Re: Add function to make frame topmost?

[Lennart Borgman]

On Sat, May 1, 2010 at 8:03 PM, David De La Harpe Golden
<address@hidden> wrote:
> Stefan Monnier wrote:
>>
>> SM> An alternative is to use the poor-man's OO system already in place and
>> SM> just add a set_frame_topmost_hook to the terminal object.
>>
>> Check src/termhooks.h where "struct terminal" is defined.
>>
>>
>>        Stefan "who though it would be obvious"
>>
>
> 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.


Thanks. Yes, it looks easy to add the w32 part. (And there is no BOTTOMMOST.)

I think this is useful for reminders/appointments, log tail buffers etc.