Picking up keyboard input

This is a discussion on Picking up keyboard input within the C Programming forums, part of the General Programming Boards category; Hey, So I've got this program that I'm writing that controls various things happening on screen. Nothing fancy, just an ...

  1. #1
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    Picking up keyboard input

    Hey,

    So I've got this program that I'm writing that controls various things happening on screen. Nothing fancy, just an ascii interface of sorts.

    Anyway, I've been using the fgetc and fgets commands to read input from stdin to make things happen, but now I would like to not have to press enter each time I want to do something. I would like to be able to simpley hit a button and have some reaction.

    I'm sure that there is a standard function for this, but I don't know what it is.

    Any suggestions?

    B

  2. #2
    System Novice siavoshkc's Avatar
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    You can use non-standard <console.h> header file.
    But it is better to use platform specific functions for best performance. Which OS are you using?
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    Thanks man,

    I'm working on the OSX command line, so for all intents and purposes BSD.

    B

  4. #4
    and the hat of wrongness Salem's Avatar
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    > I'm sure that there is a standard function for this, but I don't know what it is.
    Well there isn't.
    Read the FAQ.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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    Ok,

    Read the faq. Always good advice. Looks to me as though what I am really looking for here is the curses.h library.

    My computer has got a curses.h file! I went online and got a little example code. The curses.h library that i've got seems to define all the functions that the example code is looking for, but the linker doesn't seem to be able to find them?????

    What am I doing wrong here?

    B

  6. #6
    {Jaxom,Imriel,Liam}'s Dad Kennedy's Avatar
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    gcc -lncurses

  7. #7
    System Novice siavoshkc's Avatar
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    -ln curses?
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    Rocken!

    Thanks fellas.

    I'm up and running!

    B

  9. #9
    {Jaxom,Imriel,Liam}'s Dad Kennedy's Avatar
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    Quote Originally Posted by siavoshkc
    -ln curses?
    Nah, the lib is actually called "ncurses" on most *nix boxes. I believe it stands for "New Curses".

  10. #10
    System Novice siavoshkc's Avatar
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    So it is -l ncurses, yeah?
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  11. #11
    {Jaxom,Imriel,Liam}'s Dad Kennedy's Avatar
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    Yup. I have yet to find a system, however, that didn't work with -lncurses.

  12. #12
    cwr
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  13. #13
    The superhaterodyne twomers's Avatar
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    The FAQ talks about getch() in conio.h ... but, again, alas and all that, this is non-standard.

  14. #14
    cwr
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    Quote Originally Posted by twomers
    The FAQ talks about getch() in conio.h ... but, again, alas and all that, this is non-standard.
    Yes, there's no standard way, as Salem already said.

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