Re: master a1a435b3f6: Respect test function when performing local drag-and-drop

[Eli Zaretskii]

> From: Po Lu <luangruo@yahoo.com>
> Cc: emacs-devel@gnu.org
> Date: Tue, 14 Jun 2022 09:04:51 +0800
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > What does it mean "to determine return"?  Did you mean "return value"?
> > or "what to return"?
> 
> Yes, sorry.
> 
> > This alludes to `x-begin-drag', but it isn't clear how the variable
> > itself is related to that function.
> 
> It determines the return value of `x-begin-drag' when the drop happens
> on a frame instead of a window belonging to another program.

My point was that before the doc string talks about x-begin-drag, it
should somehow tell where does this variable come into play with that
function.