Re: Cancel minibuffer when clicking another window

On Wed, 04 Mar 2026 12:47:15 +0100 Joost Kremers <[email protected]> wrote:

> Hi list,
>
> When Emacs reads input in the minibuffer (i.e., with `read-from-minibuffer`
> or `completing-read`, etc.) and you click some other window with the mouse,
> that window is selected, but the minibuffer input isn't cancelled.
>
> Is there a way to automatically cancel the minibuffer input when clicking
> another window?

Maybe this does what you want:

(defun my-exit-minibuffer ()
  (let ((miniwin (active-minibuffer-window)))
    (when (and miniwin (not (eq miniwin (selected-window)))
	       (mouse-event-p last-command-event)
      (exit-minibuffer)))))

(add-hook 'post-command-hook #'my-exit-minibuffer)

Steve Berman