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curs_beep(3)
NAME
  curs_beep, beep, flash - Curses bell and screen flash routines

LIBRARY
  Curses Library (libcurses.a, libcurses.so)

SYNOPSIS
  #include <curses.h>

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

STANDARDS
  Interfaces documented on this reference page conform to industry standards
  as follows:

  beep, flash:	XPG4, XPG4-UNIX

  Refer to the standards(5) reference page for more information about
  industry standards and associated tags.

DESCRIPTION
  The beep and flash routines are used to alert the terminal user.  The
  routine beep sounds the audible alarm on the terminal, if possible. If an
  audible alarm is not possible, the routine flashes the screen (visible
  bell), if possible.

  The routine flash flashes the screen, and if that is not possible, sounds
  the audible alarm.

  If neither an audible or visual signal is possible, these routines produce
  no results.  Nearly all terminals have an audible signal (bell or beep),
  but only some can flash the screen.

NOTES
  The header file curses.h automatically includes the header file stdio.h.

RETURN VALUES
  These routines always return OK.

RELATED INFORMATION
  Functions: curses(3)

  Others: standards(5)