MTS Volume 4 - Terminals and Networks (3278)

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MTS 4: Terminals and Networks in MTS Device _______________ Commands July 1988 Device commands can be used to control certain functions of the terminal such as windowing, tabbing, and the translation of characters to uppercase on input. Device commands may be entered whenever the system is expecting input. There are two levels of device commands. The first level is the set of Ontel device commands that are processed within the Ontel terminal. These commands are described in this section with the complete list given in Appendix A. The second level is the set of UMnet device commands that are processed by the UMnet Computer Network. These device commands are described in the section "The UMnet Computer Network" in this volume. All device commands must begin with the device-command character, which is initially the percent sign (%). Lines that begin with a single device-command character are examined by the Ontel terminal when they are entered to determine if they are valid Ontel device commands. If they are, the command is processed and erased from the screen. If the command is not a valid Ontel device command, it is passed on to UMnet as a command _______ line ____ (not a data line) for device-command processing. If the command is valid, it is acted upon by UMnet; if it is invalid, it is rejected (an error message will be printed). If user wishes to send a data ____ line ____ that begins with the device-command character, the device- command character must be doubled (or the %DCC command may be used to change the current device-command character). | The %RESET, %LCI, and %UCI device commands are first processed by the Ontel and then by UMnet. The acknowledgement of Ontel device commands depends on the type of command entered. If the command calls for an overt action, such as scrolling, its execution constitutes the acknowledgment. If the command merely sets a parameter, the user must assume the command had the desired effect. In the case of an invalid parameter, the command is ignored and no error message is generated. Normally, the device command is not recorded in the conversation buffer. Only the MTS $CONTROL command or the CONTROL subroutine can be used to send Ontel device commands to the terminal from the system (e.g., from a sigfile using the $CONTROL command or from a program using the CONTROL subroutine). Otherwise, all lines sent to the terminal from the system are treated as data lines even if they begin with the devicecommand character. 22 The Ontel Display Terminal
July 1988 Moving _________________ the Window MTS 4: Terminals and Networks in MTS The Ontel provides several ways for a user to "move" the window, so that any part of the conversation buffer can be displayed on the screen. The window can be moved right or left, to display all parts of lines that are longer than 80 characters, or it can be moved forward and backward, to display all parts of the terminal session. Moving the window is also called "windowing" or "scrolling." One way to move the window is to enter one of the four device commands %WR=n (window right) %WL=n (window left) %WB=n (window backward) %WF=n (window forward) The %WR=n command displaces the window to the right by "n" characters. This is convenient for viewing long lines. The %WL=n command moves the window to the left. The prefix characters are not affected by these commands and remain displayed. The %WB=n command moves the window backward in the conversation buffer by "n" lines. This is useful for viewing previous parts of the conversation. %WF=n moves the window forward by "n" lines. There is no lateral displacement involved in the window-backward and window-forward operations. If "n" is omitted on a window command, the extreme movement is assumed. For example, %WL moves the window to the extreme left of the conversation buffer, and %WB causes the first window in the conversation buffer to be displayed. The equal sign may be omitted from the command. Another way to move the window is to use the program function keys which provide windowing facilities. For example, the window may be moved forward 20 lines by pressing the %WF=20 key. Similarly, pressing the %WL key moves the window to the extreme left portion of the conversation buffer, and pressing the %WB key moves the window to the first set of lines in the buffer. The use of the program function keys is further described below, in the section "Program Function Keys." There are also three control keys which may be used to scroll the window to any part of the conversation buffer. The UP and DOWN cursor-positioning keys, when pressed with the SHIFT key engaged, will move the text in the window one line up or down. These keys are located in the control pad and are labelled with an arrow pointing in the given direction. (Note that it is the text, not the window, which moves in the given direction.) The ERASE TO EOL key, when pressed with the SHIFT key engaged, moves the window such that the last set of lines in the conversation buffer is displayed on the screen. The number of lines displayed in this window is the same as the last time the last line in the conversation buffer was displayed on the screen, i.e., %WF. Each time the conversation buffer is updated, i.e., after a complete line is sent to or received from the system, the window is forced to the The Ontel Display Terminal 23
Page 1 and 2: M T S The Michigan Terminal System
Page 3 and 4: July 1988 PREFACE _______ MTS 4: Te
Page 5 and 6: July 1988 PREFACE _________________
Page 7 and 8: Contents ________ Preface . . . . .
Page 9 and 10: SSLOCN . . . . . . . . . .193 EOF .
