From mboxrd@z Thu Jan  1 00:00:00 1970
From: vinit dhatrak <vinit.dhatrak@gmail.com>
Subject: Re: getch() in linux
Date: Sat, 24 Oct 2009 17:49:55 +0530
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To: Siddu <siddu.sjce@gmail.com>
Cc: linux-c-programming@vger.kernel.org

On Sat, Oct 24, 2009 at 3:04 PM, Siddu <siddu.sjce@gmail.com> wrote:
> Hi all,
>
> Please help me understand whats the use of getch() in linux
>
> the man page says this ! but couldnt comprehend much out of it
>
> =C2=A0The getch, wgetch, mvgetch and mvwgetch, routines read a charac=
ter
> from the window.=C2=A0 In no-delay mode, if no input is waiting,
> =C2=A0the value ERR is returned.=C2=A0 In delay mode, the program wai=
ts until
> the system passes text through to the=C2=A0 program.=C2=A0=C2=A0 Depe=
nding
> =C2=A0on=C2=A0 the setting of cbreak, this is after one character (cb=
reak mode),
> or after the first newline (nocbreak mode).=C2=A0 In half-de=E2=80=90
> =C2=A0lay mode, the program waits until a character is typed or the
> specified timeout has been reached.
>
> what is delay mode they are talking about?
>
> and can some one give me a simple example for it ?
>
> do i ave to know abt ncurses to understand it ?
>
>
> --
> Regards,
> ~Sid~
> I have never met a man so ignorant that i couldn't learn something fr=
om him
>
>
>
>
> --
> Regards,
> ~Sid~
> I have never met a man so ignorant that i couldn't learn something fr=
om him
> --
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ml
>

Yes, you have to know about ncurses to understand this function.
Have a look at this,

http://tldp.org/HOWTO/NCURSES-Programming-HOWTO/index.html

Also, check man pages for halfdelay or timeout.
A simple "Hello World" program will give you some idea.

-Vinit
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