/*// --- FILE INFORMATION -----------------------------
CRegistry.cpp
Classes: CRegEntry and CRegistry
Author: Stuart Konen
Email: skonen@gmail.com
Date: 12/1/2004 (MM/DD/YYYY)
Version: 1.00
(-!-) If you're going to use these classes please do not
remove these comments... To use these classes, simply #include
Registry.h . In MFC you should also turn off precompiled headers
for this file, in VC++ this can be done by navigating to:
Project->Settings->Project Name->CRegistry.cpp->C/C++->Precompiled Headers
*///----------------------------------------------------
#include "Registry.h"
#pragma warning (disable : 4706)
/* ===================================================
* CONSTRUCTOR
* =================================================*/
CRegEntry::CRegEntry(CRegistry *Owner) {
assert(Owner);
InitData(Owner);
}
/* ===================================================
* CRegEntry::InitData(CRegistry *Owner)
*
* Initializes the entries default values and sets the entries
* owner (CRegistry). This is only called during construction.
*/
void CRegEntry::InitData(CRegistry *Owner) {
dwDWORD = iType = 0;
lpszName = lpszStr = NULL;
__bStored = false;
__bConvertable = true;
__cregOwner = Owner;
}
/* ===================================================
* CRegEntry::ForceStr()
*
* Forces the memory allocation for the entry's string value, if it
* has not already been allocated.
*/
void CRegEntry::ForceStr() {
if (lpszStr == NULL) { lpszStr = new _TCHAR[_MAX_REG_VALUE]; lpszStr[0] = 0; }
}
/* ===================================================
* CRegEntry::operator=(LPCTSTR lpszValue)
*
* OPERATOR: Assigns a const character array to the open
* registry value. The registry value type will be REG_SZ.
*/
CRegEntry& CRegEntry::operator=(LPCTSTR lpszValue) {
size_t nValueLen = (_tcslen(lpszValue) + 1)*sizeof(TCHAR);
assert(nValueLen <= _MAX_REG_VALUE);
ForceStr(); iType = REG_SZ;
_tcsncpy(lpszStr, lpszValue, nValueLen > _MAX_REG_VALUE ? _MAX_REG_VALUE : nValueLen);
REGENTRY_ALLOWCONV(true)
if (REGENTRY_NOTLOADING && REGENTRY_KEYVALID( KEY_SET_VALUE ))
RegSetValueEx(__cregOwner->hKey, lpszName, NULL, REG_SZ, (LPBYTE)lpszValue, nValueLen);
REGENTRY_TRYCLOSE;
__bStored = true;
return *this;
}
/* ===================================================
* CRegEntry::operator=(LPDWORD lpdwValue)
*
* OPERATOR: Assigns a DWORD to the open registry value.
* The registry value type will be REG_DWORD.
*/
CRegEntry& CRegEntry::operator=(LPDWORD lpdwValue) {
iType = REG_DWORD;
memcpy(&dwDWORD, lpdwValue, sizeof( DWORD ));
REGENTRY_ALLOWCONV(true)
if (REGENTRY_NOTLOADING && REGENTRY_KEYVALID( KEY_SET_VALUE ))
RegSetValueEx(__cregOwner->hKey, lpszName, NULL, REG_DWORD, (LPBYTE)&dwDWORD, sizeof( DWORD ));
REGENTRY_TRYCLOSE;
__bStored = true;
return *this;
}
/* ===================================================
* CRegEntry::operator=(CRegEntry& cregValue)
*
* OPERATOR: Copys value information from the specified
* registry entry (CRegEntry) into this entry.
*/
CRegEntry& CRegEntry::operator=(CRegEntry& cregValue) {
if (this == &cregValue)
return *this;
if (lpszName == NULL) {
size_t nNameLen = _tcslen(cregValue.lpszName) + 1;
lpszName = new _TCHAR[nNameLen]; _tcsncpy(lpszName, cregValue.lpszName, nNameLen);
}
switch ((iType = cregValue.iType)) {
case REG_SZ:
return (*this = (ForceStr(), cregValue.lpszStr));
break;
case REG_MULTI_SZ: {
LPTSTR lpszBuf = new _TCHAR[_MAX_REG_VALUE];
SetMulti(cregValue.GetMulti(lpszBuf), cregValue.MultiLength());
delete [] lpszBuf; return *this;
}
break;
case REG_BINARY: {
size_t n = cregValue.vBytes.size(); LPBYTE buf = new BYTE[n];
cregValue.GetBinary(buf, n); SetBinary(buf, n);
delete [] buf; return *this;
}
break;
default:
return (*this = cregValue.dwDWORD);
}
}
/* ===================================================
* CRegEntry::operator LPTSTR()
*
* OPERATOR: Converts (if required) and returns the open registry
* value as a null terminated string.
