DCS: VT220 Key mapping for Function and arrow keys for RF gun - Model Telxon PTC - 960 SL

Resolving The Problem

Basically there is a file called yntrsmvars.bin in DCS_BASE/jam/files. This is the binary representation of file yntrsmvars. This file defines which is the key file to use for the current TERM ( e.g.: currently on support server $SMBASE/files/yntrvt100keys.bin is setup as the file for vt100 ). Now this key file is binary representation of the ascii file which contains the key mapping.

So the steps involved are
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1. Create a new ascii keymap file for telxon and update the key mapping
2. Create a binary representation of the key file ( for this we need a utility provided by JAM which is available only on devp boxes)
3. Update yntrsmvars file to add mapping for the new TERM to the binary file created in previous steps
4. Create a binary representation of the smvars file ( for this also we need a utility provided by JAM which is available only on devp boxes)
5. Export the correct term when users log in to telxon. (The other users should still export vt100 or whatever key mapping they use)

Another issue is that yntrsmvars (default SMVARS file) does not have a link to yntrvt220keys.bin file. So the customer has 2 options
1. rename yntrvt220keys.bin to one of the files for which there is a link and set the corresponding SMTERM in WMSYantra/whmenu
2. Generate a new SMVARS file and create a binary for it. For this we will need to contact the engg or send the vars2bin.

The customer logs into Yantra application using the RFs, netterm(PC) and Xwindows. netterms can be configured to generate VT100 or VT220 keys. But I am not sure of xterm. If xterm cannot produce the VT220 keys, the customer will need to implement a change to the WMSYantra script to identify the machine from which the user is logged in and dynamically set the keystroke to expect, VT220 for RF and VT100 for the rest.(One way of implementing this is to keep a list of ips assigned to RFs in a file.Any time a user logs in, system will check if the request is from one of the ips in the file and set the correct keymap).

Binary files need to be placed in the $DCS_BASE/jam/files directory. These files are required by Yantra to understand the VT220 key strokes. I will also send a detailed mail on the environment variables to be exported etc.

Create the file required to enable the customer to use both VT220 and VT100 simultaneously.

The vt220 key map file to produce TAB on F1.

Steps to be followed to implement this below.

1. ftp the attached files to the yantra server (ensure that *.bin files are ftped in binary mode and others in ascii mode)
2. Copy the files to $DCS_BASE/jam/files
3. When login through the RF mode, export variable SMTERM to vt220 (export SMTERM=vt220)
4. When login from CRT or RF, ensure that the SMTERM to vt100

Contact Applications Support for the new binary and ascii files.
The keymap files can be found in their SupportAttachments/Internal/VT220KeyMappingsForTelxonPTC960SL_RF_Gun folder.

Below are the commands that the RF gun from TELXON is sending :
F1 = ^[ [11~
F2 = ^[ [12~
F3 = ^[ [13~
F4 = ^[ [14~
F5 = ^[ [15~
F6 = ^[ [17~
F7 = ^[ [18~
F8 = ^[ [19~
F9 = ^[ [20~
F10 = ^[ [21~
F11 = ^[ [23~
F12 = ^[ [24~
Cursor up = ^[ [A
Cursor down = ^[ [B
Cursor left = ^[ [D
Cursor right = ^[ [C
( ^[ = Escape )