接受端源代码：

void CMailslotSrvView::OnMailslotsrv()
{
 // TODO: Add your command handler code here
 HANDLE hMailslot = NULL;
 char buf[100] = "/0";
 DWORD dwRead  = 0;

 hMailslot = CreateMailslot(".//mailslot//mymailslot", 0, MAILSLOT_WAIT_FOREVER, NULL);

 if (INVALID_HANDLE_VALUE == hMailslot)
 {
  MessageBox("create mail slot failed...");

  return;
 }

  if (!ReadFile(hMailslot, buf, 100, &dwRead, NULL))
 {
  MessageBox("read data failed");

  return;
 }

 MessageBox(buf);

 CloseHandle(hMailslot);
}

发送端源代码： 

void CMailSlotSendView::OnMailslotsend()
{
 // TODO: Add your command handler code here

 HANDLE hMailslot = NULL;
 char buf[]  = "hello, andylin!/r/nI love my baby so much!";
 DWORD dwWrite  = 0;

        hMailslot = CreateFile(".//mailslot//mymailslot", GENERIC_WRITE, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);

 if (hMailslot == INVALID_HANDLE_VALUE)
 {
  MessageBox("open mail slot failed...");

  return;
 }

 if (!WriteFile(hMailslot, buf, strlen(buf) + 1, &dwWrite, NULL))
 {
  MessageBox("Write file failed...");
  CloseHandle(hMailslot);

  return;
 }

 CloseHandle(hMailslot);
}