From: Hans-Bernhard Broeker <broeker AT physik DOT rwth-aachen DOT de>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Problem under Win98 DOS box
Date: 19 Feb 2001 14:10:36 GMT
Organization: Aachen University of Technology (RWTH)
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Vincenzo Morello <morellov AT tin DOT it> wrote:
> I use:
> 	putchar('\07');

That had better be

	putchar('\a');

in programs meant to be portable. On most platforms, '\a' is actually
'\07', the BEL character defined in the ASCII charset. But there are
others...

> to emit a beep under DJGPP+GRX.

> When calling this function under Windows 98 DOS box, the graphic screen often
> locks and further graphics output will not be drawn correctly.

I've no idea what might cause that.

> Is there an alternate way to play a beep in DJGPP ?

Yes: the libc function pair sound() and nosound(). They'll even let
you control the frequency and duration of the beep. I.e. you can
boooooop instead of beep, if you want to.
-- 
Hans-Bernhard Broeker (broeker AT physik DOT rwth-aachen DOT de)
Even if all the snow were burnt, ashes would remain.