Re: Touchscreen support

[Eli Zaretskii]

> From: Po Lu <luangruo@yahoo.com>
> Cc: larsi@gnus.org,  monnier@iro.umontreal.ca,  emacs-devel@gnu.org
> Date: Sun, 19 Dec 2021 19:42:31 +0800
> 
> > I'm not opposed to having parts of this in Lisp, but I do want to see
> > the events placed in the normal Emacs input queue, which probably
> > means that Lisp will be called from C.  Not sure if such design will
> > make sense in practice, though.  But OTOH, having events coming in
> > from another source, not through the input queue read by
> > read_socket_hook, is a complication I'd very much prefer to avoid (if
> > it's even feasible).
> 
> We could have an API that allows Lisp to push some kinds of input events
> to that queue, which is then read by the various read_socket_hooks.

How would the low-level events, from which you want to construct
higher-level events, get to Lisp in the first place?