NAME
dtopen - open RMS dictionary file for I/OSYNOPSIS
#includeDICT *dtopen (filename, mode) char *filename; char *mode; DESCRIPTION
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).SEE ALSO
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.