使用Mailslots的好处是，你很容易将他们集成到你的MFC程序中。

BEGIN_MESSAGE_MAP(UserList, CDialog)
 ON_MESSAGE(MAILSLOT_NOTIFY_MSG, OnMailSlotNotify)
END_MESSAGE_MAP()
        
// Receive message from a mailslot is a little more complicated. 

// This method will be called

// by the MailSlot class when the MailSlot class reads a new message.

LRESULT UserList::OnMailSlotNotify(WPARAM w, LPARAM l)
{
 MailSlotMessage msg;
 while (m_mailSlot.Read(msg)) {
     if (msg.MsgType() == MailSlotMessage::TEXT) {
         // If the type == MailSlotMessage::TEXT then we

         // should display the message in the

         // correct MailSlotDlg. Calling GetDlg(..) will

         // create the new dialog if it does

         // not already exist.

         MailSlotDlg * pWnd = GetDlg(msg.FromComputerName(), 
                msg.FromUserName());
         if (pWnd)
             pWnd->AddMessageToHistory(msg); // add message to history

     } else {
         // A special message is send when a new user 

         // logins in. This will cause us to

         // refresh the list.

         if (msg.MsgText() == LOGIN_MSG) {
  RefreshList();
         }
     }
 }
 return 1;
}