🚀 go-pugleaf

oooooooooooooooooooops!

thank you I appreciate your help.

In fact, there was an unrearchable code warning message, now it's working
ok.

David





"Remy Lebeau (TeamB)" <gambit47@yahoo.com> escribi� en el mensaje
news:3ef8c673$3@newsgroups.borland.com...
>
> "david" <dmarquezl@hotmail.com> wrote in message
> news:3ef8bbd6@newsgroups.borland.com...
>
> > I'm trying to use the com port, but when I read this buffer and there
are
> > not data, the handle don`t  return the control to the next code line.
>
> Its not supposed to.  You're reading the port synchronously and you never
> set the timeouts for the port, thus it is just going to sit there until
data
> is available.  You should be using overlapped I/O for the reading.  Have a
> look at the OVERLAPPED structure and the GetOverlappedResult() function.
>
> >   if( hCom == INVALID_HANDLE_VALUE )
> >     return false;
> >   else
> >     return true;
>
> You're never going to reach the rest of your code because you are
returning
> too soon.  Thus you never get a chance to set the timeouts.  Didn't the
> compiler warn you about "unreachable code"?  Get rid of the second
'return'
> statement.
>
>
> Gambit
>
>