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30 * @Id: curs_beep.3x,v 1.7 1998/03/11 21:12:53 juergen Exp @
34 <TITLE>curs_beep 3x</TITLE>
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46 <STRONG>beep</STRONG>, <STRONG>flash</STRONG> - <STRONG>curses</STRONG> bell and screen flash routines
50 <H2>SYNOPSIS</H2><PRE>
51 <STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
53 <STRONG>int</STRONG> <STRONG>beep(void);</STRONG>
54 <STRONG>int</STRONG> <STRONG>flash(void);</STRONG>
58 <H2>DESCRIPTION</H2><PRE>
59 The <STRONG>beep</STRONG> and <STRONG>flash</STRONG> routines are used to alert the terminal
60 user. The routine <STRONG>beep</STRONG> sounds an audible alarm on the
61 terminal, if possible; otherwise it flashes the screen
62 (visible bell). The routine <STRONG>flash</STRONG> flashes the screen, and
63 if that is not possible, sounds the alert. If neither
64 alert is possible, nothing happens. Nearly all terminals
65 have an audible alert (bell or beep), but only some can
70 <H2>RETURN VALUE</H2><PRE>
71 These routines return <STRONG>OK</STRONG> if they succeed in beeping or
72 flashing, <STRONG>ERR</STRONG> otherwise.
76 <H2>EXTENSIONS</H2><PRE>
77 SVr4's beep and flash routines always returned <STRONG>OK</STRONG>, so it
78 was not possible to tell when the beep or flash failed.
82 <H2>PORTABILITY</H2><PRE>
83 These functions are defined in the XSI Curses standard,
84 Issue 4. Like SVr4, it specifies that they always return
89 <H2>SEE ALSO</H2><PRE>
90 <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>
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