TN3270e Server Manual

CRT Communication Protocol
TN3270e Server Manual—422923-003
5-5
Extended Highlighting in SNAX/XF Mode
last-params [1].<8:15>
is the double-byte character set. If the -k option is not selected, the TN3270e
server returns a 0 by default, indicating no double-byte character set. If the -k
option is selected, the TN3270e server returns a 3, indicating IBM MIXED.
Other SNAX/XF CRT SETMODE Procedures
Some SNAX/XF SETMODE procedures do not function in a TCP/IP environment or
with the TN3270e server. The following SNAX/XF CRT SETMODE calls produce an
FEINVALOP (2) error code, but a properly coded application should consider the
operation successful:
SETMODE 53
requests that you obtain SNA sense code.
SETMODE 54
requests that you obtain device address.
SETMODE 112
requests that you place a session in between brackets.
SETMODE 115
requests that you set and obtain SNA control request notification.
Extended Highlighting in SNAX/XF Mode
Once the TN3270e server is configured to run in SNAX/XF mode, Pathway
applications can display screen fields using extended highlighting. Extended
highlighting includes the screen attributes of blink, underline, and reverse video. If the
terminal can support extended highlighting display, Pathway sends these attributes to
client terminals connected by SNAX/XF. Pathway will not send extended highlighting
attributes to client terminals connected by AM3270.
Displaying fields with extended highlighting requires support from the client software at
your terminal. When a Pathway application needs to display fields using extended
highlighting, the Pathway TCP (Terminal Control Process) sends a READ PARTITION
QUERY data stream command to the client terminal. This command asks the client
program to return information about its characteristics, including whether or not it can
support extended highlighting. If the client program does not reply to this command,
the results can be unpredictable. Not all client software can display fields with
extended highlighting or handle the READ PARTITION QUERY command. Please
check your client software documentation before trying to use extended highlighting.