bug#44961: 28.0.50; [feature/pgtk] frame-position returns incorrect information

[martin rudalics]

>> Thanks.  So if we can position and reposition our tooltips, I don't
>> understand why we can't do the same with the other two (and obviously
>> normal frames either).  Is there some special magic involved with
>> tooltips?  Is it because they are so small, have no decorations?
>
> Pgtk's Emacs' native tooltip is implemented by popup window, not toplevel 
window.
> Tooltip doesn't have to be moved by users manually, doesn't have decorations,
> and its position is important, so I created it by popup window.

I see.  So we are left with the fact that we won't be able to position
(and maybe also size) top-level frames in a foreseeable future and our
application writers must keep that in mind.

martin