Date:	Sun, 08 Oct 2000 12:31:56 +0200
From:	"Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
Sender:	halo1 AT zahav DOT net DOT il
To:	dgrant79 AT hotmail DOT com
Message-Id:	<5567-Sun08Oct2000123156+0300-eliz@is.elta.co.il>
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CC:	djgpp AT delorie DOT com
In-reply-to:	<39e03e07_4@news1.prserv.net> (dgrant79@hotmail.com)
Subject:	Re: Getting characters from keyboard without CR
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> From: "David Grant" <dgrant79 AT hotmail DOT com>
> Newsgroups: comp.os.msdos.djgpp
> Date: Sun, 8 Oct 2000 02:20:01 -0700
> 
> Can anyone tell me how to get a character from the screen (I mean keyboard)
> without requiring a carriage return?  cin won't work, and neither will
> "&istream get(char c)" funtion.

The problem is that by default, stdin is in line-buffered mode.
Unfortunately, there's no ANSI standard way of getting a non-default
behavior that you want.

If you want your code to be portable to Unix environments, use the
termios functions to switch the standard input into a single-character
mode.  The docs of the DJGPP library describes the termios
capabilities, see the node "Termios functions" in libc.info.

The DJGPP archives, http://www.delorie.com/djgpp/mail-archives/, have
some messages relevant to this issue (search for "termios") which can
help you with details.

Note that termios might not be portable to other DOS/Windows
compilers, with the notable exception of Cygwin.  But it is portable
to Unix and GNU/Linux systems.

Alternatively, you could switch stdin into raw mode with a call to the
library function setmode.  This is probably DJGPP-specific (although
setmode exists in other compilers).  The library docs of setmode
should explain its effect and give some examples.

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