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//####COPYRIGHTBEGIN####

//                                                                          

// ----------------------------------------------------------------------------

// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.

//

// This program is part of the eCos host tools.

//

// This program is free software; you can redistribute it and/or modify it 

// under the terms of the GNU General Public License as published by the Free 

// Software Foundation; either version 2 of the License, or (at your option) 

// any later version.

// 

// This program is distributed in the hope that it will be useful, but WITHOUT 

// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 

// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for 

// more details.

// 

// You should have received a copy of the GNU General Public License along with

// this program; if not, write to the Free Software Foundation, Inc., 

// 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

//

// ----------------------------------------------------------------------------

//                                                                          

//####COPYRIGHTEND####

// RegKeyEx.cpp : implementation file

//

#include "stdafx.h"

#include "RegKeyEx.h"

#ifdef _DEBUG

#define new DEBUG_NEW

#undef THIS_FILE

static char THIS_FILE[] = __FILE__;

#endif

CRegKeyEx::Value::Value () :

  m_dwType(REG_NONE)

{

}

CRegKeyEx::Value::Value (DWORD dw) :

  m_dwType(REG_NONE),

  m_dw(dw)

{

}

CRegKeyEx::Value::Value (LPCTSTR psz) :

  m_dwType(REG_SZ)

{

  m_psz=new TCHAR[1+_tcslen(psz)];

  _tcscpy(m_psz,psz);

}

CRegKeyEx::Value::~Value ()

{

  switch(Type()) {

    case REG_SZ:

    case REG_EXPAND_SZ:

      delete m_psz;

      break;

    default:

      break;

  }

}

/////////////////////////////////////////////////////////////////////////////

// CRegKeyEx

CRegKeyEx::~CRegKeyEx()

{

  if(m_hKey){

    Close();

  }

}

CRegKeyEx::CRegKeyEx(HKEY hKeyParent, LPCTSTR lpszKeyName, REGSAM samDesired)

{

  Create(hKeyParent,lpszKeyName,REG_NONE,REG_OPTION_NON_VOLATILE,samDesired);

}

bool CRegKeyEx::QueryValue(LPCTSTR pszValueName,CString &str)

{

  DWORD dwLen,dwType;

  bool rc=(ERROR_SUCCESS==::RegQueryValueEx(m_hKey,pszValueName,NULL,&dwType,NULL,&dwLen)) && (REG_SZ==dwType||REG_EXPAND_SZ==dwType);

  if(rc){

    rc&=(ERROR_SUCCESS==CRegKey::QueryValue(str.GetBuffer(1+dwLen),pszValueName,&dwLen));

    str.ReleaseBuffer();

  }

  return rc;

}

bool CRegKeyEx::QueryValue(int nIndex,CString &strName,CString &strValue)

{

  DWORD dwType,dwMaxValueNameLen,dwMaxValueLen;

  bool rc=(ERROR_SUCCESS==::RegQueryInfoKey(m_hKey,NULL,NULL,NULL,NULL,NULL,NULL,NULL,&dwMaxValueNameLen,&dwMaxValueLen,NULL,NULL));

  if(rc){

    dwMaxValueNameLen++;

    dwMaxValueLen++;

    rc&=(ERROR_SUCCESS==::RegEnumValue(m_hKey,nIndex,strName.GetBuffer(dwMaxValueNameLen),&dwMaxValueNameLen,NULL,&dwType,(LPBYTE)strValue.GetBuffer(dwMaxValueLen),&dwMaxValueLen)) && (REG_SZ==dwType||REG_EXPAND_SZ==dwType);

    strName.ReleaseBuffer();

    strValue.ReleaseBuffer();

  }

  return rc;

}

bool CRegKeyEx::QueryValue(LPCTSTR pszValueName,DWORD &dwValue)

{

  DWORD dwType;

  DWORD dwLen=sizeof DWORD;

  return (ERROR_SUCCESS==::RegQueryValueEx(m_hKey,pszValueName,NULL,&dwType,(LPBYTE)&dwValue,&dwLen) && REG_DWORD==dwType);

}

bool CRegKeyEx::QueryValue(int nIndex,CString &strName,DWORD &dwValue)

{

  DWORD dwType,dwMaxValueNameLen;

  DWORD dwValueLen=sizeof(DWORD);

  bool rc=(ERROR_SUCCESS==::RegQueryInfoKey(m_hKey,NULL,NULL,NULL,NULL,NULL,NULL,NULL,&dwMaxValueNameLen,NULL,NULL,NULL));

  if(rc){

    rc&=(ERROR_SUCCESS==::RegEnumValue(m_hKey,nIndex,strName.GetBuffer(1+dwMaxValueNameLen),&dwMaxValueNameLen,NULL,&dwType,(LPBYTE)&dwValue,&dwValueLen)) && (REG_DWORD==dwType);

    strName.ReleaseBuffer();

  }

  return rc;

}

CRegKeyEx::Value CRegKeyEx::QueryValue(LPCTSTR pszValueName)

{

  DWORD dwType;

  if(ERROR_SUCCESS!=::RegQueryValueEx(m_hKey,pszValueName,NULL,&dwType,NULL,NULL)){

    dwType=REG_NONE;

  }

  switch(dwType){

    case REG_SZ:

      {

        CString strValue;

        return QueryValue(pszValueName,strValue)?Value(strValue):Value();

      }

      break;

    case REG_DWORD:

      {

        DWORD dw;

        return QueryValue(pszValueName,dw)?Value(dw):Value();

      }

      break;

    default:

      return Value();

      break;

  }

}

CRegKeyEx::Value CRegKeyEx::QueryValue(int nIndex,CString &strName)

{

  DWORD dwType;

  if(ERROR_SUCCESS!=::RegEnumValue(m_hKey,nIndex,NULL,NULL,NULL,&dwType,NULL,NULL)){

    dwType=REG_NONE;

  }

  switch(dwType){

    case REG_SZ:

      {

        CString strValue;

        return QueryValue(nIndex,strName,strValue)?Value(strValue):Value();

      }

      break;

    case REG_DWORD:

      {

        DWORD dw;

        return QueryValue(nIndex,strName,dw)?Value(dw):Value();

      }

      break;

    default:

      return Value();

      break;

  }

}

bool CRegKeyEx::QueryKey(int nIndex,CString &strName)

{

  DWORD dwNameLen;

  bool rc=(ERROR_SUCCESS==::RegQueryInfoKey(m_hKey,NULL,NULL,NULL,NULL,&dwNameLen,NULL,NULL,NULL,NULL,NULL,NULL));

  if(rc){

    dwNameLen++;

    rc&=(ERROR_SUCCESS==::RegEnumKey(m_hKey,nIndex,strName.GetBuffer(dwNameLen),dwNameLen));

    strName.ReleaseBuffer();

  }

  return rc;

}