แปลง MBOX เป็น MSG ใน C ++

System::SharedPtr<IEWSClient> client = GetExchangeEWSClient(GetExchangeTestUser());
       
// Call ListMessages method to list messages info from Inbox
System::SharedPtr<ExchangeMessageInfoCollection> msgCollection = client->ListMessages(client->get_MailboxInfo()->get_InboxUri());
       
int32_t count = 0;
// Loop through the collection to get Message URI
for (auto msgInfo : System::IterateOver(msgCollection)){
    System::String strMessageURI = msgInfo->get_UniqueUri();
   
    // Now get details via FetchMessage() and Save as Msg
    System::SharedPtr<MailMessage> message = client->FetchMessage(strMessageURI);
    message->Save(dataDir + (count++) + u"_out.msg", SaveOptions::get_DefaultMsgUnicode());
}