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+ =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
+
+ This information is largely derived from DEC document EK-VT100-UG-003,
+ the original manual for the VT100.
+
+ Most so-called VT100 implementations (both stand-alone terminals and
+ PC emulators) actually implement more controls than are given here.
+ The minimal standard is really the slightly more advanced VT102 terminal.
+
+ ...RSS
+
+ =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
+
+Path: cs.utk.edu!gatech!usenet.ins.cwru.edu!agate!doc.ic.ac.uk!pipex!sunic
+ !trane.uninett.no!news.eunet.no!nuug!news.eunet.fi!funic!nntp.hut.fi
+ !lk-hp-14.hut.fi!pev
+From: pev@lk-hp-14.hut.fi (Petri Virekoski)
+Newsgroups: comp.terminals
+Subject: VT100 control info
+Date: 11 Sep 1993 12:43:22 GMT
+Organization: Helsinki University of Technology
+Lines: 878
+Distribution: world
+Message-ID: <26sh5a$oct@nntp.hut.fi>
+NNTP-Posting-Host: lk-hp-14.hut.fi
+
+
+OK. I finally found this on my local machine by doing a locate.
+Still haven't found any FTP site bearing this kind of information.
+I myself would need a similar file with extensions for VT200/VT220.
+Please do not address any complaints to me, since I just copied this file
+as I found it. There might be some escape sequences missing from the
+end because there was some carbage, but I don't know. Here goes...
+
+
+This file describes information needed for controlling the VT100 terminal from
+a remote computer. All of the information was derived from the VT100 user's
+manual, Programmer's Information section. Full documentation can be obtain
+from DIGITAL'S Accessory and Supplies Group.
+
+ [The notation <ESC> denotes a single ASCII Escape character, 1Bx.]
+
+
+ ANSI mode w/cursor ANSI mode w/cursor
+Cursor Key VT52 mode key mode reset key mode set
+--------------------------------------------------------------------------
+ UP <ESC>A <ESC>[A <ESC>OA
+ DOWN <ESC>B <ESC>[B <ESC>OB
+ RIGHT <ESC>C <ESC>[C <ESC>OC
+ LEFT <ESC>D <ESC>[D <ESC>OD
+
+
+*******************************
+* Special Graphics Characters *
+*******************************
+
+
+ If the Special Graphics set is selected, the graphics for ASCII codes
+0137 through 0176 will be replaced according to the following table (see the
+SCS control sequence).
+
+
+Octal ASCII Special Octal ASCII Special
+Code graphic graphic code graphic graphic
+-------------------------------------------------------------------------------
+0137 _ Blank 0157 o Horiz Line - scan 1
+0140 \ Diamond 0160 p Horiz Line - scan 3
+0141 a Checkerboard 0161 q Horiz Line - scan 5
+0142 b Digraph: HT 0162 r Horiz Line - scan 7
+0143 c Digraph: FF 0163 s Horiz Line - scan 9
+0144 d Digraph: CR 0164 t Left "T" (|-)
+0145 e Digraph: LF 0165 u Right "T" (-|)
+0146 f Degree Symbol 0166 v Bottom "T" (|_)
+0147 g +/- Symbol 0167 w Top "T" (T)
+0150 h Digraph: NL 0170 x Vertical Bar (|)
+0151 i Digraph: VT 0171 y Less/Equal (<_)
+0152 j Lower-right corner 0172 z Grtr/Egual (>_)
+0153 k Upper-right corner 0173 { Pi symbol
+0154 l Upper-left corner 0174 | Not equal (=/)
+0155 m Lower-left corner 0175 } UK pound symbol
+0156 n Crossing lines (+) 0176 ~ Centered dot
+
+
+NOTE 1: Codes 0152-0156 and 0164-0170 are used to draw rectangular grids" each
+piece of this set is contiguous with other so the lines formed will be
+unbroken.
+
+NOTE 2: Codes 0157-0163 give better vertical resolution than dashes and
+underlines when drawing graphs; using these segments, 120 x 132 resolution may
+be obtained in 132 column mode with the Advanced Video Option installed.
+
+
+
+*****************************
+* Terminal Control Commands *
+*****************************
+
+Control Characters
+------------------
+
+ The control characters recognized by the VT100 are listed below. All
+other control characters cause no action to be taken.
