X-Authentication-Warning: delorie.com: mail set sender to djgpp-bounces using -f Date: Tue, 20 Jul 2004 21:45:07 +0200 From: "Eli Zaretskii" Sender: halo1 AT zahav DOT net DOT il To: djgpp AT delorie DOT com Message-Id: <1659-Tue20Jul2004214506+0300-eliz@gnu.org> X-Mailer: emacs 21.3.50 (via feedmail 8 I) and Blat ver 1.8.9 In-reply-to: <2m40mjFhp3nlU1@uni-berlin.de> (message from Martin Ambuhl on Tue, 20 Jul 2004 03:42:09 -0400) Subject: Re: Function kbhit()? References: <2m3hjoFibqajU1 AT uni-berlin DOT de> <7494-Tue20Jul2004073651+0300-eliz AT gnu DOT org> <2m3odtFhufc2U1 AT uni-berlin DOT de> <2m40mjFhp3nlU1 AT uni-berlin DOT de> Reply-To: djgpp AT delorie DOT com Errors-To: nobody AT delorie DOT com X-Mailing-List: djgpp AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk > From: Martin Ambuhl > Newsgroups: comp.os.msdos.djgpp > Date: Tue, 20 Jul 2004 03:42:09 -0400 > > *Maybe* it's because when !kbhit(), you don't call getch() but you do > store a value into *key. I think this does not happen because if `kbhit' returns zero, there's no keypress in the BIOS queue, and `bioskey' then gets stuck until a key is pressed, at which time it returns that key. So I think what you describe could only happen in the (extremely rare) case where a key is pressed between the time the BIOS call in `kbhit' returns and the time `bioskey' is called.