Emacs, X And Modifier Keys

Emacs, X And Modifier Keys

[T.V Raman]

When running under X, I presently dont know of any way to listen for
just the ctrl key being pressed by itself --- can this be made
possible  going forward?  

Similar questions for the other modifier keys --- would be nice to be
able to bind Emacs actions to those keys when they are hit by
themselves 
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Re: Emacs, X And Modifier Keys

[Xue Fuqiao]

On Sat, Nov 14, 2015 at 6:15 AM, T.V Raman <raman@google.com> wrote:
>
> When running under X, I presently dont know of any way to listen for
> just the ctrl key being pressed by itself --- can this be made
> possible  going forward?
>
> Similar questions for the other modifier keys --- would be nice to be
> able to bind Emacs actions to those keys when they are hit by
> themselves

That would be a great feature to add.  I've been waiting this kind of
feature for years.

Re: Emacs, X And Modifier Keys

[Tom]

T.V Raman <raman <at> google.com> writes:

> 
> When running under X, I presently dont know of any way to listen for
> just the ctrl key being pressed by itself --- can this be made
> possible  going forward?

It should already be possible if you don't mind using external
tools.

Using a combination of xdotool and xmodmap you should be able to
make control send a different keycode when emacs is active, so
you can bind a command to it in emacs.

I haven't tried it under X, but that's how I utilize my right
control key (which I wouldn't use otherwise in emacs) on Windows
using autohotkey.