screen.conf file
Since the VT100 protocol is character based, it has no built in mechanism for notifying the TRS that host output has ended and the application is ready for input. Creating the screen.conf file allows the TRS to quickly process host output by eliminating the time it spends waiting after host output ends.
The TRS uses the screen.conf file to determine the end of host transmission. The TRS checks every screen sent from the host against the screens you define in screen.conf. Each time the TRS recognizes a complete host screen, it allows the transaction to continue.
The TRS searches each host screen for one of the keywords in screen.conf. When it finds the keyword on the host screen, it then searches for the end of the screen. When it encounters the end of the screen, host output has ended so the TRS allows the transaction to continue. As an added checking mechanism, the TRS can also check for the beginning of the screen to ensure that it is passing along the correct screen.
Screen.conf must reside in the /u/ivr/3270 directory.
Screen.conf should contain the definitions of every screen the TRS will encounter - one definition per line. The order of the lines does not matter since the TRS checks every screen against all the definitions in screen.conf. Figure
