From: vinit dhatrak <vinit.dhatrak@gmail.com>
To: Siddu <siddu.sjce@gmail.com>
Cc: linux-c-programming@vger.kernel.org
Subject: Re: getch() in linux
Date: Sat, 24 Oct 2009 17:49:55 +0530 [thread overview]
Message-ID: <edf0f34e0910240519m788d1350qdbfc2bf8174f243a@mail.gmail.com> (raw)
In-Reply-To: <9b0a5b990910240234k35e91ba8kf1fd0917bf68d21d@mail.gmail.com>
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
>
> The getch, wgetch, mvgetch and mvwgetch, routines read a character
> from the window. In no-delay mode, if no input is waiting,
> the value ERR is returned. In delay mode, the program waits until
> the system passes text through to the program. Depending
> on the setting of cbreak, this is after one character (cbreak mode),
> or after the first newline (nocbreak mode). In half-de‐
> lay 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 from him
>
>
>
>
> --
> Regards,
> ~Sid~
> I have never met a man so ignorant that i couldn't learn something from him
> --
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>
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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prev parent reply other threads:[~2009-10-24 12:19 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <9b0a5b990910240207x766817c5t45b87c84349873e9@mail.gmail.com>
2009-10-24 9:34 ` getch() in linux Siddu
2009-10-24 12:19 ` vinit dhatrak [this message]
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