Re: Physical keyboard events

[Cecilio Pardo]

On 05/11/2024 13:21, Po Lu wrote:
> Cecilio Pardo <cpardo@imayhem.com> writes:
>
> > We are implementing the ability to bind an action to the press of the
> > key, regardless of its meaning as a modifier.  This way, we can take
> > advantage of double keys (Shift_L, Shift_R) and give more options to
> > the user.
>
> It's not a matter of giving users more choice or finer control, but of
> correctness.  How will you handle the case where the key labeled Caps
> Lock is, in all functional respects, Ctrl, and that labeled Ctrl serves
> another purpose that renders it simply unavailable to Emacs?

We would respond to XK_Caps_Lock by sending an event with the symbol 
'capslock, and to Control with lctrl and rctrl. If the control key is 
unavailable beacuse it serves another purpose, then user should not bind 
it to anything.

I don't think this is incorrect in any way. We are giving the user the 
ability to detect this keypresses.  It's up to the user to decide if she 
wants to do it or not.

> But let me pose a different question: why do you need to distinguish
> between left and right modifier keys?

So I can bind a different command to each one of them.