Re: Emacs's set-frame-size can not work well with gnome-shell?

[Dmitry Gutov]

On 16.01.2020 12:44, martin rudalics wrote:
> Dragging the frame by dragging the border shouldn't have happened in the
> first place.  Please try again with:
>
>
> (custom-set-faces
>   '(internal-border ((t (:background "red")))))
>
> (defun open-test (buffer)
>    (display-buffer-in-child-frame
>     buffer '((child-frame-parameters
>               . ((width . 40)
>                  (height . 10)
>                  (top . 50)
>                  (left . 50)
>          (minibuffer . nil)
>          (border-width . 0)
>          (internal-border-width . 10)
>          (drag-internal-border . t)
>          (drag-with-mode-line . t)
>                  )))))
>
> (setq-local test-buffer (get-buffer-create "*test child-frame*"))
> (setq-local test-frame (window-frame (open-test test-buffer)))

The behavior seems to be the same (dragging, not resizing; including 
dragging by the borders).

BTW, somewhat curiously the red border only shows up after I click on 
the child frame.