*/
CRegEntry::operator LPTSTR() {
/* If caching is disabled, refresh the entries */
REGENTRY_REFRESH_IF_NOCACHE
assert(__bConvertable); // Check for conversion implementation
ForceStr();
switch (iType) {
case REG_DWORD:
_stprintf(lpszStr, _T("%lu"), dwDWORD);
break;
case REG_MULTI_SZ:
GetMulti(lpszStr);
break;
case REG_BINARY: {
_tcsncpy(lpszStr, (const _TCHAR*)&vBytes[0], vBytes.size());
lpszStr[vBytes.size()] = 0;
}
break;
}
return lpszStr;
}
/* ===================================================
* CRegEntry::operator DWORD()
*
* OPERATOR: Converts (if required) and returns the open registry
* value as an unsigned 32-bit integer (unsigned long).
*/
CRegEntry::operator DWORD() {
/* If caching is disabled, refresh the entries */
REGENTRY_REFRESH_IF_NOCACHE
assert(__bConvertable); // Check for conversion implementation
REGENTRY_BINARYTOSTRING
return (REGENTRY_SZ_SAFE ? _tcstoul(lpszStr, NULL, NULL) : dwDWORD);
}
/* ===================================================
* CRegEntry::GetBinary(LPBYTE lpbValue, size_t nLen)
*
* Sets the registry value to a binary value (REG_BINARY)
*
* Important Params:
*
* LPBYTE lpbDest: Pointer to the byte array to store *
* size_t nLen: Elements contained within the byte array.
*/
void CRegEntry::SetBinary(LPBYTE lpbValue, size_t nLen) {
if (!nLen) { assert(nLen); return; }
iType = REG_BINARY;
if (REGENTRY_NOTLOADING && REGENTRY_KEYVALID ( KEY_SET_VALUE ) )
RegSetValueEx(__cregOwner->hKey, lpszName, NULL, REG_BINARY, lpbValue, nLen);
REGENTRY_TRYCLOSE;
__bStored = true;
if (vBytes.size() < nLen) vBytes.reserve(nLen);
vBytes.clear();
do { vBytes.push_back(lpbValue[vBytes.size()]); }
while (vBytes.size() < nLen);
}
/* ===================================================
* CRegEntry::GetBinary(LPBYTE lpbDest, size_t nMaxLen)
*
* Gets the binary value of a value stored as REG_BINARY
*
* Important Params:
*
* LPBYTE lpbDest: Pointer to the byte array to fill
* size_t nMaxLen: The maximum bytes to copy to lpbDest
*
* Notes: This will only work for values that were saved
* using the binary registry type specification (REG_BINARY)
*/
void CRegEntry::GetBinary(LPBYTE lpbDest, size_t nMaxLen) {
assert(IsBinary()); // Must be stored as Binary
REGENTRY_REFRESH_IF_NOCACHE
if ((size_t)(&vBytes.back() - &vBytes.at(0)+1) == vBytes.size()*sizeof(BYTE))
memcpy(lpbDest, (LPBYTE)&vBytes.at(0), vBytes.size() > nMaxLen ? nMaxLen : vBytes.size());
else
for (size_t n=0; n < vBytes.size() && n < nMaxLen; n++)
lpbDest[n] = vBytes[n];
}
/* ===================================================
* CRegEntry::GetBinaryLength()
*
* Returns the size of the binary value in bytes.
*/
size_t CRegEntry::GetBinaryLength() {
assert(IsBinary());
REGENTRY_REFRESH_IF_NOCACHE
return vBytes.size();
}
/* ===================================================
* CRegEntry::SetMulti(LPCTSTR lpszValue, size_t nLen, bool bInternal)
*
* Stores an array of null-terminated string, terminated by two null characters.
* For Example: First String\0Second\Third\0\0
*
* Important Params:
*
* LPCTSTR lpszValue: The string consisting of the null-terminated string array
* size_t nLen: The number of characters in the string, including null characters
*
* Note: For inserting individual null-terminated strings into the array,
* use MultiAdd or MultiSetAt.