+
+ Control characters (codes 00 - 037 inclusive) are specifically excluded
+from the control sequence syntax, but may be embedded within a control
+sequence. Embedded control characters are executed as soon as they are
+encountered by the VT100. The processing of the control sequence then
+continues with the next character recieved. The exceptions are: if the <ESC>
+character occurs, the current control sequence is aborted, and a new one
+commences beginning with the <ESC> just recieved. If the character <CAN>
+(030) or the character <SUB> (032) occurs, the current control sequence is
+aborted. The ability to embed control characters allows the synchronization
+characters XON and XOFF to be interpreted properly without affecting the
+control sequence.
+
+
+
+Control Octal
+Character Code Action Taken
+------------------------------------------------------------------------------
+<NUL> 0000 Ignored on input; not stored in buffer
+<ENQ> 0005 Transmit ANSWERBACK message
+<BEL> 0007 Sound bell
+<BS> 0010 Move cursor to the left one position, unless it is at
+ the left margin, in which case no action is taken.
+<HT> 0011 Move cursor to the next tab stop, or to the right
+ margin if no further tabs are set.
+<LF> 0012 Causes either a line feed or new line operation (See
+ new line mode.)
+<VT> 0013 Same as <LF>.
+<FF> 0014 Same as <LF>.
+<CR> 0015 Move the cursor to the left margin of the current line.
+<SO> 0016 Invoke the G1 character set, as designated by the SCS
+ control sequence.
+<SI> 0017 Invoke the G0 character set, as selected by the <ESC>(
+ sequence.
+<DC1> 0021 Causes terminal to resume transmission (XON).
+<DC3> 0023 Causes terminal to stop transmitting all codes except
+ XOFF and XON (XOFF).
+<CAN> 0030 If sent during a control sequence, the sequence id
+ immediately terminated and not executed. It also
+ causes the error character (checkerboard) to be
+ displayed.
+<SUB> 0032 Same as <CAN>.
+<ESC> 0033 Introduces a control sequence.
+<DEL> 0177 Ignored on input; not stored in buffer.
+
+
+ The VT100 is an upward and downward software-compatible terminal;
+that is, previous Digital video terminals have Digital's private standards
+for control sequences. The American National Standards Institute has since
+standardized escape and control sequences in terminals in documents X3.41-1974
+and X3.64-1977.
+
+ The VT100 is compatible with both the previous Digital standard and
+ANSI standards. Customers may use existing Digital software designed around
+the VT52 or new VT100 software. The VT100 has a "VT52 compatible" mode in
+which the VT100 responds to control sequences like a VT52. In this mode, most
+of the new VT100 features cannot be used.
+
+ Throughout this document references will be made to "VT52 mode" or
+"ANSI mode". These two terms are used to indicate the VT100's software
+compatibility.
+
+
+NOTE: The ANSI standards allow the manufacturer flexibility in implementing
+each function. This document describes how the VT100 will respond to the
+implemented ANSI central function.
+
+NOTE: ANSI standards may be obtained by writing:
+
+ American National Standards Institute
+ Sales Department
+ 1430 Broadway
+ New York, NY, 10018
+
+
+
+Definitions
+-----------
+
+ Control Sequence Introducer (CSI) - An escape sequence that provides
+ supplementary controls and is itself a prefix affecting the
+ interpretation of a limited number of contiguous characters.
+ In the VT100, the CSI is: <ESC>[
+
+ Parameter: (1) A string of zero or more decimal characters which
+ represent a single value. Leading zeros are ignored. The
+ decimal characters have a range of 0 (060) to 9 (071).
+ (2) The value so represented.
+
+ Numeric Parameter: A parameter that represents a number, designated by
+ Pn.
+
+ Selective Parameter: A parameter that selects a subfunction from a
+ specified set of subfunctions, designated by Ps. In general, a
+ control sequence with more than one selective parameter causes
+ the same effect as several control sequences, each with one
+ selective parameter, e.g., CSI Psa; Psb; Psc F is identical to
+ CSI Psa F CSI Psb F CSI Psc F.
+
+ Parameter String: A string of parameters separated by a semicolon.
+
+ Default: A function-dependent value that is assumed when no explicit
+ value, or a value of 0, is specified.
