dtopen - open RMS dictionary file for I/O
#include
DICT *dtopen (filename, mode)
char *filename;
char *mode;
Dtopen opens the RMS dictionary file for the RMSfile filename for
reading (mode is "r"). Filename points to a string of ASCII
characters representing the logical name or a pathname of the
RMSfile, terminated by a null character. See cdict(C-1)
for
creating data dictionaries.
The pointer returned should be saved and used on subsequent calls
to dtaccess(C-3), dtefld(C-3),
dtefldn(C-3), dtfind(C-3),
dtfindn(C-3), dtfindi(C-3),
dtfindk(C-3), and dtclose(C-3).
cdict(C-1), dtfind(C-3),
dtfindn(C-3), dtfindi(C-3),
dtdict(C-3),
dtclose(C-3), dtaccess(C- 3), dtefld(C-3),
dtefldn(C-3),
dtfindk(C-3)
Chapter 4, RMS Programming Guide
DIAGNOSTICS
A value of NULL is returned if the dictionary cannot be opened.