dtfindn - find nth field in dictionary
struct fd *dtfindn (fp, n)
Dtfindn looks up the nth field in an open RMS dictionary file. The dictionary fields are numbered starting at 1.
Fp is the value returned from dtdict(C-3) or dtopen(C-3).
The value returned is a pointer to a structure defined in the include file <cbase/dirio.h>.
dtdict(C-3), dtopen(C-3), dtfind(C-3)
RMS Programming Guide
A value of NULL is returned if the field is not in the RMS dictionary file or if fp is not an opened RMS dictionary file.
The returned value points to static data whose contents are overwritten with every call.