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From: MCGUIRE@GRIN2.BITNET
Newsgroups: comp.os.vms
Subject: RE: Disabling Command Line Recall
Message-ID: <8709120411.AA14250@ucbvax.Berkeley.EDU>
Date: Fri, 11-Sep-87 18:32:00 EDT
Article-I.D.: ucbvax.8709120411.AA14250
Posted: Fri Sep 11 18:32:00 1987
Date-Received: Sun, 13-Sep-87 01:48:15 EDT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
Lines: 20

> Date:         Thu, 10 Sep 87 05:28:05 PDT
> From:         KELLY%FSU.MFENET@NMFECC.ARPA
> Subject:      Disabling Command Line Recall
>
> I'm trying to find a way to disable the Command Line Recall mechanism
> implemented by the VAX operating system. I'm trying to develop a
> spreadsheet type input facility in which a user may use the cursor keys to
> position himself on the screen. Currently under VAX/VMS, the UP and DOWN
> cursor keys invoke the Command Line Recall procedures provided by the
> op-sys. Can anyone out there offer a solution?????

See page 8-3 of the I/O User's manual, volume 1.  The SET
TERMINAL/NOLINE_EDIT command disables most terminal driver editing
functions, but then you have to be certain to save the original
characteristics and restore them when you're done.  A better approach is to
perform your I/O with $QIO and use the TRM$M_TM_NORECALL modifier to
disable the recall mechanism, or other modifiers as necessary to disable
interfering features of the driver. Check out section 8.4.1, the Read
function.
---- Ed McGuire, Systems Coordinator, Grinnell College, MCGUIRE@GRIN2.BITNET