Re: Regarding on-key-up event

[Po Lu]

I think input methods pose this basic semantic problem on all systems.  They 
definitely do on GTK, in much the same way as they do on X.

On February 4, 2023 8:48:42 AM GMT+08:00, Ag Ibragimov 
<agzam.ibragimov@gmail.com> wrote:
>Po Lu <Luangruo@yahoo.com> writes:
>
>> This nice behavior may be guaranteed by a keyboard itself, but not by input 
>> methods, where it is actually impossible to match up an input method's 
>> committed key events with a corresponding key release event.
>>
>> Of course, since the input method is not operating synchronously wrt the X 
>> connection, there is not even the guarantee that the key release arrives 
>> after the key press, since the latter are not filtered through it.  And for 
>> good reason; imagine that the input method commits a string, abcdef, and 
>> Emacs generates one key event for each character.
>>
>> Which key release events should Emacs then deliver?
>
>Aha! Thank you. All right, this completely makes sense. What about when Emacs 
>doesn't connect to X Server? Cocoa, pgkt, etc. Or is it vital to keep the 
>model for backward compatibility and consistency?
>
>I can't be the first person asking this question: "why can't I bind a command 
>to a key-release event?", right?
>
>