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  1. KamalKumar

    ReadFile buffer in NT/XP

    Hi, Thanks for the reply.To give a slight insight into the COM port access ,I am using Win32 API which in real uses the same Com port driver OS places in between. I got around the problem ,for the time being by setting comm timeouts to null and reading com port in multiples.I could change any...
  2. KamalKumar

    ReadFile buffer in NT/XP

    Hi all, I wrote an assembly language program four years back in Win 95/98.It also works on ME.But now my client wants it NT/XP compatible.Everything works fine except reading the com port.My problem is this-no matter how many bytes I tell the function ReadFile to read,it reads only 258 bytes(the...

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