+
+ Final character: A character whose bit combination terminates an
+ escape or control sequence.
+
+
+ EXAMPLE: Control sequence to turn off all character attributes, then
+ turn on underscore and blink attributes (SGR). <ESC>[0;4;5m
+
+ Sequence:
+
+
+ Delimiters
+ / \
+ / \
+ | |
+ \ / \ /
+ <ESC>[ 0 ; 4 ; 5 m
+ ^^^^^^ ^ ^ ^ ^
+ |||||| | | | |
+ \||||/ \ | / +------Final character
+ \||/ \ | /
+ CSI Selective
+ Parameters
+
+
+ The octal representation of this string is:
+
+ 033 0133 060 073 064 073 065 0155
+ <ESC> [ 0 ; 4 ; 5 m
+
+
+ Alternate sequences which will accomplish the same thing:
+
+ 1) <ESC>[;4;m
+
+ 2) <ESC>[m
+ <ESC>[4m
+ <ESC>[5m
+
+ 3) <ESC>[0;04;005m
+
+
+Control Sequences
+-----------------
+
+ All of the following control sequences are transmitted from the Host to
+VT100 unless otherwise noted. All of the control sequences are a subset of
+those defined in ANSI X 3.64 1977 and ANSI X 3.41 1974.
+
+ The following text conforms to these formatting conventions:
+
+ 1) Control characters are designated by angle brackets (e.g.
+ the Escape character is <ESC>).
+
+ 2) Parameters are indicated by curly braces.
+
+ 3) Parameter types usually are indicated as one of:
+
+ {Pn} A string of digits representing a numerical
+ value.
+
+ {Ps} A character that selects an item from a list.
+
+ {a-z} Any lowercase sequence of one44 or more
+ characters in braces represent a value to be
+ entered (as in {Pn}), and the name in the
+ braces will be referred to in explanatory text.
+
+ 4) Spaces in the control sequence are present for clarity and
+ may be omitted. Spaces which are required will be
+ surrounded by single quotes: ' '.
+
+ 5) All other characters are literals.
+
+
+
+
+
+CPR Cursor Position Report VT100 to Host
+
+ <ESC>[ {Pn} ; {Pn} R Default Value: 1
+
+ The CPR sequence reports the active position by means of the
+ parameters. This sequence has two parameter values, the first
+ specifying the line and the second specifying the column. The default
+ condition with no parameters present, or parameters of 0, is equivelent
+ to a cursor at home position.
+
+ The numbering of the lines depends upon the state of the Origin Mode
+ (DECOM).
+
+ This control sequence is sent in reply to a device status report (DSR)
+ command sent from the host.
+
+
+
+CUB Cursor Backward Host to VT100 & VT100 to Host
+
+ <ESC>[ {Pn} D Default Value: 1
+
+ The CUB sequence move the cursor to the left. The distance moved is
+ determined by the parameter. If the parameter missing, zero, or one,
+ the cursor is moved one position. The cursor cannot be moved past the
+ left margin. Editor Function.
+
+
+CUD Cursor Down Host to VT100 & VT100 to Host
+
+ <ESC>[ {Pn} B Default value: 1
+
+ Moves the cursor down a number of lines as specified in the parameter
+ without changing columns. The cursor cannot be moved past the bottom
+ margin. Editor Function.
+
+
+CUF Cursor Foreward Host to VT100 & VT100 to Host
+
+ <ESC>[ {Pn} C Default Value: 1
+
+ The CUF sequence moves the cursor to the right a number of positions
+ specified in the parameter. The cursor cannot be moved past the right
+ margin. Editor Function.
+
+
+CUP Cursor Position
+
+ <ESC>[ {Pn} ; {Pn} H Default Value: 1
+
+ The CUP sequence moves the curor to the position specified by the
+ parameters. The first parameter specifies the line, and the second
+ specifies the column. A value of zero for either line or column moves
+ the cursor to the first line or column in the display. The default
+ string (<ESC>H) homes the cursor. In the VT100, this command behaves
+ identically to it's format effector counterpart, HVP.
+
+ The numbering of the lines depends upon the state of the Origin Mode
+ (DECOM). Editor Function.
