Is there a C++ cross platform "named event like the "CreateEvent()" in Win32?

There is no built in way in C++ to do named events. But you can use boost to do it.

You're looking for boost::condition and boost::named_condition

As you also mentioned there exists: Poco.NamedEvent

boost has a number of cross platform threading primitives like this.

look at boost:mutex

Actually, look at Cross-Platform equivalent to windows events