119 lines
2.6 KiB
C++
119 lines
2.6 KiB
C++
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// GetNameValue.cpp
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//
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// Copyright (C) 2001 Hans Dietrich
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//
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// This software is released into the public domain.
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// You are free to use it in any way you like.
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//
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// This software is provided "as is" with no expressed
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// or implied warranty. I accept no liability for any
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// damage or loss of business that this software may cause.
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//
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///////////////////////////////////////////////////////////////////////////////
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#include "stdafx.h"
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#include "GetNameValue.h"
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///////////////////////////////////////////////////////////////////////////////
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// GetNameValue
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LONG GetNameValue(HKEY key, LPCTSTR subkey, LPCTSTR valuename, LPTSTR retdata)
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{
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ASSERT(subkey && subkey[0] != 0);
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ASSERT(valuename);
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ASSERT(retdata);
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HKEY hkey;
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LONG retval = RegOpenKeyEx(key, subkey, 0, KEY_QUERY_VALUE, &hkey);
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*retdata = 0;
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if (retval == ERROR_SUCCESS)
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{
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TRACE(_T("RegOpenKeyEx ok\n"));
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DWORD datasize = MAX_PATH;
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BYTE data[MAX_PATH];
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DWORD type = 0;
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retval = RegQueryValueEx(hkey, valuename, NULL, &type, data, &datasize);
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if (retval == ERROR_SUCCESS)
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{
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lstrcpy(retdata, (const char *)data);
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TRACE(_T("RegQueryValueEx ok\n"));
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}
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else
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{
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TRACE(_T("RegQueryValueEx failed\n"));
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}
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RegCloseKey(hkey);
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}
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else
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{
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TRACE(_T("RegOpenKeyEx failed\n"));
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}
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return retval;
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}
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///////////////////////////////////////////////////////////////////////////////
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// GetNextNameValue
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LONG GetNextNameValue(HKEY key, LPCTSTR subkey, LPTSTR szName, LPTSTR szData)
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{
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static HKEY hkey = NULL;
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static DWORD dwIndex = 0;
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LONG retval;
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if (subkey == NULL && szName == NULL && szData == NULL)
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{
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TRACE(_T("closing key\n"));
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if (hkey)
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RegCloseKey(hkey);
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hkey = NULL;
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return ERROR_SUCCESS;
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}
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if (subkey && subkey[0] != 0)
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{
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retval = RegOpenKeyEx(key, subkey, 0, KEY_ALL_ACCESS, &hkey);
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if (retval != ERROR_SUCCESS)
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{
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TRACE(_T("RegOpenKeyEx failed\n"));
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return retval;
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}
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else
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{
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TRACE(_T("RegOpenKeyEx ok\n"));
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}
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dwIndex = 0;
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}
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else
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{
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dwIndex++;
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}
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ASSERT(szName != NULL && szData != NULL);
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*szName = 0;
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*szData = 0;
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char szValueName[MAX_PATH];
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DWORD dwValueNameSize = sizeof(szValueName)-1;
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BYTE szValueData[MAX_PATH];
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DWORD dwValueDataSize = sizeof(szValueData)-1;
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DWORD dwType = 0;
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retval = RegEnumValue(hkey, dwIndex, szValueName, &dwValueNameSize, NULL,
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&dwType, szValueData, &dwValueDataSize);
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if (retval == ERROR_SUCCESS)
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{
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TRACE(_T("szValueName=<%s> szValueData=<%s>\n"), szValueName, szValueData);
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lstrcpy(szName, (char *)szValueName);
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lstrcpy(szData, (char *)szValueData);
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}
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else
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{
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TRACE(_T("RegEnumKey failed\n"));
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}
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return retval;
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}
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