+
+
+CUU Cursor Up Host to VT100 & VT100 to Host
+
+ <ESC>[ {Pn} A Default Value: 1
+
+ Moves the cursor up without changing columns. The cursor is moved up a
+ number of lines as indicated by the parameter. The cursor cannot be
+ moved beyond the top margin. Editor Function.
+
+
+DA Device Attributes Host to VT100 & VT100 to Host
+
+ <ESC>[ {Pn} c Default Value: 0
+
+ 1) The host requests the VT100 to send a DA sequence to indentify
+ itself. This is done by sending the DA sequence with no parameters,
+ or with a parameter of zero.
+
+ 2) Response to the request described above (VT100 to host) is generated
+ by the VT100 as a DA control sequencewith the numeric parameters as
+ follows:
+
+ Option Present Sequence Sent
+ ---------------------------------------------
+ No options <ESC>[?1;0c
+ Processor Option (STP) <ESC>[?1;1c
+ Advanced Video Option (AVO) <ESC>[?1;2c
+ AVO and STP <ESC>[?1;3c
+ Graphics Option (GPO) <ESC>[?1;4c
+ GPO and STP <ESC>[?1;5c
+ GPO and AVO <ESC>[?1;6c
+ GPO, ACO, and STP <ESC>[?1;7c
+
+<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>,
+<<<I doubt if alot of these DEC commands work..a few do.. (like scroll areas)>>
+<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
+
+DECALN Screen Alignment Display (DEC private)
+
+ <ESC># 8
+
+ This command causes the VT100 to fill it's screen with uppercase Es for
+ screen focus and alignment.
+
+
+DECANM ANSI/VT52 Mode (DEC Private)
+
+ This is a private parameter to the SM and RM control sequences. The
+ reset state causes only VT52 compatible escape sequences to be
+ recognized. The set state causes only ANSI compatible escape sequences
+ to be recognized. See the entries for MODES, SM, and RM.
+
+
+DECARM Auto Repeat Mode (DEC Private)
+
+ This is a private parameter to the SM and RM control sequences. The
+ reset state causes no keyboard keys to auto-repeat, the set state
+ causes most of them to. See MODES, SM, and RM.
+
+
+DECAWM Autowrap Mode (DEC Private)
+
+ This is a private parameter to the SM and RM control sequences. The
+ reset state prevents the cursor from moving when characters are
+ recieved while at the right margin. The set state causes these
+ characters to advance to the next line, causing a scroll up if required
+ and permitted. See MODES, SM, and RM.
+
+
+DECCKM Cursor Keys Mode (DEC Private)
+
+ This is a private parameter to the SM and RM control requences. This
+ mode is only effective when the terminal is in keypad application mode
+ (DECPAM) and the ANSI/VT52 mode (DECANM) is set. Under these
+ conditions, if this mode is reset, the cursor keys will send ANSI
+ cursor control commands. If setm the cursor keys will send application
+ function commands (See MODES, RM, and SM).
+
+
+DECCOLM Column Mode (DEC Private)
+
+ This is a private parameter to the SM and RM control sequences. The
+ reset state causes an 80 column screen to be used. The set state
+ causes a 132 column screen to be used. See MODES, RM, and SM.
+
+
+DECDHL Double Height Line (DEC Private)
+
+ Top Half: <ESC>#3
+ Bottom Half: <ESC>#4
+
+ These sequences cause the line containing the cursor to become the top
+ or bottom half of a double-height, double width line. The sequences
+ should be used in pairs on adjacent lines with each line containing the
+ same character string. If the line was single width single height, all
+ characters to the right of the center of the screen will be lost. The
+ cursor remains over the same character position, unless it would be to
+ the right of the right margin, in which case it is moved to the right
+ margin.
+
+
+DECDWL Double Width Line (DEC Private)
+
+ <ESC>#6
+
+ This causes the line that contains the cursor to become double-width
+ single height. If the line was single width, all characters ro the
+ right of the center of the screen will be lost. The cursor remains
+ over the same character position, unless it would be to the right of
+ the right margin, in which case it is moved to the right margin.
+
+
+DECID Identify Terminal (DEC Private)
+
+ <ESC>Z
+
+ This sequence causes the same response as the DA sequence. This
+ sequence will not be supported in future models.
