Nick Roberts wrote:
> I think that how to write special tooltip support is too obscure a
> topic to be worth documenting in the Emacs Lisp Manual.
I disagree. I think this could be a good idea.
It could just point to a few things that would be needed:
A minor mode: tooltip-mode gud-tooltip-mode
A function to add to tooltip-hook: tooltip-help-tips gud-tooltip-tips
It could say that tooltip-mode uses text-properties while gud-tooltip-mode
uses track-mouse etc.
I could imagine other modes like gud-tooltip-mode e.g to display
lisp variable values with edebug.
Note that the file emacs-xtra is available to document things that are
too specialized (probably a better name than "obscure") for the Elisp
(or Emacs) manual and too small to have their own manual.
The chapter should point out that it is intended for Elisp programmers.
See `(emacs-xtra)Introduction' for details.
The Elisp manual could contain an xref to the chapter, in an
appropriate place.
Sincerely,
Luc.
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