dtdict - return RMSfile dictionary pointer
DICT *dtdict (fcb)
Dtdict returns a pointer to the data dictionary for an open
RMSfile, fcb. See cdict(C-1) for creating data dictionaries.
The pointer returned should be saved and used on subsequent calls
to RMS dictionary functions.
cdict(C-1), dtfind(C-3), dtfindn(C-3), dtfindi(C-3)
Chapter 4, RMS Programming Guide
A value of NULL is returned if fcb does not refer to an open
The dictionary obtained by calling dtdict must not be closed by