How to communicate with com port?

This is a discussion on How to communicate with com port? within the C++ Programming forums, part of the General Programming Boards category; is there any way to communite with LPT and Com port? i mean is like assembly language we can send ...

  1. #1
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    How to communicate with com port?

    is there any way to communite with LPT and Com port?
    i mean is like assembly language we can send signal to a device but now i want it in C++ programming.

    can anyone give some example?
    how to open the port and the port name in C++.

    10z for help!!!!

  2. #2
    and the hat of wrongness Salem's Avatar
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    Tell us which Operating system and Compiler you're using.

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    windows XP
    using borland C++ and MS Visual C++....

  4. #4
    I am the worst best coder Quantrizi's Avatar
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    This thread might be of some use for you: serial port programming

    Basically, all you need are [assuming you ain't using threads] a handle, and the functions: ReadFile(), WriteFile(), CreateFile(), CloseFile().

  5. #5
    Registered User Codeplug's Avatar
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    I've posted a simple wrapper class for perform serial port I/O in this thread.

    If you want to learn how to do it yourself: Serial Communications in Win32.

    gg

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    10z i'll try it...

    and how about for the LPT port?

  7. #7
    Registered User Codeplug's Avatar
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    Depends on the device, but you can read and write to "LPT1" is the same fashion using CreateFile(), ReadFile(), WriteFile() etc...

    gg

  8. #8
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    If you have any problems on this project, or more detailed questions on the subject, I suggest you use the Network / Device Communications board - you're more likely to have your thread read by someone who is quite knowledgeable in that area.

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