+
+
+DECINLM Interlace Mode (DEC Private)
+
+ This is a private parameter to the RM and SM control sequences. The
+ reset state (non-interlace) causes the video processor to display 240
+ scan lines per frame. The set state causes the video processor to
+ display 480 scan lines per screen. See MODES, RM, and SM.
+
+
+DECKPAM Keypad Application Mode (DEC Private)
+
+ <ESC>=
+
+ The auxiliary keypad keys will transmit control sequences.
+
+
+DECKPNM Keypad Numeric Mode (DEC Private)
+
+ <ESC> >
+
+ The auxiliary keypad keys will send ASCII codes corresponding to the
+ characters engraved on their keys.
+
+
+DECLL Load LEDs (DEC Private)
+
+ <ESC>[ {Ps} q Default Value: 0
+
+ Load the four programmable LEDs on the keyboard according to the
+ prameter(s).
+
+ Parameter Meaning
+ -----------------------
+ 0 Clear All LEDs
+ 1 Light L1
+ 2 Light L2
+ 3 Light L3
+ 4 Light L4
+
+
+DECOM Origin Mode (DEC Private)
+
+ This is a private parameter to SM and RM control sequences. The reset
+ state causes the origin (or home position) to be the upper left
+ character position of the screen. Line and column numbers are,
+ therefore, independent of current margin settings. The cursor may be
+ positioned outside the margins with a cursor position (CUP) or
+ horizontal and vertical position (HVP) control.
+
+ The set state causes the origin to be at the upper left character
+ position within the current margins. Line and column numbers are,
+ therefore, relative to the current margin settings. The cursor cannot
+ be positioned outside of the margins.
+
+ The cursor is moved to the new home position when this mode is set or
+ reset. Lines and columns are numbered consecutively, with the origin
+ being line 1, column 1.
+
+
+DECRC Restore Cursor (DEC Private)
+
+ <ESC>8
+
+ This sequence causes the previously saved cursor position, graphic
+ rendition, and character set to be restored.
+
+
+DECREPTPARM Report Terminal Parameters VT100 to Host
+
+ <ESC>[ {sol} ; {par} ; {nbits} ; {xspd} ; {rspd} ; {cmul} ; {flags} x
+
+ This sequence is generated by the VT100 to notify the host of the
+ status of selected terminal parameters. The status sequence may be
+ sent when requested by the host (via DECREQTPARM) or at the terminal's
+ discretion. On power up or reset, the VT100 is inhibited from sending
+ unsolicited reports.
+
+ The meanings of the sequence paramters are:
+
+ Parameter Value Meaning
+ ------------------------------------------------------------------
+ {sol} 1 This message is a report.
+ 2 This message is a report, and the terminal is
+ only reporting on request.
+
+ {par} 1 No parity set
+ 4 Parity set and odd
+ 5 Parity set and even
+
+ {nbits} 1 8 bits per character
+ 2 7 bits per character
+
+ {xspd} 0 Speed set to 50 bps
+ -and- 8 Speed set to 75 bps
+ {rspd} 16 Speed set to 110 bps
+ 24 Speed set to 134.5 bps
+ {xspd}= 32 Speed set to 150 bps
+ Transmit 40 Speed set to 200 bps
+ Speed 48 Speed set to 300 bps
+ 56 Speed set to 600 bps
+ {rspd}= 64 Speed set to 1200 bps
+ Recieve 72 Speed set to 1800 bps
+ Speed 80 Speed set to 2000 bps
+ 88 Speed set to 2400 bps
+ 96 Speed set to 3600 bps
+ 104 Speed set to 4800 bps
+ 112 Speed set to 9600 bps
+ 120 Speed set tp 19200 bps
+
+ {cmul} 1 The bit rate multiplier is 16
+
+ {flags} 0-15 This value communicates the four switch values
+ in block 5 of SET-UP B, which are only visible
+ to the user when an STP option is installed.
+
+
+DECREQTPARM Request Terminal Parameters
+
+ <ESC>[ {Ps} x
+
+ The host sends this sequence to request the VT100 to send a DECREPTPARM
+ sequence back. {Ps} can be either 0 or 1. If 0, the terminal will be
+ allowed to send unsolicited DECREPTPARMs. These reports will be
+ generated each time the terminal exits the SET-UP mode. If {Ps} is 1,
+ then the terminal will only generate DECREPTPARMs in response to a
+ request.
