The xlcall32.h header file has a long list of function codes <xlfn starting
from xlcBeep (0 | xlcommand). I understand these are the 1st parameters in a
call to Excel4/4v or Excel 12/12v, but I cannot find any examples or
documentation explaining the variation for the remaining parameters for each
of these commands.

I know the general format s/b Excel4(<xlfn, result, count, <args), but I
would think each command has certain required and optional parms. Where can
I find this information?

thanks
Joe