Questions tagged [events]
35 questions
32
votes
4 answers
How can I simulate an arbitary key event from Elisp?
Is it possible to simulate an arbitrary key event from elisp? I am aware of ways that I can find the binding for a given key, and then call that command interactively, but what if that key event is not bound to a command?
As one example, what if I…
nispio
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9
votes
2 answers
Translating strings to keypresses
Given a string in elisp, I'd like to simulate emacs receiving whatever keypresses are necessary to re-create that string. So given the string "Hello" emacs would act exactly the same as if I had pressed Shift+H,e,l,l,o. Note that this is not always…
Joseph Garvin
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7
votes
2 answers
Looking for something like a `first-keypress-in-a-while-hook`
Suppose that I have an Emacs session running, and that I step away from my computer for, say, 20 minutes. Upon returning to my Emacs session, at some point I will press some key while the Emacs window has the focus. This would be an example of the…
kjo
- 3,145
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6
votes
3 answers
How to detect if `read-event` or `y-or-n-p` is running?
In haskell-doc-mode we have a timer that shows useful tips in minibuffer when cursor is idle for a moment. In other part of Haskell Mode there is code asking questions using y-or-n-p or read-event. The problem is haskell-doc-mode does not know about…
Gracjan Polak
- 1,082
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5
votes
1 answer
Send input to multiple buffers simultaneously
Is there something like multiple-cursors, but that would send input into multiple buffers at once?
Use case: I want to send the same shell commands to a number of virtual machines and see the output in the real time. Maybe multi-term can do…
wvxvw
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4
votes
1 answer
Isearch + Dired fast navigation
After seeing this post and one of its comments, I am trying to implement the following convenient search pattern in dired:
Press C-s to start isearch
Type the substring I am looking for
Possibly jump between all matching results by typing C-s…
unvarnished
- 129
- 5
4
votes
1 answer
Process unread-command-events and redisplay
(defun pretend (keys)
(dolist (e (reverse (listify-key-sequence (kbd keys))))
(push e unread-command-events)
;; (mystery-function)
(redisplay t)
(sleep-for 0.1)))
(pretend "M-x my-function-")
This function is intended to take key…
Sean Allred
- 6,861
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4
votes
1 answer
How can I convert a C-key code into a 'normal' key code?
Background
With jumping packages like Ace and Avy, you can start a function, provide a query char, and then jump to somewhere based on further input. (Lately I've preferred Avy, but that's irrelevant here.)
I have had both bound to C-' C-; (with…
Sean Allred
- 6,861
- 16
- 85
3
votes
2 answers
input event
I don't know what I did caused Emacs to emit such a message:
is undefined
Screenshot:
How did I issue this input event?
In other words, what does this stand for?
Now I know how to reproduce it:
(emacs -Q, of…
shynur
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3
votes
1 answer
Is there a reliable way read an existing event, if any, and remove it from the queue with zero delay?
An answer to another question suggests that supplying a timeout of 0.0 to read-event (as the
optional SECONDS parameter) will always return nil immediately, and, if I'm reading the code in
Emacs' keyboard.c correctly, even a (very) very small…
user13929
3
votes
1 answer
Making read-char input robust?
I need to read a char at a time to interactively build a filter string while I show the results in a regular buffer. And what I've written works, except when a cursor key is pressed - then bang, I get a "non-character input event message" and my…
ump
- 61
- 3
2
votes
0 answers
Inconsistency between read-key and read-key-sequence-vector w.r.t. conditional application of local-function-key-map translations
While working with read-key-sequence-vector and read-key, I found that the former applies the local-function-key-map translations in a conditional manner but the latter does not. I am using Emacs 28.1 on a macOS system.
The function…
Susam Pal
- 161
- 5
2
votes
2 answers
How to make the mouse only change point only when clicked in the same window?
I want to change the mouse behaviour in Emacs:
When I click between windows (i.e. from one window into another)), I only want to select the new window and not change point. This is the behaviour globally enabled through:
(progn
(global-set-key…
halloleo
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2
votes
1 answer
How to use unread-command-events variable?
I want to generate some input from my command programmatically. I have tried using unread-command-events variable for that, see:
(defun unread_test ()
"Repeat input after toggling input method"
(interactive)
(let ((kseq (listify-key-sequence…
Srv19
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2
votes
1 answer
How to get the string representation of a keymap event?
I'd like to get the string representation of a keymap event. For instance 19 should be printed as C-s, 1 as C-a etc...
I could make my own function to do that but since describe-keyis capable of printing the string representation of an event there…
syl20bnr
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