% @(#)lock_keyw.hlq	17.1.1.1 (ESO-IPG) 01/25/02 17:43:43
%++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
%.COPYRIGHT  (c)  1990 European Southern Observatory
%.IDENT      lock_keyw.hlq
%.AUTHOR     KB, IPG/ESO
%.KEYWORDS   MIDAS, help files, LOCK/KEYWORD
%.PURPOSE    On-line help file for the command: LOCK/KEYWORD
%.VERSION    1.0  13-FEB-1992 : Creation, KB
%----------------------------------------------------------------
\se
SECTION./KEYW
\es\co
LOCK/KEYWORD						14-FEB-1996  KB
\oc\su
LOCK/KEYWORD key_list lockno
	lock keyword(s)
\us\pu
Purpose: 
	  Lock specified keyword(s).
\up\sy
Syntax:  
          LOCK/KEYWORD key_list lockno
\ys\pa
          key_list = one or more keywords separated by a comma (no spaces!)
\ap\pa
          lockno = number (must be > 0) serving as access code if you want 
             to modify a locked keyword;
\ap\sa
See also:
          UNLOCK/KEYWORD, WRITE/KEYWORD, READ/KEYWORD, INFO/KEYWORD
\as\no
Note:  
          In order to update/write a locked keyword you have to store the
          correct lock number into keyword MONITPAR(10) first.
          As a consequence, keyword MONITPAR cannot be locked.
\\
          With INFO/KEYWORD you can test if a keyword is locked or not.
\\
          The reading of keywords is not affected by a lock.
\on\exs
Examples:
\ex
          LOCK/KEYW IN_A 191280
            Use locking number 191280 to lock keyword IN_A.
\\
            Modifying keyword IN_A can then only be done via:
\\
            MONITPAR(10) = 191280
\\
            WRITE/KEYWORD in_a kukiwu
\xe\ex
          LOCK/KEYW out_a,out_b 110682
            Lock keyword out_a and out_b with the same lock, 110682.
\xe \sxe