+
+
+DECSC Save Cursor (DEC Private)
+
+ <ESC>7
+
+ Causes the cursor position, graphic rendition, and character set to be
+ saved. (See DECRC)
+
+
+DECSCLM Scrolling Mode (DEC Private)
+
+ This is a private parameter to RM and SM control sequences. The reset
+ state causes scrolls to "jump" instantaneuously one line at a time.
+ The set state causes the scrolls to be "smooth", and scrolls at a
+ maximum rate of siz lines/sec. See MODES, RM, and SM.
+
+
+DECSCNM Screen Mode (DEC Private)
+
+ This is a private parameter to RM and SM control sequences. The reset
+ state causes the screen to be black with white characters; the set
+ state causes the screen to be white with black characters. See MODES,
+ RM, and SM.
+
+<<<<This one works...and is very handy! >>>>
+DECSTBM Set Top and Bottom Margins (DEC Private)
+
+ <ESC>[ {Pn} ; {Pn} r Default Values: See Below
+
+ This sequence sets the top and bottom margins to define the scrolling
+ region. The first parameter is the line number of the first line in
+ the scrolling region; the second parameter is the line number of the
+ bottom line of the scrolling region. Default is the entire screen (no
+ margins). The minimum region allowed is two lines, i.e., the top line
+ must be less than the bottom. The cursor is placed in the home
+ position (See DECOM).
+
+
+DECSWL Single-width Line (DEC Private)
+
+ <ESC>#5
+
+ This causes the line which contains the cursor to become single-width,
+ single-height. The cursor remains on the same character position.
+ This is the default condition for all new lines on the screen.
+
+
+DECTST Invoke Confidence Test
+
+ <ESC>[ 2 ; {Ps} y
+
+ Ps is the parameter indicating the test to be done. It is computed by
+ taking the weight indicated for each desired test and adding them
+ together. If Ps is 0, no test is performed but the VT100 is reset.
+
+ Test Weight
+ --------------------------------------------------------------
+ POST (ROM checksum, RAM NVR, keyboardm and AVO) 1
+ Data Loop Back (Loopback connector required) 2
+ EIA Modem Control Test (Loopback connector req.) 4
+ Repeat Testing until failure 8
+
+
+DSR Device Status Report Host to VT100 & VT100 to Host
+
+ <ESC>[ {Ps} n
+
+ Requests and reports the general status of the VT100 according to the
+ following parameters:
+
+ Parameter Meaning
+ ---------------------------------------------------------------
+ 0 Response from VT100 - Ready, no faults detected
+ 3 Response from VT100 - Malfunction Detected
+ 5 Command from host - Report Status (using a DSR control
+ sequence)
+ 6 Command from host - Report Active Position (using a CPR
+ sequence)
+
+ DSR with a parameter of 0 or 3 is always sent as a response to a
+ requesting DSR with a parameter of 5.
+
+
+ED Erase in Display
+
+ <ESC>[ {Ps} J Default: 0
+
+ This sequence erases some or all of the characters in the display
+ according to the parameter. Any complete line erased by this sequence
+ will return that line to single width mode. Editor Function.
+
+ Parameter Meaning
+ ----------------------------------------------------------------
+ 0 Erase from the cursor to the end of the screen.
+ 1 Erase from the start of the screen to the cursor.
+ 2 Erase the entire screen.
+
+
+EL Erase in Line
+
+ <ESC>[ {Ps} K Default: 0
+
+ Erases some or all characters in the active line, according to the
+ parameter. Editor Function.
+
+ Parameter Meaning
+ ---------------------------------------------------------------
+ 0 Erase from cursor to the end of the line.
+ 1 Erase from the start of the line to the cursor.
+ 2 Erase the entire line.
+
+
+HTS Horizontal Tab Set
+
+ <ESC>H
+
+ Set a tab stop at the current cursor position. Format Effector.
+
+
+HVP Horizontal and Vertical Position
+
+ <ESC>[ {Pn} ; {Pn} f
+
+ Moves the cursor to the position specified by the parameters. The
+ first parameter specifies the line, and the second specifies the
+ column. A parameter of 0 or 1 causes the active position to move to
+ the first line or column in the display. In the VT100, this control
+ behaves identically with it's editor counterpart, CUP. The numbering
+ of hte lines depends upon the state of the Origin Mode (DECOM). Format
+ Effector.
