writes prefs to disk. */  
    virtual ~CSymbianPref(void);

    /* read_pref reads the preference specified by Key to the Buffer. */   
    virtual HX_RESULT read_pref(const char* pPrefKey, IHXBuffer*& pBuffer);

    /*  write_pref writes (to memory) the preference specified by Key from the 
        Buffer. */ 
    virtual HX_RESULT write_pref(const char* pPrefKey, IHXBuffer* pBuffer);

    /*  delete_pref deletes the preference specified by Key from the Buffer. */
    virtual HX_RESULT delete_pref(const char* pPrefKey); 

    /* commit_prefs saves all changes to the prefs to disk (e.g. on Symbian) */ 
    virtual HX_RESULT commit_prefs();

    virtual HX_RESULT init_pref(const char* pCompanyName,
                                const char* pProductName,
                                int nProdMajorVer,
                                int nProdMinorVer);

    /*  remove_indexed_pref removes indexed preference specified by Key */       
    HX_RESULT remove_indexed_pref(const char* pPrefKey); 
    virtual HX_RESULT remove_pref(const char* pPrefKey);

    HX_RESULT BeginSubPref(const char* szSubPref);
    HX_RESULT EndSubPref();

    HX_RESULT GetPrefKey(UINT32 nIndex,IHXBuffer*& pBuffer);

  protected:
        
    // Constructor NOTE: use open_pref() to create an instance of this class
    CSymbianPref( const char* pCompanyName,
                  const char* pProductName,
                  int nProdMajorVer,
                  int nProdMinorVer);

};

#endif // _SYMBIAN_PREF