Re: Detect window switches?

[Dan Espen]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Dan Espen <despen@verizon.net>
>> Date: Thu, 26 Sep 2013 14:22:15 -0400
>> 
>> My mode line changes color when a buffer changes from active/inactive.
>> Isn't that what the OP is looking for?
>
> That's done on the C level, and Lisp programs cannot hook into this.

Hmm, starting to sound like a bug.
Here's an event that Emacs acts on but doesn't make the
event visible to ELisp.

-- 
Dan Espen