+
+
+IND Index
+
+ <ESC>D
+
+ This sequence causes the cursor to move downward one line without
+ changing the column. If the cursor is at the bottom margin, a scroll
+ up is performed. Format Effector.
+
+
+LNM Line Feed/New Line Mode
+
+ This is a parameter to SM and RM control sequences. The reset state
+ causes the interpretation of the <LF> character to imply only vertical
+ movement of the cursor and causes the RETURN key to send the single
+ code <CR>. The set state causes the <LF> character to imply movement
+ to the first position of the following line, and causes the RETURN key
+ to send the code pair <CR><LF>. This is the New Line option.
+
+ This mode does not affect the Index (IND) or the next line (NEL) format
+ effectors.
+
+
+MODES The Following is a list of VT100 modes which may be changed with Set
+ Mode (SM) and Reset Mode (RM) controls.
+
+ ANSI Specified Modes
+
+ Parameter Mnemonic Function
+ ------------------------------------------------------------------
+ 0 Error (Ignored)
+ 20 LNM Line Feed/New Line Mode
+
+
+ DEC Private Modes
+
+ If the first character in the parameter string is ? (077), the
+ parameters are interpreted as DEC private parameters according to the
+ following:
+
+ Parameter Mnemonic Function
+ -------------------------------------------------------------------
+ 0 Error (Ignored)
+ 1 DECCKM Cursor Key
+ 2 DECANM ANSI/VT52
+ 3 DECCOLM Column
+ 4 DECSCLM Scrolling
+ 5 DECSCNM Screen
+ 6 DECOM Origin
+ 7 DECAWM Auto Wrap
+ 8 DECARM Auto Repeat
+ 9 DECINLM Interlace
+
+ Any other parameter values are ignored.
+
+ The following modes, which are specified in the ANSI standard, may be
+ considered to be permanently set, permanently reset, or not applicable,
+ as noted.
+
+ Mnemonic Function State
+ ------------------------------------------------------
+ CRM Control Representation Reset
+ EBM Editing Boundary Reset
+ ERM Erasure Set
+ FEAM Format Effector Action Reset
+ FETM Format Effector Transfer Reset
+ GATM Guarded Area Transfer NA
+ HEM Horizontal Editing NA
+ IRM Insertion-replacement Reset
+ KAM Keyboard Action Reset
+ MATM Multiple area transfer NA
+ PUM Positioning Unit Reset
+ SATM Selected Area Transfer NA
+ SRTM Status Reporting Transfer Reset
+ TSM Tabulation Stop Reset
+ TTM Transfer Termination NA
+ VEM Vertical Editing NA
+
+
+NEL Next Line
+
+ <ESC>E
+
+ This causes the cursor to move to the first position of the next line
+ down. If the cursor is on the bottom line, a scroll is performed.
+ Format Effector.
+
+
+RI Reverse Index
+
+ <ESC>M
+
+ Move the cursor up one line without changing columns. If the cursor is
+ on the top line, a scroll down is performed.
+
+
+RIS Reset to Initial State
+
+ <ESC>c
+
+ Resets the VT100 to the state is has upon power up. This also causes
+ the execution of the POST and signal INT H to be asserted briefly.
+
+
+RM Reset Mode
+
+ <ESC>[ {Ps} ; {Ps} l
+
+ Resets one or more VT100 modes as specified by each selective parameter
+ in the parameter string. Each mode to be reset is specified by a
+ separate parameter. See MODES and SM.
+
+
+SCS Select Character Set
+
+ The appropriate D0 and G1 character sets are designated from one of the
+ five possible sets. The G0 and G1 sets are invokedd by the characters
+ <SI> and <SO>, respectively.
+
+ G0 Sets G1 Sets
+ Sequence Sequence Meaning
+ ------------------------------------------------------------------
+ <ESC>(A <ESC>)A United Kingdom Set
+ <ESC>(B <ESC>)B ASCII Set
+ <ESC>(0 <ESC>)0 Special Graphics
+ <ESC>(1 <ESC>)1 Alternate Character ROM
+ Standard Character Set
+ <ESC>(2 <ESC>)2 Alternate Character ROM
+ Special Graphics
+
+ The United Kingdom and ASCII sets conform to the "ISO international
+ register of character sets to be used with escape sequences". The
+ other sets are private character sets. Special graphics means that the
+ graphic characters fpr the codes 0137 to 0176 are replaced with other
+ characters. The specified character set will be used until another SCS
+ is recieved.
