From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Vinicius Jose Latorre <viniciusjl@ig.com.br>
Cc: Andreas Schwab <schwab@linux-m68k.org>,
"GNU Emacs \(devel\)" <emacs-devel@gnu.org>
Subject: Re: How to know if a key is pressed without getting it?
Date: Mon, 27 Sep 2010 01:36:36 +0200 [thread overview]
Message-ID: <jwvr5ggxeqd.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <4C9FD58A.4070205@ig.com.br> (Vinicius Jose Latorre's message of "Sun, 26 Sep 2010 20:21:46 -0300")
> I defined the following function using input-pending-p:
> (defun test-input ()
> (read-char "char: ")
> (while (input-pending-p)
> (insert (format "{%S}" unread-command-events)))
> (message "{%S} END" last-input-char))
> Execute the function above via: M-: (test-input) RET
> Then hold space key.
> The only message returned is "{32} END" followed by all spaces that
> I pressed (except the first one).
This probably depends on how quickly the read-char returns and the
input-pending-p gets run, but it seems reasonable to expect it to be run
in (much) less time than your repeat rate, so when the input-pending-p
is run, there is indeed no input pending yet.
Stefan
next prev parent reply other threads:[~2010-09-26 23:36 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-26 15:02 How to know if a key is pressed without getting it? Vinicius Jose Latorre
2010-09-26 15:53 ` Óscar Fuentes
2010-09-26 22:15 ` Stefan Monnier
2010-09-26 22:41 ` Vinicius Jose Latorre
2010-09-26 23:11 ` Stefan Monnier
2010-09-26 23:25 ` Lennart Borgman
2010-09-27 1:08 ` Vinicius Jose Latorre
2010-09-27 20:30 ` Stefan Monnier
2010-09-27 1:20 ` Ted Zlatanov
2010-09-26 22:46 ` Andreas Schwab
2010-09-26 23:21 ` Vinicius Jose Latorre
2010-09-26 23:36 ` Stefan Monnier [this message]
2010-09-27 0:29 ` Vinicius Jose Latorre
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=jwvr5ggxeqd.fsf-monnier+emacs@gnu.org \
--to=monnier@iro.umontreal.ca \
--cc=emacs-devel@gnu.org \
--cc=schwab@linux-m68k.org \
--cc=viniciusjl@ig.com.br \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/emacs.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).