Re: WM_CLASS purpose?

Vladimir A. Pavlov pv4 at bk.ru
Tue Oct 30 11:14:49 PDT 2012


> > > >    For example, let's suppose I have a window manager
> > > >    somebox that has taskbar, dock, menus for starting
> > > >    applications/switching workspaces and configuration dialogs.
> > > >    What should be res_name/res_class for each of them?
> > > 
> > > An X client should have a single name and class. You shouldn't use
> > > different values for different windows within a single client
> > > (however, it's possible for a single process to contain multiple
> > > clients by calling XtOpenApplication() multiple times; each "client"
> > > has a separate X connection and XtAppContext).
> > 
> > So, if _you_ write a window manager "somebox" what values would
> > you use for res_name and res_class in the above example?
> 
> The default class would be "SomeBox" while the default name would be
> the base name (everything after the last "/") of argv[0], which would
> typically be "somebox". These could be overridden by the -class and
> -name switches respectively.

Do I correctly understand that all the windows mentioned above
(taskbar, dock, menus, dialogs) would have the same class
somebox/SomeBox so it wouldn't be possible to use WM_CLASS to
distinguish between e.g. taskbar and menu?


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