Article 2322 of comp.terminals:
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From: M.T.Shipley@bradford.ac.uk (MT SHIPLEY)
Subject: Re: Unknown VT220 Escape Sequences
Message-ID: <1994May3.083827.1469@bradford.ac.uk>
Lines: 57
Organization: University of Bradford, UK
X-Newsreader: TIN [version 1.1 PL9]
References: <2pqn0d$njb@urmel.informatik.rwth-aachen.de>
Date: Tue, 3 May 1994 08:38:27 GMT

Thomas Gellekum (thomas@ghpc8.ihf.rwth-aachen.de) wrote:
: Moin moin,

: The TPU-editor on VMS uses some escape sequences for VT220 that aren't
: explained in the programmers manual. They tend to garble output in my
: VT220 Emulator here. Does anyone know what they are supposed to do?

: CSI 1;2'z
: CSI 0'z

    DECELR - DEC Enable Locator Reports

    CSI Ps ; Pu ' z

    Ps
      0 locator disabled (default)
      1 locator reports enabled
      2 one shot

    Pu --- specifies coordinate units
      0 default to character cells
      1 device physical pixels
      2 character cells

: CSI 1;3'{

    DECSLE - Select Locator Events

    CSI P...P ' {

    P...P one or more selective parameters:

      0 Respond only to explicit host requests
      1 Report button down transitions
      2 Do not report button down transitions
      3 Report button up transitions
      4 Do not report button up transitions
      

: Is there an authoritative list of possible responses to a primary DA
: request? The manual gives just examples, not a complete list.

: Please reply by e-mail, I don't normally read this group. I'll post a
: summary if there's interest.


Opps, reply for news, so you better read this :-)

: Thanks.

: tg

Martin

: --
: Thomas Gellekum, thomas@ghpc8.ihf.rwth-aachen.de



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There are two distinct ways to issue a reset command to a VT220 terminal.

Mnemonic Command              Sequence            Explanation
-------- -------------------  ------------------  -----------------------------

DECSTR   Soft terminal reset  Escape [ ! p        sets terminal to power-up
                                                  default states

RIS      Hard terminal reset  Escape c            replaces all terminal set-up
                                                  parameters with NVR values or
                                                  power-up default values if
                                                  NVR values do not exist.

("VT220 Programmer Pocket Guide" EK-VT220-HR-001, page 33)

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