Re: getch() in linux

On Sat, Oct 24, 2009 at 3:04 PM, Siddu <[email protected]> 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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