focal (3) flash.3ncurses.gz

Provided by: ncurses-doc_6.2-0ubuntu2.1_all bug

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)