C++ code:

 //
  // About dialog box
  //  About dialog box features updating display of
  // the current time.
  //
  class TAboutTimeDialog : public TDialog
  {
      private:
      char CurrentTime[50];     // current time
      TInputLine *TimeDisplay;  // Inputline to display
      // the time

      protected:

      // Get the time string
      // from DOS and store in date_time
      void GetTimeString(char *date_time);

      public:

      TAboutTimeDialog(char *Title);

      // implement idle function for time updating
      void idle(void);

      virtual void handleEvent(TEvent &theEvent);
  };