+
+
+SGR Select Graphic Rendition
+
+ <ESC>[ {Ps} ; {Ps} m
+
+ Invoke the graphic rendition specified by the parameter(s). All
+ following characters transmitted to the VT100 are rendered according
+ to the parameter(s) until the next occurrence of an SGR. Format
+ Effector.
+
+ Parameter Meaning
+ ---------------------------------------------------------------
+ 0 Attributes Off
+ 1 Bold or increased intensity
+ 4 Underscore
+ 5 Blink
+ 7 Negative (reverse) image
+
+ All other parameter values are ignored.
+
+ Without the Advanced Video Option, only one type of character attribute
+ is possible, as determined by the cursor selection; in that case
+ specifying either underscore or reverse will activate the currently
+ selected attribute.
+
+
+SM Set Mode
+
+ <ESC> [ {Ps} ; {Ps} h
+
+ Causes one or more modes to be set within the VT100 as specified by
+ each selective parameter string. Each mode to be set is specified by a
+ seperate parameter. A mode is considered set until it is reset by a
+ Reset Mode (RM) control sequence. See RM and MODES.
+
+ [Editor's note: The original DEC VT100 documentation EK-VT100-UG-003
+ erroneously omitted the "[" character from the SM sequence.]
+
+
+TBC Tabulation Clear
+
+ <ESC>[ {Ps} g
+
+ If the parameter is missing or 0, this will clear the tab stop at the
+ cursor's position. If it is 3, this will clear all of the tab stops.
+ Any other parameter is ignored. Format Effector.
+
+
+
+ ___
+ ( /_)_---_-------------------------------------------------
+(_/ ( ! / ) Petri Virekoski ------ pev@vipu.hut.fi ------
+-------!/---------------------------------------------------
+
+ =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
+
+Article 4247 of comp.terminals:
+Path: cs.utk.edu!willis.cis.uab.edu!news.ecn.bgu.edu!vixen.cso.uiuc.edu!howland.reston.ans.net!news.sprintlink.net!uunet!news.aurora.net!netnews
+From: msimms@kea.bc.ca (Michael Simms)
+Newsgroups: comp.terminals
+Subject: Re: VT420 control sequence question
+Date: 15 Jun 1995 01:23:10 GMT
+Organization: Attachmate Canada
+Lines: 39
+Distribution: world
+Message-ID: <3ro21u$559@angate.disc-net.com>
+References: <3rnlcd$pg8@senator-bedfellow.MIT.EDU>
+NNTP-Posting-Host: 204.174.235.139
+X-Newsreader: WinVN 0.92.5
+
+In article <3rnlcd$pg8@senator-bedfellow.MIT.EDU>, igorlord@mit.edu (Igor Lyubashevskiy) says:
+>
+>Hi, while reading through DEC's VT420 manuals, I enountered a control sequence
+>that I don't understand. That is "Change attributes in rectangular area"
+>(DECCARA).
+>
+>The manual says that this sequence's "syntax" is
+> CSI Pt;Pl;Pb;Pr;Ps1..Psn $ r
+>Where Psn = visual character attributes.
+>
+>Does anyone know what Psn really is (what those visual character attributes
+>are)? And how many of those Psn can be there?
+>If you can help, please reply either by email or by a followup to this group.
+>
+>Thank you for your time,
+>
+>Igor
+>
+
+The Ps1..Psn are the standard character attributes such as used with
+CSIm (SGR). The values they can hold are:
+
+0 - reset all attributes (white on black)
+1 - bold
+4 - underline
+5 - blink
+7 - inverse
+21 - bold off
+24 - underline off
+25 - blink off
+27 - inverse off
+
+For example to turn all the characters in the top left quadrant of the
+screen bold and inverse with no blinking (as I hate blinking) use:
+ CSI 1;1;40;12;1;7;25$r
+
+As to the number of parameters, I don't know.
+
+Michael Simms.
+
+
+ =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=