Subject: 29.0.91; Dialog box not displayed upon closing frame
From: Po Lu <[email-masked]>
To: [email-masked]
Date: Tue, 23 May 2023 13:12:38 +0800
List-Id: <debbugs-submit.debbugs.gnu.org>

Start Emacs, then set confirm-kill-emacs to t.
Close the last frame on the only terminal by clicking the close button
on the WM frame window.  Emacs will ask:

  Really exit Emacs? (y or n)

in the echo area, instead of displaying a popup dialog as in Emacs 28.
This makes it difficult to close Emacs using only the mouse.