// Creates a subfolder under pFolder, opens the folder if it already exists
LPMAPIFOLDER CMAPIEx::CreateSubFolder(LPCTSTR szSubFolder, LPMAPIFOLDER pFolder) {
if (!pFolder) {
pFolder = m_pFolder;
if (!pFolder) return NULL;
}
LPMAPIFOLDER pSubFolder = NULL;
ULONG ulFolderType = FOLDER_GENERIC;
ULONG ulFlags = OPEN_IF_EXISTS | cm_nMAPICode;
pFolder->CreateFolder(ulFolderType, (LPTSTR)szSubFolder, NULL, NULL, ulFlags, &pSubFolder);
return pSubFolder;
}