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On Wed, 4 Jan 2006 16:13:34 UTC, ""
<> wrote:

> i need to check the stdin, repeatedly for an input form the keyboard,
> with out prompting the user to press a key or without returning pressed
> key on screen..
>
> now the problem is that if i use getc() the program execution stpos at
> this line and waits for the user to press a key. cant use getchar
> because the key pressed appears on the screen and moreover it is
> buffered.
>
> what i need is a small technique whereby which I can check the stdin
> for an input, without prompting the user(the user will enter a key as
> and when he wishes, not depending on the program) AND without halting
> the execution (as getc() does) AND without displaying the key on the
> screen AND should store the pressed key to variable
>
Impossible mission with standard C. stdin is a stream assigned to
something nobody knows at runtime what it can be like a keyboard, a
file or something else.

Whenever you needs the behavior you descreibes you should ask the
system the program should run under. It may (or may even not) serve
you with an API thad does exactly that.

--
Tschau/Bye
Herbert

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