ADDS Programming. AccuSoft 7

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232 AccuTerm 7 Help

3.2.2 Wyse Programming Notes

† Functions tagged with the single-dagger symbol are only valid in Wyse 50 or Wyse 60 emulation.

‡ Functions tagged with the double-dagger symbol are only valid in Viewpoint Enhanced emulation.

3.3 ADDS Programming

This topic describes the command sequences for programming the ADDS Viewpoint A2, Viewpoint 60 and Procomm VP60 terminal emulations. These emulations use a common command set with a few differences. The differences are noted.

Operating Modes

ESC

Status line off.

ESC

Status line on.

ESC

Screen display off.

ESC

ETB

Screen display on.

Turns off the cursor.

CAN

Turns on the cursor.

ESC

% ! 0

Enters Tektronix 4100 graphics mode.

CAN

If the graphics mode is enabled, this command puts the terminal in the Tektronix emulation mode. If the graphics mode is disabled, this command is ignored.

Exits from the Tektronix graphics emulation mode.

Cursor Positioning

ACK

Cursor right. If the cursor is on the last column of the line, the cursor will wrap to the next line, possibly scrolling the screen up.

NAK

Cursor left. If the cursor is at the beginning of the line, it is moved up to the last column of

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the previous line. If the cursor is at the home position, it is moved to the lower right hand corner of the screen.

Cursor down. If the cursor is on the last line of the screen and the "no scroll" mode is turned off, the screen will scroll up one line. Otherwise, the cursor will move to the top line of the screen.

SUB

Cursor up. If the cursor is at the top row, it is moved to the bottom row.

Moves the cursor to the first column (column zero) of the current row.

Moves cursor to row r, where r is a valid row code from the

Viewpoint Cursor Address Table

DLE c

Moves the cursor to column c where c is a valid column in the from the

Viewpoint Cursor

Address Table

ESC

r c

Moves the cursor to row r and column c where r and c are single byte cursor address codes from the

Wyse Cursor Address Table

. Note that this command cannot position the cursor past column 95.

Erasing and Editing

Clears the screen and returns the cursor to the home position (upper left corner of the screen). Turns off the protected mode.

ESC

Clears from the cursor position to the end of the current line.

ESC

Clears from the cursor position to the end of the screen.

ESC

Insert line. A blank line is inserted before the current line. The current line and all lines below are moved down one row. The bottom line of the screen is lost. The cursor is moved to the left most column of the inserted line.

ESC

Insert character. A blank is inserted at the current cursor position. All characters from the cursor position to the right are moved right one column.

ESC

Delete line. The current line is deleted. All lines below the current line are moved up one position. The bottom line is blank. The cursor is moved to the left most column.

234 AccuTerm 7 Help

ESC

Delete character. The character at the current cursor position is deleted. All characters to the right of the cursor are moved left one column and a blank is placed on the last column of the line.

Video Attributes

The Viewpoint A2, Viewpoint 60 and Procomm VP60 have different ways of programming video attributes.

The ADDS Viewpoint A2 terminal supports video attributes through the use of "tagged" characters.

When a character is received from the host, it is either "tagged" or "normal". Tagged characters are displayed with the currently assigned tagged video attribute. Only one attribute may be displayed on the screen at one time - all characters which are "tagged" are displayed using the current tag attribute.

Other emulations, including Viewpoint A2 Enhanced and ADDS 4000, allow multiple attributes to be displayed simultaneously.

Programming video attributes involves two separate steps. First, the tag attribute must be assigned.

Next, in order to display characters in the assigned tag attribute, a "start tag attribute" code must be sent. To send characters in the normal attribute, an "end tag attribute" code must be sent. These two steps are independent and can be executed in either order.

The ADDS Viewpoint 60 (and Procomm VP60) emulations use the same escape sequence as the

Viewpoint A2 but it is interpreted differently. Under ADDS Viewpoint 60 mode, the attribute takes up a space and changes all following characters to the end of the screen or until another attribute character is encountered. It works similar to the Wyse 50 video attributes. Under Procomm VP60, multiple visual attributes may be displayed at the same time, but the attribute character does not use a space on the screen, and does not affect any previously displayed characters. It works similar to the Wyse 60 video attributes.

Start tagged attribute. All characters received after this code are displayed with the currently assigned tagged attribute. If the tagged attribute is changed, the attribute of the displayed characters also changes.

End tagged attribute. All characters received after this code are displayed with the normal video attribute.

ESC

ADDS Viewpoint A2: Assign visual attribute. This command sets the current visual attribute. All characters which are “tagged” are displayed on this attribute. The attribute is specified by the attribute code a from the

Viewpoint Attribute Code Table .

ADDS Viewpoint 60: Assign visual attribute. This command is used to start a specific attribute. This command changes all characters from the current position until the end of the screen or until another attribute code character is encountered. The attribute uses a screen position. The attribute is specified by the attribute code a from the

Viewpoint

Attribute Code Table

Procomm VP60: Assign visual attribute. This command is used to start a specific attribute. The attribute does not use a screen position. All characters output after this

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command are displayed in the specified attribute. The attribute code is specified by the attribute code a from the

Viewpoint Attribute Code Table

Line Graphics

ESC

Turn on line graphics mode. All characters received while the line graphics mode is on are interpreted as graphics characters according to the

Viewpoint 60 Graphic Character Table .

ESC

Turn off line graphics mode.

