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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)