I am using the meta_window_get_wm_class
and meta_window_get_wm_class_instance
calls via approximately global.get_window_actors().map(w => w.meta_window['get_wm_class']?.()
and the equivalent for …_instance
.
The documentation for these methods here and here refer to the X WM_CLASS property. Similar information is available from the GNOME Shell source (which Discourse won’t let me link, but at gnome-shell 481657f
src/shell-window-tracker.c#L163-L220). In these the documentation refers to name
and instance
The X documentation does not have any reference to instance
(the WM_CLASS property struct is defined as struct { char *res_name; char *res_class; }
), so I would like to understand what the actual relationship is.
It looks to me like the wm_class_instance
is equivalent to X’s res_name
and XClassHint.wm_class
is equivalent to X’s XClassHint.res_class
. Is this correct?