Subject: Re: bug#22404: 25.1.50; Forcing `window-scroll-functions` to run.

From: Eli Zaretskii <[email-masked]>
Date: Wed, 20 Jan 2016 15:34:41 +0200

> Date:  Tue, 19 Jan 2016 12:35:38 -0800
> From:  Keith David Bershatsky <[email-masked]>
> Cc:  [email-masked]
> 
> Explicitly calling `set-window-start` doesn't appear to trigger the WSF based on the following test -- e.g., moving around the window without scrolling doesn't yield any messages.
> 
> (setq scroll-conservatively 101)
> 
> (defvar pch-test-var nil)
> 
> (defun pch-fn ()
>   (set-window-start (selected-window) (window-start (selected-window)) 'noforce))

Sorry, I was mistaken: you need to call set-window-start with its 3rd
argument omitted or nil.  Does that solve your problem?