*/
void CRegEntry::SetMulti(LPCTSTR lpszValue, size_t nLen, bool bInternal) {
size_t nCur = 0, nPrev = 0, nShortLen = nLen;
/* When this is internal, there is no need to repopulate the vector. */
if (bInternal) goto SkipNoInternal;
iType = REG_MULTI_SZ; vMultiString.clear();
if (nLen <= 2) goto SkipNoInternal; // The string is empty : \0\0
if (*(lpszValue + nShortLen-1) == '\0')
nShortLen--;
/* Populate a vector with each string part for easy and quick access */
while ((nCur = (int)(_tcschr(lpszValue+nPrev, '\0')-lpszValue)) < nShortLen) {
vMultiString.push_back(lpszValue+nPrev);
nPrev = nCur+1;
}
SkipNoInternal:
if (REGENTRY_NOTLOADING && REGENTRY_KEYVALID ( KEY_SET_VALUE ) )
RegSetValueEx(__cregOwner->hKey, lpszName, NULL, REG_MULTI_SZ, (LPBYTE)lpszValue, nLen*sizeof(TCHAR));
REGENTRY_TRYCLOSE;
__bStored = true;
}
/* ===================================================
* CRegEntry::MultiLength(bool bInternal = false)
*
* Returns the number of characters (including null) stored
* in the full string. Don't confuse this with MultiCount()
* which returns the number of strings stored in the array.
*/
size_t CRegEntry::MultiLength(bool bInternal /*false*/) {
//Ensure correct values with no cache
if (!bInternal) REGENTRY_REFRESH_IF_NOCACHE
for (size_t nLen = 0, nIndex = 0; nIndex < vMultiString.size(); nIndex++)
nLen += vMultiString[nIndex].length() + 1;
return nLen ? nLen+1 : 0;
}
/* ===================================================
* CRegEntry::MultiCount()
*
* Returns the number of strings located within the array.
*/
size_t CRegEntry::MultiCount() {
// Ensure correct values with no cache
REGENTRY_REFRESH_IF_NOCACHE
return vMultiString.size();
}
/* ===================================================
* CRegEntry::MultiRemoveAt(size_t nIndex)
*
* Simply removes the string stored at the zero-based index of nIndex
*/
void CRegEntry::MultiRemoveAt(size_t nIndex) {
// Ensure correct values with no cache
REGENTRY_REFRESH_IF_NOCACHE
assert(nIndex < vMultiString.size());
vMultiString.erase(vMultiString.begin()+nIndex);
// Update the registry
REGENTRY_UPDATE_MULTISTRING
}
/* ===================================================
* CRegEntry::MultiSetAt(size_t nIndex, LPCTSTR lpszVal)
*
* Alters the value of a string in the array located at
* the 0 based index of nIndex. The new value is lpszVal.
* The index must be within the bounds of the array, with
* the exception of being == the number of elements in
* which case calling this function is equal to calling
* MultiAdd.
*/
void CRegEntry::MultiSetAt(size_t nIndex, LPCTSTR lpszVal) {
// Ensure correct values with no cache
REGENTRY_REFRESH_IF_NOCACHE
assert(nIndex <= vMultiString.size());
iType = REG_MULTI_SZ;
// Add a new string element if == elements+1
if (nIndex == vMultiString.size())
vMultiString.push_back(lpszVal);
else
vMultiString[nIndex] = lpszVal;
// Update the registry
REGENTRY_UPDATE_MULTISTRING
}
/* ===================================================
* CRegEntry::MultiGetAt(size_t nIndex)
*
* Returns a constant pointer to the string located in
* the array at the zero-based index of nIndex. Note that
* the return value is not an STL string.
*/
LPCTSTR CRegEntry::MultiGetAt(size_t nIndex) {
// Ensure correct values with no cache
REGENTRY_REFRESH_IF_NOCACHE
assert(nIndex < vMultiString.size() && IsMultiString());
return vMultiString[nIndex].c_str();
}
/* ===================================================
* CRegEntry::GetMulti(LPCTSTR lpszDest, size_t nMax)
*
* Copys the entire null-terminated array string to lpszDest.
* For Example: First String\0Second\Third\0\0
*
* Important Params:
*
* LPCTSTR lpszDest: Pointer to the character array to fill.
