Thanks for the help.
I found another good example of using the CLN:
http://zone.ni.com/devzone/cda/epd/p/id/3720 I didn't know that we could
call these kernel functions directly.
In addition I have been playing with the dll import tool and that
seems to be a good way of learning how to match prototypes. By creating
different functions in a h file you can see how LabVIEW creates CLNs for
different datatypes.
Also, it may have been mentioned but to get an array (if you know the
max size of the array beforehand) into a struct, i.e. a string you can
string to bytesarray->array to cluster but of course you'd have to
set the size of the array to cluster beforehand.
In addition, if you need a typedef for such a cluster instead of
manually adding hundreds of numeric constants you could probably use
something like this vi to create a constant that you can embed into your
typedef.
