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71 lines
1.7 KiB
C++
71 lines
1.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#include "nsOERegUtil.h"
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#include "OEDebugLog.h"
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BYTE * nsOERegUtil::GetValueBytes( HKEY hKey, const char *pValueName)
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{
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LONG err;
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DWORD bufSz;
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LPBYTE pBytes = NULL;
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DWORD type = 0;
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err = ::RegQueryValueEx( hKey, pValueName, NULL, &type, NULL, &bufSz);
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if (err == ERROR_SUCCESS) {
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pBytes = new BYTE[bufSz];
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err = ::RegQueryValueEx( hKey, pValueName, NULL, NULL, pBytes, &bufSz);
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if (err != ERROR_SUCCESS) {
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delete [] pBytes;
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pBytes = NULL;
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}
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else {
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if (type == REG_EXPAND_SZ) {
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DWORD sz = bufSz;
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LPBYTE pExpand = NULL;
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DWORD rSz;
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do {
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if (pExpand)
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delete [] pExpand;
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sz += 1024;
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pExpand = new BYTE[sz];
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rSz = ::ExpandEnvironmentStrings( (LPCSTR) pBytes, (LPSTR) pExpand, sz);
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} while (rSz > sz);
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delete [] pBytes;
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return( pExpand);
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}
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}
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}
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return( pBytes);
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}
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void nsOERegUtil::FreeValueBytes( BYTE *pBytes)
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{
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if (pBytes)
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delete [] pBytes;
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}
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