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bug#35059: window-setup-hook not working with the new frame parameters
From: |
Eli Zaretskii |
Subject: |
bug#35059: window-setup-hook not working with the new frame parameters |
Date: |
Sun, 31 Mar 2019 11:20:35 +0300 |
User-agent: |
K-9 Mail for Android |
On March 31, 2019 8:57:18 AM GMT+03:00, Michael Wu <john.michael.wu@gmail.com>
wrote:
> See this StackOverflow thread:
> https://emacs.stackexchange.com/questions/48645/if-start-with-maximized-frame-why-do-windows-open-top-bottom-not-side-by-side
>
> as well as Stefan's answer, and comments on that answer. Essentially,
> I
> do not believe window-setup-hook is properly running after all frame
> parameters have been set, as is suggested in the documentation here:
>
> https://www.gnu.org/software/emacs/manual/html_node/elisp/Startup-Summary.html
There's nothing wrong with window-setup-hook, AFAICT, it indeed runs after all
the parameters of the frame have been set according to your customizations.
The problem is in your apparent assumption that frame maximization happens
immediately after you put the fullscreen parameter into frame-parametets. But
actually, frame maximization is performed through interaction with the
window-manager, which generally happens asynchronously and takes some short,
but non-zero time.
Add to your hook a call to 'message' that displays the width and height of the
selected window, and you will see why you get windows split vertically.
The conclusion is that if you want to see windows split like you expected, you
need to insert a wait into your emacs. Or just split horizontally by an
explicit command.