Table of Contents
Advertisement
Escape Codes
INTRODUCTION
___ Appendix A
Escape codes are a device which allows terminal operations to be executed from a program.
When a terminal receives an escape code from an executing program, it performs the operation
specified in the escape code.
Escape codes consist of most of the operations performable at the terminal using the non-
alphanumeric keyboard keys. Such operations include control of the following:
Cursor location, sensing and selection
Display and workspaces (next page, insert line, etc)
Margins and tabs
Display enhancements
User-defined keys
Terminal modes (auto linefeed, local echo, etc)
Alternate character set selection
Graphics status request
Terminal status request
Terminal self test and reset
Peripheral devices
All escape codes begin with the escape character
ttEc"
(produced with the. key), followed by
the body of the escape code. The body of the code can consist of one or more of the keyboard
letters and symbols. Most escape codes can also be performed by entering them from the
keyboard. However, if the terminal is in Remote mode, the escape code will be executed only if
the host computer is echoing the terminal input (the
ttLocal Echo"
field of the Terminal
Configuration menu set to
No).
NOTE: If the body of an escape code consists of more than one character and ends in a letter,
THE TERMINATING LETTER MUST BE CAPITALIZED; otherwise, the escape code
will not be recognized as such. For example,
Ec&dA
(not
Ec&da).
A-l
Advertisement
Table of Contents
