>>Hope this helps. Thanks to George Tasker.
>
>
>How do you guys ever find these things out?
>Peter

Peter,

In my case I'm a MSDN subscriber. This means that I have access to the Win32.hlp file, which is probably the most comprehensive single source of information on the API. Additionally, I get MSDN news, plus various email articles from MS. This wealth of material often provides the information I'm looking for.