C / C++ / MFC

//In MyDlg.h file
virtual void OnOK();

//in MyDlg.Cpp
void CMyDlg::OnOK()
{
  //Remove this line if already there
  //CDialog::OnOK();
}

BOOL CMyDialog::PreTranslateMessage(MSG* pMsg)
{
  if ((pMsg->message == WM_KEYUP) || (pMsg->message == WM_KEYDOWN))
  {
    if (pMsg->wParam == VK_RETURN)
    {
      // TODO: Process all we want from the RETURN key
<p></p>
      // Ignore further processing 
      return TRUE;
    }
  }
  return CDialog::PreTranslateMessage(pMsg);
}

typedef double (* pfnGetDouble) (double);

double GetDouble(double d)
{
	return d;
}

pfnGetDouble GetDoubleFunc()
{
	return (pfnGetDouble) GetDouble;
}

int main()
{
	pfnGetDouble pfGD = GetDoubleFunc();
	printf("%f\r\n", pfGD(42.0));
}

#define MAX_BUFFER 1024

int main()
{
   char      portName[] = "COM1";
   char      buffer[MAX_BUFFER];
   HANDLE    hFile;


   hFile = CreateFile(
      portName,
      GENERIC_READ | GENERIC_WRITE,
      0,
      NULL,
      OPEN_EXISTING,
      0,
      NULL);
      
   if (INVALID_HANDLE_VALUE != hFile)
   {
      if (ReadSerial(hFile, buffer, MAX_BUFFER))
      {
         printf("Received: '%s'\r\n", buffer);
      }
   }
}

BOOL ReadSerial(HANDLE hFile, char * buffer, DWORD bufferSize)
{
   BOOL    retval;
   DWORD   dw;

   buffer[0] = '\0';
   retval = FALSE;

   if (ReadFile(hFile, buffer, bufferSize - 1, &dw, NULL))
   {
      retval = TRUE;
      buffer[dw] = '\0';
   }

   return retval;
}

"Opinions are neither right nor wrong. I cannot change your opinion of me. I can, however, change what influences your opinion." - David Crow

"Opinions are neither right nor wrong. I cannot change your opinion of me. I can, however, change what influences your opinion." - David Crow