VT330/VT340 Programmer Pocket Guide

This pocket guide serves as a quick reference for programmers utilizing the control functions and commands of Digital Equipment Corporation's VT330 and VT340 terminals, specifically for accessing VT300 features. The document is divided into two main parts:

1. Text Programming: This section details character encoding (including various character sets like DEC Multinational, ISO Latin, and national replacements), keyboard functions (keypad, editing, function keys, 7-bit controls), terminal emulation modes (VT100, VT300), managing character sets (selection, designation, mapping, soft character sets), page memory settings, visual and line attributes, editing sequences, local editing, cursor movement and panning, and a wide array of keyboard, printing, and display control sequences. It also covers VT300 reports, session management, and VT52 mode.
2. Graphics Programming: This part focuses on programming for graphics, beginning with an introduction to ReGIS commands for screen control, writing, positioning, vector and curve drawing, and text manipulation. It further elaborates on load commands, macrographs, error reporting, polygon fill commands, and specifics of the 4010/4014 mode (including screen addressing, ASCII controls, escape sequences, and operating modes). Dedicated sections cover Sixel graphics data format and control, utilizing a mouse or tablet for input, and printing graphics.