RE: Add function to make frame topmost?

["Drew Adams" <drew.adams@oracle.com>]

> > Check src/termhooks.h where "struct terminal" is defined.
> 
> I'm wasn't sure why you say terminal rather than frame, though either
> way it's a poor-man's OO system dealie.  Futzing with 
> _NET_WM_STATE_ABOVE is closely analogous to futzing with 
> _NET_WM_STATE_STICKY from within emacs, so adding it to 
> frame_parm_table makes most sense to me.
> 
> I guess there is a danger that if it is added it might be abused, but 
> FWIW, a patch that adds 'stacking-layer (and 'shaded, which I just 
> thought I'd do while I was there) frame parameters for X11 by analogy 
> with 'sticky is straightforward and attached, it might be 
> independently vaguely useful for some users?  But don't expect
> me to argue strongly for its inclusion.
> 
> Implementation of a w32 x_set_stacking_layer toggling TOPMOST
> should be straightforward (though I don't see a BOTTOMMOST, 
> so I guess they have a layer less than us).  I have found
> that there are add-ons for windows that do use TOPMOST to
> produce an "Always on top" setting very much akin to a
> typical X11 window manager:
> http://www.ghacks.net/2008/09/12/window-always-on-top-with-power-menu/
> so perhaps it's about as valid a thing to add on w32 as the x11 
> stacking-layer support is on x11.

Would enhancement request (bug) #4476 (#3464) be relevant here?

(I'm not following this discussion much.)