Registry Monitoring using RegNotifyChangeKeyValue - c++11

Question

The below code is to monitor the changes occurred in the registry (add, delete, modify) the waiting is done till some changed is occurred
Now looking for output in which key the change action is performed
the changes in registry the key name should be the output
void __cdecl _tmain(int argc, TCHAR *argv[])
{
DWORD dwFilter = REG_NOTIFY_CHANGE_NAME |
REG_NOTIFY_CHANGE_ATTRIBUTES |
REG_NOTIFY_CHANGE_LAST_SET |
REG_NOTIFY_CHANGE_SECURITY| REG_NOTIFY_THREAD_AGNOSTIC;
HANDLE hEvent;
HKEY hMainKey;
HKEY hKey;
LONG lErrorCode;
RegOpenKeyEx(HKEY_LOCAL_MACHINE,
TEXT("SOFTWARE\\444\\1"), 0, KEY_NOTIFY | KEY_CREATE_SUB_KEY | KEY_ENUMERATE_SUB_KEYS | KEY_QUERY_VALUE | KEY_WOW64_64KEY, &hKey);
// Create an event.
hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
if (hEvent == NULL)
{
_tprintf(TEXT("Error in CreateEvent (%d).\n"), GetLastError());
return;
}
// Watch the registry key for a change of value.
lErrorCode = RegNotifyChangeKeyValue(hKey,
TRUE,
dwFilter,
hEvent,
TRUE);
if (lErrorCode != ERROR_SUCCESS)
{
_tprintf(TEXT("Error in RegNotifyChangeKeyValue (%d).\n"), lErrorCode);
return;
}
// Wait for an event to occur.
_tprintf(TEXT("Waiting for a change in the specified key...\n"));
if (WaitForSingleObject(hEvent, INFINITE) == WAIT_FAILED)
{
_tprintf(TEXT("Error in WaitForSingleObject (%d).\n"), GetLastError());
return;
}
else
{
//Get chile events for the event key ... In this case select. Display the key name and values.
_tprintf(TEXT("\nChange has occurred.\n"));
std::cout << hEvent << std::endl;
_tprintf(TEXT("the modified key is",hEvent));//this was commited
Sleep(2000);
return;
}
// Close the key.
lErrorCode = RegCloseKey(hKey);
if (lErrorCode != ERROR_SUCCESS)
{
_tprintf(TEXT("Error in RegCloseKey (%d).\n"), GetLastError());
return;
}
// Close the handle.
if (!CloseHandle(hEvent))
{
_tprintf(TEXT("Error in CloseHandle.\n"));
return;
}
system("pause");
}