1. keyboard input using getc(0)
Hi all, I am finding that after using an expression like "choice = getc(0)"
the next time getc(0) is called, it doesn't wait for the keystroke. Something
left in the keyboard buffer from the first call?
I did search the docs before posting, but couldn't find an answer.
Thanks.
2. Re: keyboard input using getc(0)
Asa wrote:
>
> Hi all, I am finding that after using an expression like "choice = getc(0)"
> the next time getc(0) is called, it doesn't wait for the keystroke. Something
>
> left in the keyboard buffer from the first call?
>
> I did search the docs before posting, but couldn't find an answer.
>
> Thanks.
Look up wait_key
Bernie
My files in archive:
WMOTOR, XMOTOR, W32ENGIN, MIXEDLIB, EU_ENGIN, WIN32ERU, WIN32API
Can be downloaded here:
http://www.rapideuphoria.com/cgi-bin/asearch.exu?dos=on&win=on&lnx=on&gen=on&keywords=bernie+ryan
3. Re: keyboard input using getc(0)
Asa wrote:
>
> Hi all, I am finding that after using an expression like "choice = getc(0)"
> the next time getc(0) is called, it doesn't wait for the keystroke. Something
>
> left in the keyboard buffer from the first call?
>
> I did search the docs before posting, but couldn't find an answer.
>
getc() will return multiple codes for special keys. wait_key will translate
those for you.
--
Jeremy Cowgar
http://jeremy.cowgar.com
4. Re: keyboard input using getc(0)
I have done that already, but would like to at least know what was
up with getc(0)though. Before I switched to wait_key() i was doing this:
choice = getc(0)
choice = getc(0)
the first call would "clear the pipes" and the second, would work as expected :)
5. Re: keyboard input using getc(0)
Some keys cannot be expressed with only one ASCII code. For instance, F1 on
Linux is expressed as 3 ascii codes: 27, 79 and 80. So, using getc(0) would first
return 27. The very next call, 79 and again 80.
--
Jeremy Cowgar
http://jeremy.cowgar.com
6. Re: keyboard input using getc(0)
- Posted by ChrisBurch3 <crylex at gma??.com>
May 16, 2008
-
Last edited May 17, 2008
Asa wrote:
>
> Hi all, I am finding that after using an expression like "choice = getc(0)"
> the next time getc(0) is called, it doesn't wait for the keystroke. Something
>
> left in the keyboard buffer from the first call?
>
> I did search the docs before posting, but couldn't find an answer.
>
> Thanks.
Hi
Run this after your getc
while get_key() != -1 do
end while
end procedure
or
while getc() != -1 do
end while
end procedure
Chris
