RE: completing-read (and M-x) with pop-up-frames non-nil changesframefocus

[Drew Adams]

        On Windows, you have to manually select original the frame
        (e.g. click the title bar).

        In any case, you should not need to move the mouse or click
        the original
        frame. *Completions* should only be displayed, not
        selected, whether or not it is in another frame.

    When focus follows the mouse, it is difficult to avoid selecting it
    if it shows up under the mouse.

I didn't have focus-follows-mouse turned on.

If it were on, and if the new frame did not happen to show up under the
mouse, it would not be selected, right?

    When the window manager is using click-to-focus, it would be good if
    this frame appeared without being selected.

Yes. That's the problem.

    Emacs once tried to
    implement this, around 10 years ago, but I think it did not work
    right, so it was taken out.

I guess you're saying that when a frame is created it is always given the
focus. That's too bad.

Stefan seemed to have a fix for this, at least in this case, but it needs to
be tested on Windows.