Re: Port szeregowy, drukarka fiskalna znak NULL

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#334583

From: PaSkol
Date: Fri, 06 Jan 2012 13:01

24 lines
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W dniu 2012-01-06 13:30, Główny Użytkownik pisze:
>
>    query := pchar(s);
>    if (hCommDev<>  INVALID_HANDLE_VALUE)
>      and (hCommDev>  0) then
>    begin
>      repeat
>        StrCopy(bufferOut, query);
>        FlushFileBuffers(hCommDev);
>      until (writeSerialPort(hCommDev, Strlen(bufferOut))<>  FALSE);
>    end;

Co to jest bufferOut? Bufor o ustalonej długości? Jeśli tak, to można 
wykonać:
Move(s[1], bufferOut, Min(Length(s), Length(bufferOut))

Bo StrCopy (OIDP) kopiuje wg konwencji C, czyli do pierwszego #0;


-- 
Dearth PaSkol

- Ciemna druga strona jest.
- Nie marudź Yoda, tylko jedz tego tosta.

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From: PaSkol <DearthNOSPAMpaskol@op.pl>
Newsgroups: pl.comp.lang.delphi
Subject: Re: Port szeregowy, drukarka fiskalna znak NULL
Date: Fri, 06 Jan 2012 14:01:02 +0100
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