MFC下面弹出一个选择文件夹对话框

BROWSEINFO bi;
TCHAR szBuffer[MAX_PATH];
ZeroMemory(&bi,sizeof(BROWSEINFO));
memset(szBuffer,0,MAX_PATH);
//bi.hwndOwner = NULL;
//bi.pszDisplayName = szBuffer;
//bi.lpszTitle = _T("Please select a directory:");
//bi.ulFlags = BIF_BROWSEINCLUDEFILES;
LPITEMIDLIST idl = SHBrowseForFolder(&bi);
if (NULL == idl)
{
return;
}
SHGetPathFromIDList(idl,szBuffer);

CString str;
str.Format(_T("%s\\"),szBuffer);
AfxMessageBox(str);