"ragi" <ra**@agora.pl> wrote in message news:dg**********@inews.gazeta.pl...
How can I check from service if user is logged to system?
Try asking in a newsgroup that knows what you're talking about. The c++
language has no concept of being "logged to system", or of a "service". If
you're talking about Windows, try a microsoft newsgroup, on the
msnews.microsoft.com server.
-Howard