Page 11 and 12: July 1988 MTS 4: Terminals and Netw
Page 21: July 1988 MTS 4: Terminals and Netw
Page 33 and 34: July 1988 APPENDIX ________________
Page 35 and 36: July 1988 Command: BAUD=n _ MTS 4:
Page 37 and 38: July 1988 (2) Issue the command MTS
Page 39 and 40: July 1988 Command: DEF? ____ DEF? _
Page 41 and 42: July 1988 Command: FAST _ MTS 4: Te
Page 43 and 44: July 1988 Command: HIST=[n] _ MTS 4
Page 45 and 46: July 1988 Commands: PFAn=string ___
Page 47 and 48: July 1988 Command: ROLL __ MTS 4: T
Page 49 and 50: July 1988 Commands: WB=[n] _ WF=[n]
Page 51 and 52: July 1988 The Standard Keyboard Key
Page 53 and 54: July 1988 Table ___________________
Page 55 and 56: July 1988 | MERIT/UMNET ___________
Page 57 and 58: July 1988 Transmission ____________
Page 59 and 60: July 1988 ARRANGING _______________
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July 1988 MODES __________________
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July 1988 BINARY Mode MTS 4: Termin
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July 1988 | Summary _______________
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July 1988 Functional ______________
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July 1988 MTS 4: Terminals and Netw
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July 1988 BROADCAST _________ MTS 4
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July 1988 CLOCK _____ MTS 4: Termin
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July 1988 CRDELAY _______ MTS 4: Te
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July 1988 DEQUEUE _______ MTS 4: Te
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July 1988 HELLO _____ MTS 4: Termin
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July 1988 INLEN _____ Purpose: To s
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July 1988 JOB ___ MTS 4: Terminals
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July 1988 LINES _____ MTS 4: Termin
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July 1988 NPC ___ MTS 4: Terminals
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July 1988 Examples: %PAGEWAIT=10 MT
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July 1988 PFX ___ MTS 4: Terminals
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July 1988 SNS ___ MTS 4: Terminals
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July 1988 TBDELAY _______ MTS 4: Te
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July 1988 UCI ___ MTS 4: Terminals
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July 1988 ? _ MTS 4: Terminals and
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July 1988 APPENDIX ________________
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July 1988 APPENDIX ________________
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July 1988 | APPENDIX ______________
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July 1988 | APPENDIX ______________
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July 1988 | APPENDIX ______________
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July 1988 OPEN FAILED: message MTS
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July 1988 | THE _______________ NET
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July 1988 | where "host" is UM, UB,
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July 1988 | (1) Copying a file from
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July 1988 APPENDIX ________________
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July 1988 .NET ___ [{host|*pdn*}] M
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July 1988 .STOP __ .$command ..text
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July 1988 INTRODUCTION ____________
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July 1988 Initialization __________
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July 1988 The legal attributes are:
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July 1988 ’CHECK’,value MTS 4:
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July 1988 ’MFLENLOC’,screen,fie
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July 1988 APPENDIX ________________
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July 1988 APPENDIX ________________
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July 1988 | window, | Ontel, 16, 22
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| Reader’s Comment Form | Termina
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| Update Request Form | Terminals a
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THE ____________________________ IB
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THE ____________ KEYBOARD The keybo
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the insertion is not allowed. While
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Conversation ___________________ Bu
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Panel 3. Entering the Password Pane
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Pause/Continue ______________ The S
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The %WR=n command moves the window
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Program-Function __________________
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APPENDIX __________________________
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Command: ACTIVITY[={ON|OFF}] _ ACTI
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Command: ATTN __ ATTN ____ Purpose:
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Commands: CBEGIN __ CEND __ CBEGIN,
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Command: {DEQUEUE|DQ}[=n] __ __ DEQ
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Command: {EQ|MTQ} _ _ EQ __ Purpose
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Command: FREEZE=n __ FREEZE ______
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Command: INSERT=string _ INSERT ___
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Command: KEYBOARD={UC|LC} _ UCI=[{O
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Command: PAGE _ PAGE ____ Purpose:
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Commands: PFSAVE=name ___ PFRESTORE
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Command: QUIT __ QUIT ____ Purpose:
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Command: ROLL _ ROLL ____ Purpose:
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TABS ____ Command: {TABI|TABS|TI}[=
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Command: WAIT __ WAIT ____ Purpose:
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Command: ZIP _ ZIP ___ Purpose: To
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⁴The name for this graphic is bro
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READ ____ @BIN read modified @BIN,@
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APPENDIX __________________________
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APPENDIX __________________________
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