Re: TTY child frames and mouse_position_hook

[Gerd Möllmann]

Po Lu <luangruo@yahoo.com> writes:

> Where does the tty child frame implementation account for the absolute
> positions of child frames when processing mouse input, as from
> xterm-mouse-mode?  Needless to say, mouse input is not properly
> translated on MS-DOS, and I would prefer to reuse code that already
> exists, provided that I can locate it.
>
> Thanks in advance.

I think this is best seen in the following commits to xt-mouse.el.

e2323775246 | * Fix mouse-position for xterm-mouse-mode
414de92a562 | * Initial child frames based on master

In short, it's

 - Determine frame under (X, y) from by the terminal
 - Give Emacs (frame, x', y') where x' and y' are relative to the frame