B

DECTPU Terminal Support

This appendix lists the terminals that support screen-oriented editing and describes how differences among these terminals affect the way DECTPU performs. This appendix also describes how you can run DECTPU on terminals that do not support screen-oriented editing. Finally, this appendix tells you how DECTPU manages wrapping and how you can modify that.

B.1 Using Screen-Oriented Editing on Supported Terminals

DECTPU supports screen-oriented editing only on terminals that respond to ANSI control functions and that operate in ANSI mode.

DECTPU screen-oriented editing is designed to optimize the features available with the Compaq VT400, VT300, and VT200 families of terminals and the Compaq VT100 family of terminals. DECTPU does not support screen-oriented editing on Compaq VT52-compatible terminals. Optimum DECTPU performance is achieved on the VT300-series, VT200-series, and VT100-series terminals. Some of the high-performance characteristics of DECTPU may not be apparent on the terminals listed in Table B–1 for the reasons stated.

Table B–1

Terminal Behavior That Affects DECTPU’s Performance

 

 

Terminal

Characteristic

 

 

VT102

Slow autorepeat rate

VT240

Slow autorepeat rate

 

Slower scrolling region setup time than the VT220.

GIGI

One form of scrolling region (DECTPU repaints screen, rather than use

 

this scrolling mechanism)

 

Variable autorepeat rate (cursor keys pick up speed when used repeatedly)

 

 

By default, your DECTPU session runs with the screen management file

TPU$CCTSHR.EXE. To check your terminal setting, enter the following command at the command prompt:

$ SHOW TERMINAL

B.1.1 Terminal Settings on OpenVMS Systems That Affect DECTPU

The following settings may affect the behavior of DECTPU, depending on the terminal that you use.

DECTPU Terminal Support B–1

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Compaq AA-PWCBD-TE manual Using Screen-Oriented Editing on Supported Terminals, Terminal Characteristic
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