linux beep function

This is a discussion on linux beep function within the C++ Programming forums, part of the General Programming Boards category; Hi, I am writing a morse code converter and I am using the Beep() function in the windows header file ...

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    linux beep function

    Hi,

    I am writing a morse code converter and I am using the Beep() function in the windows header file to make the beep sounds, but I cannot seem to find an equivalent function for linux, man beep doesn't give me anything. Also a sleep function which allowed sleeping for only fractions of a second would be useful as the sleep function in linux doesn't accept decimals.

    Thanks in advance,

    Calef13

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    Frequently Quite Prolix dwks's Avatar
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    To be very basic but very portable, you could always print a '\a'.

    Or you could use ANSI escape sequences like this does. http://abcplus.sourceforge.net/beep.c

    You could always use system("beep").
    dwk

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    oh thanks, I thought that system() was windows only, that will come in handy.

    Calef13

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    Deathray Engineer MacGyver's Avatar
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    The bare basics of the functionality of system() works on both *nix and Windows systems, however, there are problems with writing portable applications for both that use it. For example, to list the contents of a directory, it's ls vs dir.

    Overall, I would recommend against using system() if you don't have to use it.

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    Yeah, I usually avoided it anyway, I am only using it for beep but I'll keep that in mind.

    Does anyone know a sleep function which takes milliseconds for input in linux?

    Calef13

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    Frequently Quite Prolix dwks's Avatar
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    I don't think anything here will help: http://faq.cprogramming.com/cgi-bin/...&id=1043284392

    Do a board search. I've never actually needed such a function, but usleep() comes to mind.
    dwk

    Seek and ye shall find. quaere et invenies.

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    "Testing can only prove the presence of bugs, not their absence." -- Edsger Dijkstra
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    In accordance with MacGyver's advice I'll try and avoid using system("sleep") and try out those functions. The program will be linux/unix only anyway as it uses the c sockets library.

    Calef13

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    Quote Originally Posted by Calef13 View Post
    Does anyone know a sleep function which takes milliseconds for input in linux?
    man usleep. it takes microseconds.
    Code:
           #include <unistd.h>
    
           int usleep(useconds_t usec);

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