GetNextEvent

[Steve Oney]

Could someone please point me to a set of references that would help write
an event manger for a unix system. I am looking for a system like the
Macintosh Tollbox Event Manager. I need to write a event driven process
and I'm looking for different methods. I would like to write code that 
could be ported to several machines. I have not seen any information in the
books I have looked at, if there are books or mag. articles on this subject
I would appreciate the help. Thanks