Folder Select Dialog in MFC

BROWSEINFO bi; 
ZeroMemory(&bi, sizeof(bi)); 
TCHAR szDisplayName[MAX_PATH]; 
szDisplayName[0] = ' '; 

bi.hwndOwner = NULL; 
bi.pidlRoot = NULL; 
bi.pszDisplayName = szDisplayName; 
bi.lpszTitle = _T("Please select a folder:"); 
bi.ulFlags = BIF_RETURNONLYFSDIRS; 
bi.lParam = NULL; 
bi.iImage = 0; 

LPITEMIDLIST pidl = SHBrowseForFolder(&bi); 
TCHAR szPathName[MAX_PATH]; 
if (NULL != pidl) 
{ 
BOOL bRet = SHGetPathFromIDList(pidl,szPathName); 
if(bRet)
{
   AfxMessageBox(szPathName); 
}

}