* size_t nMax: The maximum characters to read, including null-characters
*
* Note: By default nMax is set to _MAX_REG_VALUE, you can retrieve
* the length of the entire string by calling MultiLength().
*/
LPTSTR CRegEntry::GetMulti(LPTSTR lpszDest, size_t nMax) {
LPCTSTR strBuf;
size_t nCur = 0, nLen = 0;
assert(IsMultiString());
if (!IsMultiString()) return &(lpszDest[0] = 0);
/* If caching is disabled, refresh the entries */
REGENTRY_REFRESH_IF_NOCACHE
for (size_t n=0; n < vMultiString.size() && nCur < nMax; n++) {
strBuf = vMultiString[n].c_str();
nLen = vMultiString[n].length()+1;
_tcsncpy(lpszDest + nCur, strBuf, (nLen >= nMax ? (nMax-nCur) : nLen) * sizeof(_TCHAR));
nCur += nLen;
}
/* Add the final null termination */
*(lpszDest + nCur) = 0;
return lpszDest;
}
/* ===================================================
* CRegEntry::Delete()
*
* Removes the value from the open registry key, returns
* true on success and false on failure.
*/
bool CRegEntry::Delete() {
__bStored = false;
if (REGENTRY_KEYVALID (KEY_SET_VALUE) )
return (__cregOwner->AutoClose(), IS_ES(RegDeleteValue(__cregOwner->hKey, lpszName)));
return false;
}
// BEGIN CREGISTRY FUNCTIONS
/* ===================================================
* CRegistry CONSTRUCTOR
*
* Flags:
*
* CREG_CREATE (default) - When attempting to open a key that
* does not exist, create it.
*
* CREG_AUTOOPEN - Close the open registry key handle
* after an action has been performed with it. Opens the
* key whenever another action needs to be performed.
*
* ===================================================*/
CRegistry::CRegistry(DWORD flags) {
InitData(); __dwFlags = flags;
}
/* ===================================================
* CRegistry::InitData()
* Initializes the variables related to key locations to NULL.
*/
void CRegistry::InitData() {
_lpszSubKey = NULL;
_hRootKey = hKey = NULL;
}
/* ===================================================
* CRegistry::operator []( LPCTSTR lpszVName)
*
* OPERATOR: This will return the Registry Entry (CRegEntry) associated
* with the given value name. If the value name does not exist in
* the open key, it will be created.
*
* Note: If the value name is created, it is only stored in the actual
* registry when the entry's value has been set.
*/
CRegEntry& CRegistry::operator []( LPCTSTR lpszVName) {
size_t nValueNameLen = _tcslen(lpszVName) + 1;
assert(nValueNameLen <= _MAX_REG_VALUE);
for (int i = _reEntries.size()-1; i >=0; i--) {
if (!_tcsicmp(lpszVName, _reEntries[i]->lpszName))
return *_reEntries[i];
}
/* Entry not found */
_reEntries.push_back(new CRegEntry(this));
_reEntries.back()->lpszName = new _TCHAR[nValueNameLen];
_tcsncpy(_reEntries.back()->lpszName, lpszVName, (nValueNameLen > _MAX_REG_VALUE ? _MAX_REG_VALUE : nValueNameLen));
return *_reEntries.back();
}
/* ===================================================
* CRegistry::KeyExists()
*
* Returns true if the key exists and returns false if the key
* does not exist or could not be opened. This may be called
* as a static function.
*
* Example:
* CRegistry::KeyExists("Software\\Something", HKEY_LOCAL_MACHINE);
*/
bool CRegistry::KeyExists(LPCTSTR lpszRegPath, HKEY hRootKey) {
CRegistry cregTemp( NULL );
return cregTemp.Open(lpszRegPath, hRootKey, KEY_QUERY_VALUE, true);
}
/* ===================================================
* CRegistry::SubKeyExists()
*
* Returns true if the subkey exists within the currently
* open key and false if not.
*/
bool CRegistry::SubKeyExists(LPCTSTR lpszSub) {
bool bResult;
HKEY hTemp;
if ((__dwFlags & CREG_AUTOOPEN && !AutoOpen(KEY_QUERY_VALUE)) || hKey == NULL) {
assert(hKey);
return false;
}
bResult = (RegOpenKeyEx(hKey, lpszSub, 0, KEY_QUERY_VALUE, &hTemp) == ERROR_SUCCESS);
if (bResult) RegCloseKey(hTemp);
if (__dwFlags & CREG_AUTOOPEN) AutoClose();
return bResult;
}
/* ===================================================
* CRegistry::Open(LPCTSTR lpszRegPath, HKEY hRootKey, bool bAuto)
*
* Opens the key in which values will be read and stored, if the key
* is not already existent in the registry, it will be created (if the
* CREG_CREATE) flag is present while constructing the class.
