[mcclim-devel] [PATCH] cooperate with window manager

Juliusz Chroboczek Juliusz.Chroboczek at pps.jussieu.fr
Mon Apr 20 14:18:00 UTC 2009

Hi Christophe,

Could you please whitelist the addresses

  jch at pps.jussieu.fr
  Juliusz.Chroboczek at pps.jussieu.fr

for the mcclim list?

> This WM_CLASS is the same thing as is looked up in the Xresources
> database, isn't it?


> Does it have any other effect?  Do window managers group windows by
> either of these names?

In principle, no.  If you run two Emacs instances, both have the same
class name, and you don't expect the window manager to group them.

>> +      (setf (xlib:wm-protocols window) `(:wm_delete_window))
>> +      (xlib:change-property window
>> +                            :WM_CLIENT_LEADER (list (xlib:window-id window))
>> +                            :WINDOW 32))))

> Here, we make each window its own leader, right?


> What effect would this have on multiple windows opened by a single
> client (such as those opened with open-window-stream)?

The window manager would treat them as belonging to distinct
applications.  In particular, if a window manager that only makes
a single icon for an application will create multiple icons.

> Would it be better to have those child windows have their
> WM_CLIENT_LEADER be the parent application frame?

It definitely would.  My patch does the strict minimum to ensure that
every app has at least one icon in the window manager that I use.



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