beep(3ncurses)

NAME

   beep, flash - curses bell and screen flash routines

SYNOPSIS

   #include <curses.h>

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

DESCRIPTION

   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 screen.

RETURN VALUE

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

EXTENSIONS

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

PORTABILITY

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

SEE ALSO

   ncurses(3NCURSES)

                                                            beep(3NCURSES)

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