## Install: Put this file into load-path'ed directory, and byte compile it if desired. And put the following expression into your ~/.emacs. (require 'langtool-popup) (setq langtool-autoshow-message-function #'langtool-popup-autoshow) Or use Melpa (https://melpa.org/) ## Usage: This idea originally come from: ref: https://laclefyoshi.hatenablog.com/entry/20150912/langtool_popup