*
* Upon opening the registry key, all of the REG_DWORD and REG_SZ values
* are loaded into a new corresponding CRegEntry for future access.
*
* Important Params:
*
* LPCTSTR lpszRegPath - A NULL terminated const character array containing,
* the location of the subkey.
* For example: "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run"
*
* HKEY hRootKey - An open key handle to the root key. By default
* this value is set as HKEY_LOCAL_MACHINE.
* Another Example: HKEY_CURRENT_USER
*
* Returns true on success and false on failure.
*/
bool CRegistry::Open(LPCTSTR lpszRegPath, HKEY hRootKey, DWORD dwAccess, bool bAuto) {
bool bNew = true;
/* If the key is being auto opened, skip directly to opening */
if (bAuto) goto SkipNoAuto;
/* The key is being opened manually, if the key location differs
from the last opened location, clear the current entries and
store the path information for future auto opening and key
deletion using DeleteKey() */
if (_lpszSubKey){
if (_tcsicmp(lpszRegPath, _lpszSubKey)) {
/* If new key, clear any currently stored entries */
for (size_t n=0; n<_reEntries.size(); n++)
delete _reEntries[n];
_reEntries.clear();
delete [] _lpszSubKey;
} else bNew = false;
}
if (bNew) {
/* Store path information for auto opening */
_lpszSubKey = new _TCHAR[_tcslen(lpszRegPath)+1];
_tcscpy(_lpszSubKey, lpszRegPath);
}
_hRootKey = hRootKey;
SkipNoAuto:
/* This is where the key is actually opened (if all goes well).
If the key does not exist and the CREG_CREATE flag is present,
it will be created... Any currently opened key will be closed
before opening another one. After opening the key, Refresh() is
called and the key's values are stored in memory for future use. */
if (hKey != NULL) Close();
/* If auto opening is set and this is a manual opening
set the appropriate access rights */
if (__dwFlags & CREG_AUTOOPEN && !bAuto) {
dwAccess = CREG_CREATE ? KEY_CREATE_SUB_KEY | KEY_QUERY_VALUE : KEY_QUERY_VALUE;
}
/* When key creation is enabled and auto opening is disabled,
include key creation in the access rights */
else if (__dwFlags & ~CREG_AUTOOPEN && __dwFlags & CREG_CREATE)
dwAccess |= KEY_CREATE_SUB_KEY;
/* Open or create the sub key, and return the result: */
LONG lResult = (__dwFlags & CREG_CREATE ?
RegCreateKeyEx(hRootKey, lpszRegPath, 0, NULL, REG_OPTION_NON_VOLATILE, dwAccess, NULL, &hKey, NULL)
: RegOpenKeyEx(hRootKey, lpszRegPath, 0, dwAccess, &hKey));
return (lResult == ERROR_SUCCESS ? (bAuto ? true : Refresh()) : false);
}
/* ===================================================
* CRegistry::AutoOpen()
*
* If the CREG_AUTOOPEN flag is true, this function is called whenever
* an action needs to be performed involving the registry key.
*
* DWORD dwAccess controls the access required for key use.
*/
bool CRegistry::AutoOpen(DWORD dwAccess) {
assert(_lpszSubKey != NULL);
return (hKey == NULL && __dwFlags & CREG_AUTOOPEN ? Open(_lpszSubKey, _hRootKey, dwAccess, true) : true);
}
/* ===================================================
* CRegistry::AutoClose()
*
* If the CREG_AUTOOPEN flag is true, this function is called whenever
* an action has been performed on an open registry key and the key is no longer
* being accessed.
*/
void CRegistry::AutoClose() {
if (__dwFlags & CREG_AUTOOPEN) Close();
}
/* ===================================================
* CRegistry::Refresh()
*
* Enumerates all the REG_SZ, REG_BINARY and REG_DWORD values within the open
* registry key and stores them in a CRegEntry class for future
* access. Returns true on success and false on failure.
