[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: C-h w undo RET says "undo". Where is it?

From: Marcin Borkowski
Subject: Re: C-h w undo RET says "undo". Where is it?
Date: Sun, 25 Jul 2021 09:21:40 +0200
User-agent: mu4e 1.1.0; emacs 28.0.50

On 2021-07-23, at 07:44, Yuri Khan <> wrote:

> On Fri, 23 Jul 2021 at 12:11, Marcin Borkowski <> wrote:
>> Emacs tells me that `undo' is bound to several keys.  Personally, I use
>> C-/ almost exlusively, but C-h w undo RET says that it's also bound to
>> <undo>.  Where is that key?  More precisely, can anyone show me an
>> example of a keyboard (preferably a modern one, not a historical
>> curiosity) possessing such a key?
> [Legend has it][DT] that Undo was a key on early keyboards, starting
> with Xerox Star, later Xerox Docutech, Sun Type 4/5/6/7.
> [DT]:
> Modern mass-produced keyboards do not have an Undo key.
> If you are building a custom keyboard based on TMK or [QMK] firmware,
> you can turn any key into Undo by assigning the KC_UNDO key code to
> it. Be aware that some modern software will ignore it even if they do
> have a notion of undo and handle Ctrl+Z.
> [QMK]:

Thanks.  I _definitely_ don't want to build my own keyboard, it would be
a complete waste of time and materials, given that I have no skills for
that.  Just wanted to know something about that mythical "undo" key.


Marcin Borkowski

reply via email to

[Prev in Thread] Current Thread [Next in Thread]