Glynn Clements <glynn(a)sensei.co.uk> writes:
Using the WM_COMMAND property for session management is deprecated
according to the X11R6.3 copy of the ICCCM (it is described in
Appendix C: Obsolete Session Manager Conventions). The `proper'
session management protocol is described in the `SMlib' document.
I didn't know about this one. Thanks for the hint.