BOOL RegDelnode (HKEY hKeyRoot, LPTSTR lpSubKey)
{
TCHAR szDelKey[MAX_PATH*2];
StringCchCopy (szDelKey, MAX_PATH*2, lpSubKey);
return RegDelnodeRecurse(hKeyRoot, szDelKey);
}
BOOL CRegOpt::RegDelnodeRecurse(HKEY hKeyRoot, LPTSTR lpSubKey)
{
LPTSTR lpEnd;
LONG lResult;
DWORD dwSize;
TCHAR szName[MAX_PATH];
HKEY hKey;
FILETIME ftWrite;
lResult = RegDeleteKey(hKeyRoot, lpSubKey);
if (lResult == ERROR_SUCCESS)
{
m_iErrCode = GetLastError();
return TRUE;
}
lResult = RegOpenKeyEx (hKeyRoot, lpSubKey, 0, KEY_READ, &hKey);
if (lResult != ERROR_SUCCESS)
{
if (lResult == ERROR_FILE_NOT_FOUND)
{
return TRUE;
}
else
{
m_iErrCode = GetLastError();
return FALSE;
}
}
lpEnd = lpSubKey + lstrlen(lpSubKey);
if (*(lpEnd - 1) != '\\')
{
*lpEnd = '\\';
lpEnd++;
*lpEnd = '\0';
}
dwSize = MAX_PATH;
lResult = RegEnumKeyEx(hKey, 0, szName, &dwSize, NULL, NULL, NULL, &ftWrite);
if (lResult == ERROR_SUCCESS)
{
do {
lstrcpy (lpEnd, szName);
if (!RegDelnodeRecurse(hKeyRoot, lpSubKey))
{
break;
}
dwSize = MAX_PATH;
lResult = RegEnumKeyEx(hKey, 0, szName, &dwSize, NULL,NULL, NULL, &ftWrite);
} while (lResult == ERROR_SUCCESS);
}
lpEnd--;
*lpEnd = TEXT('\0');
RegCloseKey (hKey);
lResult = RegDeleteKey(hKeyRoot, lpSubKey);
if (lResult == ERROR_SUCCESS)
return TRUE;
return FALSE;
}
//*************************************************************
// http://msdn.microsoft.com/en-us/library/ms724235%28VS.85%29.aspx
// RegDelnodeRecurse()
//
// Purpose: Deletes a registry key and all its subkeys / values.
//
// Parameters: hKeyRoot - Root key
// lpSubKey - SubKey to delete
//
// Return: TRUE if successful.
// FALSE if an error occurs.
//
//*************************************************************
BOOL RegDelnodeRecurse (HKEY hKeyRoot, LPTSTR lpSubKey)
{
LPTSTR lpEnd;
LONG lResult;
DWORD dwSize;
TCHAR szName[MAX_PATH];
HKEY hKey;
FILETIME ftWrite;
// First, see if we can delete the key without having
// to recurse.
lResult = RegDeleteKey(hKeyRoot, lpSubKey);
if (lResult == ERROR_SUCCESS)
return TRUE;
lResult = RegOpenKeyEx (hKeyRoot, lpSubKey, 0, KEY_READ, &hKey);
if (lResult != ERROR_SUCCESS)
{
if (lResult == ERROR_FILE_NOT_FOUND) {
logPrint("Key not found.\n");
return TRUE;
}
else {
logPrint("Error opening key.\n");
return FALSE;
}
}
// Check for an ending slash and add one if it is missing.
lpEnd = lpSubKey + lstrlen(lpSubKey);
if (*(lpEnd - 1) != TEXT('\\'))
{
*lpEnd = TEXT('\\');
lpEnd++;
*lpEnd = TEXT('\0');
}
// Enumerate the keys
dwSize = MAX_PATH;
lResult = RegEnumKeyEx(hKey, 0, szName, &dwSize, NULL,
NULL, NULL, &ftWrite);
if (lResult == ERROR_SUCCESS)
{
do {
StringCchCopy (lpEnd, MAX_PATH*2, szName);
if (!RegDelnodeRecurse(hKeyRoot, lpSubKey)) {
break;
}
dwSize = MAX_PATH;
lResult = RegEnumKeyEx(hKey, 0, szName, &dwSize, NULL,
NULL, NULL, &ftWrite);
} while (lResult == ERROR_SUCCESS);
}
lpEnd--;
*lpEnd = TEXT('\0');
RegCloseKey (hKey);
// Try again to delete the key.
lResult = RegDeleteKey(hKeyRoot, lpSubKey);
if (lResult == ERROR_SUCCESS)
return TRUE;
return FALSE;
}
BOOL CRegOpt::RegDelnode(HKEY hKeyRoot, LPCTSTR lpSubKey)
{
TCHAR szDelKey[2 * MAX_PATH];
lstrcpy (szDelKey, lpSubKey);
return RegDelnodeRecurse(hKeyRoot, szDelKey);
}