Printer Control

DC2

Auto (copy) print mode. Characters are displayed and printed. This command will be ignored if the current slave printer selection is "None".

DC4

Cancel auto or transparent print mode. Note: This command will not turn the printer off if it

was turned on by the Viewpoint Enhanced transparent print or ANSI print commands.

ESC

Transparent print mode. Characters are printed, but not displayed.

ESC

Cancel transparent print mode.

ESC

[ ? 5 i

Transparent print mode (ANSI). Characters are printed, but not displayed. When AccuTerm receives this command, it goes into transparent print mode until it receives the ANSI print off sequence below. This command is useful for printing graphics data to the printer. Since

AccuTerm requires the specific ANSI cancel command below to exit transparent print mode, there is less chance of a control character interrupting the graphic printing.

ESC

[ ? 4 i

Cancel transparent print mode (ANSI).

3.3.1 Viewpoint Tables

3.3.1.1

Viewpoint Cursor Address Table

The Viewpoint Cursor Address Table shows the character code used by the Viewpoint emulations to specify cursor column (

) or row (

Column (

) Code Column (

) Code

NUL

SOH

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Column (

) Code Column (

) Code

STX

ETX

EOT

r s t

ENQ

@ u

ACK

BEL

DLE

DC1

DC2

v w x y

Code

DC3

DC4

NAK

SYN

ETB

CAN

SPACE

(

)

\ a b c d e f g h i

Row (

)

3.3.1.2

Viewpoint Attribute Code Table

The Viewpoint Attribute Code Table defines the attribute code character (

) used by the Viewpoint emulations to assign visual attributes.

Code (

) Attribute Type

Normal

Dim

Normal Blinking

Dim Blinking

Reverse

Dim Reverse

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Code (

) Attribute Type

Reverse Blinking

Dim Reverse Blinking

Underlined

a b c d

Dim Underlined

Underlined Blinking

Dim Underline Blinking

Invisible

3.3.1.3

Viewpoint Function Key Table

The Viewpoint Function Key Table defines the key code character (

) used by the Viewpoint emulations to program function and keypad keys.

Key

F13

F14

F15

F16

F10

F11

F12

BKSP

TAB

INS

HOME

END

PGUP

PGDN

LEFT

RIGHT

DOWN

ESC

ENTER

KPD ENTER

;

SPACE

Normal key code (

) Shifted key code (

)

NUL

SOH

STX

ETX

EOT

ENQ

ACK

BEL

CAN

SUB

ESC

DLE

DC1

DC2

DC3

DC4

NAK

SYN

ETB

8 X

[

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3.3.1.4

Viewpoint Key Code Table

The Viewpoint Key Code Table describes the default character sequence transmitted by the function, keypad and other special keys on the PC keyboard and the corresponding real terminal key.

PC Key

BKSP

SHIFT+BKSP

TAB

SHIFT+TAB

INS

SHIFT+F2

SHIFT+F3

SHIFT+F4

SHIFT+F5

SHIFT+F6

SHIFT+INS

DEL

SHIFT+DEL

HOME

SHIFT+HOME

END

SHIFT+END

PGUP

SHIFT+PGUP

PGDN

SHIFT+PGDN

LEFT

SHIFT+LEFT

RIGHT

SHIFT+RIGHT

SHIFT+UP

DOWN

SHIFT+DOWN

ESC

SHIFT+ESC

ENTER

SHIFT+ENTER

KPD ENTER

SHIFT+KPD ENTER

SHIFT+F1

Terminal Key

BKSP

SHIFT+BKSP

TAB

SHIFT+TAB

INS

SHIFT+F2

SHIFT+F3

SHIFT+F4

SHIFT+F5

SHIFT+F6

SHIFT+INS

DEL

DEL LINE

HOME

SHIFT+HOME

CLR LINE

CLR SCRN

PGUP

SHIFT+PGUP

PGDN

SHIFT+PGDN

LEFT

SHIFT+LEFT

RIGHT

SHIFT+RIGHT

SHIFT+UP

DOWN

SHIFT+DOWN

ESC

SHIFT+ESC

RETURN

SHIFT+ENTER

ENTER

SHIFT+ENTER

SHIFT+F1

Sequence

ESC

SOH

ESC

NAK

ACK

SUB

ESC

STX

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PC Key

SHIFT+F7

SHIFT+F8

SHIFT+F9

F10

SHIFT+F10

F11

SHIFT+F11

F12

SHIFT+F12

CTRL+F1

SHIFT+CTRL+F1

CTRL+F2

SHIFT+CTRL+F2

CTRL+F3

SHIFT+CTRL+F3

CTRL+F4

SHIFT+CTRL+F4

CTRL+F5

SHIFT+CTRL+F5

CTRL+F6

SHIFT+CTRL+F6

Terminal Key

SHIFT+F7

SHIFT+F8

SHIFT+F9

F10

SHIFT+F10

F11

SHIFT+F11

F12

SHIFT+F12

F11

SHIFT+F11

F12

SHIFT+F12

F13

SHIFT+F13

F14

SHIFT+F14

F15

SHIFT+F15

F16

SHIFT+F16

Sequence

STX

(

STX

)

STX

;

STX

;

STX

STX SPACE CR

3.3.1.5

Viewpoint 60 Graphic Character Table

The Viewpoint 60 Graphic Character Table defines the character code used for each of the linedrawing graphic characters used by Viewpoint 60 emulation.