Expose Events?

[Andrew Shafer <shafer realmsys com>]

Is there a good reference that explains what generates an expose event?
(a reference on any and all events would be nice)

I have multiple top level windows and I want them all to raise() when
any one of them is clicked.  I have a callback that raises all of them
when any expose event is generated.  It works fine, but I notice there
are lots of expose events. . . Does my method seem reasonable?  Anyone
have an 'optimal' solution?

Thanks