rs232 with win api

This is a discussion on rs232 with win api within the C Programming forums, part of the General Programming Boards category; hi, ive a problem: i want to controll the pins of the rs232. Is there any other way to controll ...

  1. #1
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    rs232 with win api

    hi, ive a problem:
    i want to controll the pins of the rs232.

    Is there any other way to controll the pins of the rs232 without win api?

    My OS is Xp. Or how can do that in C?

    There is a library conio.h with the funktion outp()
    why it isnt work by me??

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    Frequently Quite Prolix dwks's Avatar
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    outp() works on older, DOS-based Windows versions, like Windows 95 and 98. It fails all the time on Windows 2000 and XP.
    dwk

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    ahh ok.

    and is there any way to controll the pins in xp or 2k?
    if yes....which one, and how does it work?

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    and the hat of wrongness Salem's Avatar
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    wow, this a lil bit hard...

    what ive to do here?
    can anybody give me an sample how to use this in C?

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    and the hat of wrongness Salem's Avatar
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    You didn't say which compiler you were using.

    > can anybody give me an sample how to use this in C?
    You could try and google for some of those functions to see if there are examples used elsewhere on the web.

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    Frequently Quite Prolix dwks's Avatar
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    There is a library conio.h with the funktion outp()
    That might be a hint. But still, tell us what your compiler is.
    dwk

    Seek and ye shall find. quaere et invenies.

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    my compiler is gcc (dev-cpp).

    a question: y is it soo hard to controll the rs232?

    conio.h doesnt work with outp().

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    Frequently Quite Prolix dwks's Avatar
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    I meant that it might be a hint to your compiler since MSVC doesn't have it.
    dwk

    Seek and ye shall find. quaere et invenies.

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    Frequently Quite Prolix dwks's Avatar
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    A google search (for "rs232") turned up a lot of hits.
    dwk

    Seek and ye shall find. quaere et invenies.

    "Simplicity does not precede complexity, but follows it." -- Alan Perlis
    "Testing can only prove the presence of bugs, not their absence." -- Edsger Dijkstra
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    aah i ve already done this.....

    but didnt found something which was working...
    Win Api should work...

    but how?

    may i have to link "create file" in my C code ?
    or what?

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    the good-old-days of simple MS-DOS rs232 programming are loooong over. Programmers no longer have direct access to the hardware. So now you have to go through appropriate device drivers. In MS-Windows operating system that means using win32 api functions, or using MSComm.dll functions -- I haven't used the MSComm.dll but a lot of programmers do. and programming rs232 on *nix isn't any easier.

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    mmh soo please can u show me how?

    i havent much coding expierence like u. There are many tricks- sure...but i dont know them. Never done this before. I never used any dll files or win api files.

    soo can u please show me how? I only want to controll the outputs of rs232. only the 3 one.

    please i want to learn how it works...

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    Registered User CompiledMonkey's Avatar
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    Quote Originally Posted by alaturka
    please i want to learn how it works...
    You keep saying you want to learn but instead of searching around and finding the answers, you're asking everyone here to do it for you. It doesn't sound like anyone around here has done much of it for themselves, so go figure it out for yourself.

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    Here is a description of a comm ActiveX control that you can use in an MFC program. I don't know if you can use ActiveX controls in console or win32 api programs. Its pretty simple stuff with VC++ 6.0 compiler.

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