santigimeno/node-ewmh — pull request #9 by sidorares (2013-11-21 12:10:15+00:00)
Title: added _NET_SUPPORTING_WM_CHECK setter

http://standards.freedesktop.org/wm-spec/wm-spec-latest.html#idp6264080
https://github.com/dancor/wmctrl/blob/master/main.c#L492

This is the way for wm to indicate it's pid, name and class.