RE: New keybinding suggestion: C-x _ for `shrink-window'

[Drew Adams]

>     However, I suggest that showing help should quit window
>     editing. The reason
>     is that you are in a `read-event' loop, and that prevents any normal
>     interactions with the help.
>
> It is useful to present the help without exiting the special command
> loop if the presence of the help does not interfere with continuing to
> use the special command loop to resize the windows.

I explained that in the case of non-nil `pop-up-frames', it does interfere -
or, rather, continuing to read events interferes with being able to use the
help display (depending on the size of its frame).