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From: TGMIKEY%CALSTATE.BITNET@wiscvm.wisc.EDU (Account Manager)
Newsgroups: comp.lang.c
Subject: RE: Re: HELP!!
Message-ID: <10318@brl-adm.ARPA>
Date: Fri, 13-Nov-87 13:27:41 EST
Article-I.D.: brl-adm.10318
Posted: Fri Nov 13 13:27:41 1987
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Comment: 10 Nov 87 03:10:42 PST
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From:     platt@emory.uucp
Subject:  Re: HELP!!
Comments: To: info-c@brl-smoke.arpa
To:       TGMIKEY@CCS.CSUSCC.CALSTATE.EDU

In article <gVY2nyy00Xo4t4U0-=@andrew.cmu.edu> jl3j+@andrew.cmu.edu (John Robert
 Leavitt) writes:
>Okay people,
>
>    The situation is this.  We need a way of getting one character from
>stdin without having to hit return.  That's it.
>
>Please, if you think you know how, drop me a line, okay?  Thanks.
>
>                -John.
>
Here is a hint at least:


#include <stdio.h>
#include <sgtty.h>

getttyc()
{
    struct sgttyb status_in,status_out;
    int chr;
    ioctl(0,TIOCGETP,&status_in);
    status_out=status_in;
    status_in.sg_flags = CBREAK;
    status_in.sg_flags &= ~ECHO;
    ioctl(0,TIOCSETP,&status_in);
    chr=getchar();
    ioctl(0,TIOCSETP,&status_out);
    return(chr);
}

char *getttys(a)
char *a;
{
    while((*a++ = getttyc())!='\n');
    *a='\0';
    return(a);
}


Hope this is a help!

Dan

===== Reply from Mike Khosraviani <TGMIKEY> ==========================

C provides you two functions for that :

   (1) x = getch(); where x is char x;  This will return a character from the
       keyboard (without echoing that character) and it does NOT require the
       user to follow his/her input with a <CR>.

    (2) x = getche(); where x is as above and the difference between this one
        and the above getch() is that the character will get echoed to the
        user as soon as typed.


Please, check your manual for more information on the kind of compiler that
you are using.  Also, I hope that I have understood the question correctly
and my answer will be of some help.


Mike