Re: MS Windows double buffering

[Eli Zaretskii]

> From: Po Lu <luangruo@yahoo.com>
> Cc: kbrown@cornell.edu,  emacs-devel@gnu.org
> Date: Sat, 30 Apr 2022 18:33:31 +0800
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > Then the flicker of the window parts of the frame (the tool bar, the
> > text area, the scroll bar, and the mode line) don't flicker at all,
> > but the menu bar and the title bar still do, albeit very
> > insignificantly.  Overall, the result is much better.
> 
> Thanks.  Can you try to find out what type of message is being processed
> when the call to `w32_show_back_buffer' in that piece of code is made?

It's WM_WINDOWPOSCHANGED.