Implementation of timer function in MFC DLL

Method One:
Create a thread and read the system time over and over again? If the timing requirements are not strict, with sleep can be.
DWORD WINAPI TimerThread (lpvoid pamaram)  {      UINT oldtickcount, Newtickcount;      Oldtickcount = GetTickCount ();    Gets the number of milliseconds    while (true)      {          while (true)          {              newtickcount = GetTickCount ();  Gets the number of milliseconds            if (newtickcount-oldtickcount >= 60000)              {                  oldtickcount = Newtickcount;                  break;              }              else                  switchtothread ();          }      60 milliseconds Auto Call function      somefun ();      }      return 0;  }  

　　

Method Two:  the thread function in the DLL can be used like this using the timerUINT ThreadProc (LPVOID) {SetTimer (null, 1, n, null); MSG msg;//PeekMessage forces the system to establish a message stack peekmessage (&msg, NULL, NULL, NULL, FALSE) for the thread, while (GetMessage (&msg, NULL, NULL, NULL)) {switch (msg.message) {case wm_timer:{//is executed once every 5 seconds}break;} TranslateMessage (&msg);//dispatchmessage (&msg);} KillTimer (NULL, 1); return 0;}

　　

DWORD Tidtimer; UINT Uelapse; unsigned __stdcall timerthreadproc (void *param) {    MSG msg;    Uint_ptr Htimer;     if (Htimer = SetTimer (null, NULL, UELAPSE, 0)) = = 0)        MessageBox (null, L "Set Timer failed.", L "Error", MB_OK);    while (GetMessage (&msg, NULL, 0, 0))    {        switch (msg.message)        {case        Wm_timer:            //...            break;         Default: Break            ;        }    }    if (Htimer)        KillTimer (NULL, htimer);    return 0;} _beginthreadex (null, 0, timerthreadproc, NULL, 0, &tidtimer); ... PostThreadMessage (Tidtimer, wm_timer, 0, 0); A subsequent event handler starts the timer

　　

Implementation of timer function in MFC DLL