enumKey

I'm having trouble enumerating a key's subkeys.

Code:

---

        DWORD iIndex = 0;
        LPTSTR pszName = "";
        LPDWORD pnNameLength = 0;
        FILETIME* pftLastWriteTime = NULL;


        CRegKey regEnum;
        regEnum.Open(HKEY_LOCAL_MACHINE, "SYSTEM\\CurrentControlSet\\Control\\Video", KEY_READ);
 
        for(iIndex = 0; TRUE; iIndex++)
        {
            regEnum.EnumKey(iIndex, pszName, pnNameLength, pftLastWriteTime);
            int i = 0;
        }

---

for each loop, pnNameLength is undefined value, ans pszName = "". Why? What am I doing wrong. PS: this is impossible to find an example for on the web!!

Where does this CRegKey class come from?

My advice: search this board for the registry class I wrote ages ago and use it instead. It's got to be better.