On Wed, Oct 11, 2017 at 9:35 PM, Robert Weiner <rsw@gnu.org> wrote:
Is there any way to deal with external window z-order layering such that one can tell within Emacs whether the topmost OS-level window at an absolute mouse position is an Emacs frame or not?
One idea is to expand frame-list-z-order with a 2nd optional argument of all-display-windows-flag which when non-nil would include all of the OS-level windows in the returned list. Maybe a new object type or frame-variant is needed for this. Then just add another function that returns the edge coordinates for such windows and we could account for them in any z-ordering computations. What do you think?