How to broadcast message to entire workgroup?

[Steve Snyder]

I want to broadcast a message, or series of messages, to the entire
workgroup supported by Samba v2.0.x on a Linux-based server.  The idea here
is to notify all users that the power to the server has failed and shutdown
is imminent.

I've searched through the Samba archives and found several messages asking
this same question, but no responses.  Now it's my turn.  So...  can Samba
broadcast a message to all the machines currently logged into it, and if
so, how is it done?

Thank you.


*** Steve Snyder ***