C / C++ / MFC

CString szCaption;
float fResult = 14.58;

szCaption.Format("%f" , fResult);
AfxMessageBox(szCaption);

<br />
void PumpMessages()<br />
{<br />
  MSG msg;<br />
  while(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))<br />
  {<br />
    TranslateMessage(&msg);<br />
    DispatchMessage(&msg);<br />
  }<br />
}<br />
<br />
// In lengthy operation<br />
while(1)<br />
{<br />
   DoSomething();<br />
   PumpMessages();<br />
}<br />

<br />
int SerialPortPoolFunction(void *Parameter)<br />
{<br />
   HANDLE Event=(HANDLE)Parameter; <br />
   for ( ;; ) <br />
   {<br />
      // Put the code to read from the Serial Port here<br />
<br />
      int i=WaitForSingleObject(Event,10); // Ex: 10 miliseconds. <br />
      if (i==WAIT_OBJECT_0)  // The event was signaled from outside<br />
         return 0; <br />
   }<br />
}<br />
<br />
<br />
<br />
// Now somewhere at startup:<br />
<br />
// Create an event that is going to be detected on your thread that reads from the serial port. <br />
<br />
HANDLE hEvent=CreateEvent(NULL,FALSE,FALSE,NULL); // I'm not sure about the parameters here<br />
<br />
// Now, execute the thread itself passing the hEvent handle<br />
DWORD id;<br />
HANDLE hThread=CreateThread(NULL, 0,  (LPTHREAD_START_ROUTINE)SerialPortPoolFunction,  <br />
(void *)hEvent,  0,  &id);<br />
}<br />