Date: Wed, 07 Jun 1995 08:35:06 -0500 (CDT)
From: Aaron Ucko <UCKO AT VAX1 DOT ROCKHURST DOT EDU>
Subject: Re: libgrx.a corrupt?
To: imacky AT us DOT oracle DOT com
Cc: djgpp AT sun DOT soe DOT clarkson DOT edu
Organization: Rockhurst College; Kansas City, MO

>On a side note, how do I manipulate the PC speaker?  All I want is to be
>able to set frequency & duration, so I can have a good-beep and a bad-beep.

#include <pc.h>
...
sound(f); /* f is the desired frequency */
usleep(t); /* t is the duration in microseconds (1e-6 s) */
nosound();

--- Aaron Ucko (ucko AT vax1 DOT rockhurst DOT edu; finger for PGP public key) | httyp!
Geek code 2.1 [for explanation, finger hayden@ | `God's Laws' (Rudy Rucker,  
vax1.mankato.msus.edu]: GCS/M/S d(-) H s g+ p? \ _Master of Space and Time_):
!au a17 w+ v+(++) C++(+++)>++++ UL++(S+)>++++	\ 1) Be clean. 2) Follow Gary.
P+(++) L++ 3(-) E- N+(++) K- W--(---) M-@ V-(--) \ 3) Teach God's Laws.
po-(--) Y+ t(+) !5 j(++) R(-) G' tv--(-) b+++	  +---------------------------
!D(--) B--(---) e>++++(*) u++(@) h!() f(+) r-(--)>+++ n+(-) y?