beep(3x) — Linux manual page


curs_beep(3X)                                                  curs_beep(3X)

NAME         top

       beep, flash - curses bell and screen flash routines

SYNOPSIS         top

       #include <curses.h>

       int beep(void);
       int flash(void);

DESCRIPTION         top

       The beep and flash routines are used to alert the terminal user.  The
       routine beep sounds an audible alarm on the terminal, if possible;
       otherwise it flashes the screen (visible bell).  The routine flash
       flashes the screen, and if that is not possible, sounds the alert.
       If neither alert is possible, nothing happens.  Nearly all terminals
       have an audible alert (bell or beep), but only some can flash the

RETURN VALUE         top

       These routines return OK if they succeed in beeping or flashing, ERR

EXTENSIONS         top

       SVr4's beep and flash routines always returned OK, so it was not
       possible to tell when the beep or flash failed.

PORTABILITY         top

       These functions are described in the XSI Curses standard, Issue 4.
       Like SVr4, it specifies that they always return OK.

SEE ALSO         top


COLOPHON         top

       This page is part of the ncurses (new curses) project.  Information
       about the project can be found at 
       ⟨⟩.  If you have a
       bug report for this manual page, send it to  This page was obtained from the
       project's upstream Git mirror of the CVS repository
       ⟨git://⟩ on 2020-09-18.  (At that
       time, the date of the most recent commit that was found in the repos‐
       itory was 2020-08-17.)  If you discover any rendering problems in
       this HTML version of the page, or you believe there is a better or
       more up-to-date source for the page, or you have corrections or
       improvements to the information in this COLOPHON (which is not part
       of the original manual page), send a mail to