*/
bool CRegistry::Refresh() {
DWORD dwBufferSize;
DWORD dwType;
DWORD dwNameLen;
DWORD dwValueCount;
LPBYTE lpbBuffer;
DWORD dwPrevFlags = __dwFlags;
_TCHAR cValueName[_MAX_PATH];
if ((__dwFlags & CREG_AUTOOPEN && !AutoOpen(KEY_QUERY_VALUE)) || hKey == NULL)
return false;
if (NOT_ES(RegQueryInfoKey(hKey, NULL, NULL, NULL, NULL, NULL, NULL, &dwValueCount, NULL, NULL, NULL, NULL)))
return false;
lpbBuffer = new BYTE[_MAX_REG_VALUE];
/* Halt auto opening and set loading flag */
__dwFlags = (__dwFlags | CREG_LOADING) & ~CREG_AUTOOPEN;
if (dwValueCount > _reEntries.size())
_reEntries.reserve(dwValueCount);
for( DWORD dwIndex = 0; dwIndex < dwValueCount; dwIndex++) {
dwNameLen = sizeof(cValueName); dwBufferSize = _MAX_REG_VALUE;
cValueName[0] = 0;
if (NOT_ES(RegEnumValue(hKey, dwIndex, cValueName, &dwNameLen, NULL, &dwType, lpbBuffer, &dwBufferSize)))
continue;
switch (dwType) {
case REG_DWORD:
this[0][cValueName] = (LPDWORD)lpbBuffer;
break;
case REG_SZ:
this[0][cValueName] = (LPCTSTR)lpbBuffer;
break;
case REG_MULTI_SZ:
this[0][cValueName].SetMulti((LPCTSTR)lpbBuffer, dwBufferSize/sizeof(TCHAR));
break;
case REG_BINARY:
this[0][cValueName].SetBinary(lpbBuffer, (size_t)dwBufferSize);
break;
}
}
if ((__dwFlags = dwPrevFlags) & CREG_AUTOOPEN) AutoClose();
delete [] lpbBuffer;
return true;
}
/* ===================================================
* CRegistry::DeleteKey()
*
* Deletes the key which is currently opened, including any
* subkeys and values it may contain.
*
* NOTE: Use extreme caution when calling this function
*/
void CRegistry::DeleteKey() {
OSVERSIONINFO osvi;
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
if (GetVersionEx(&osvi) && osvi.dwPlatformId == VER_PLATFORM_WIN32_NT)
DeleteKey(_hRootKey, _lpszSubKey);
else
RegDeleteKey(_hRootKey, _lpszSubKey);
Close();
}
/* ===================================================
* CRegistry::DeleteKey(HKEY hPrimaryKey, LPCTSTR lpszSubKey)
*
* Private member function which is called by DeleteKey()
* This function is designed for NT based systems as it recursively
* deletes any subkeys present.
*/
void CRegistry::DeleteKey(HKEY hPrimaryKey, LPCTSTR lpszSubKey) {
DWORD dwKeyLen;
FILETIME ftTemp;
HKEY hTempKey;
LONG lResult = ERROR_SUCCESS;
LPTSTR lpszKey = new _TCHAR[_MAX_PATH];
if (!_tcslen(lpszSubKey) || !hPrimaryKey) { assert(hPrimaryKey != NULL); goto cleanup; }
if (IS_ES(RegOpenKeyEx(hPrimaryKey, lpszSubKey, 0, KEY_ENUMERATE_SUB_KEYS | KEY_WRITE, &hTempKey))){
while (IS_ES(lResult)) {
dwKeyLen = _MAX_PATH;
lResult = RegEnumKeyEx(hTempKey, 0, lpszKey, &dwKeyLen, NULL, NULL, NULL, &ftTemp);
if (lResult == ERROR_SUCCESS) DeleteKey(hTempKey, lpszKey);
else if (lResult == ERROR_NO_MORE_ITEMS) RegDeleteKey(hPrimaryKey, lpszSubKey);
}
RegCloseKey(hTempKey); hTempKey = NULL;
}
cleanup: delete [] lpszKey;
}
/* ===================================================
* CRegistry::Close()
*
* If a key is currently open, it will be closed. This should
* be called when you no longer need to access the registry key
* and the CREG_AUTOOPEN flag is not true. However, Close() is
* called on class deconstruction so it is not required.
*/
void CRegistry::Close() {
if (hKey != NULL) { RegCloseKey(hKey); hKey = NULL; }
}
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