Re: select-frame-set-input-focus fails to raise the frame

[Robert Weiner <rsw@gnu.org>]

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On Wed, Dec 13, 2017 at 2:30 PM, martin rudalics <rudalics@gmx.at> wrote:

> > Can you explain what the problem is and why you think it is unsolvable?
>
> On most systems I know this one ...
>
>   (let ((depress-frame (selected-frame))
>         (release-frame (make-frame)))
>     (select-frame-set-input-focus depress-frame)
>     ;; On MacOS, depress-frame is never raised to the top
>     ;; of the frame stack and never is given input focus
>     ;; after release-frame is created.
>     (sit-for 4)
>     (select-frame-set-input-focus release-frame)))
>
> ... happens because a new frame is always raised and gets input focus
> unless certain precautions are taken.


​Yes, that seems to be the case on MacOS as well.  But why
even if I add a (sit-for 4) before (select-frame-set-input-focus
depress-frame)
is that frame not raised and given focus?​
​​

> The following works here on
> Windows:
>
> (defun test ()
>   (let ((depress-frame (selected-frame))
>         (release-frame (make-frame '((no-focus-on-map . t)))))
>     (select-frame-set-input-focus depress-frame)
>     ;; On MacOS, depress-frame is never raised to the top
>     ;; of the frame stack and never is given input focus
>     ;; after release-frame is created.
>     (sit-for 4)
>     (select-frame-set-input-focus release-frame)))
>

​Yes, that works find on MacOS as well, so that will have to be the
solution.
Thanks much.​

Bob

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