Re: Detect window switches?

[Dan Espen]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Joost Kremers <joostkremers@yahoo.com>
>> Date: 26 Sep 2013 16:54:34 GMT
>> 
>> What I'd like to know is if it's possible to detect when a window
>> goes from being selected to being not selected and vice versa. Or,
>> alternatively, when a buffer goes from being current to not current
>> and vice versa.
>
> There's always post-command-hook, where you can test whether the
> current-buffer is one of yours, and act accordingly.

My mode line changes color when a buffer changes from active/inactive.
Isn't that what the OP is looking for?

-- 
Dan Espen