Multitech MultiModem ISI ISI3334/4, Быстрый старт

Страница: 33 / 48

Chapter 2 - Installation
33
Multi_View Utility Installation
This section guides you through the Multi_View Utility for SCO and UNIXWare systems. During the installation of
the ISI3334 drivers, you will also install the Multi_View utility for multiple-page terminals. This section profiles the
Multi_View utility and gives you the necessary information to create a Multi_View information file.
Once installed, Multi_View can be invoked by typing the following command:
Multi_View [ options]
The Multi_View initializes the multiple-page capability of terminals with multiple pages of memory. While
Multi_View works even on a dumb terminal (without multiple pages of memory), your terminal(s) should have
multiple pages of memory and be capable of retaining the position of the cursor on each page to get the proper
effect.
Most state-of-the-art terminals have multiple pages of memory, which allow them to switch between sessions.
Each page of memory available on the terminal allows its user to establish another session on the host. The
multiscreen capability of the terminal stores the screen information and the cursor position for each session to a
different page of memory.
Multi_View allows the host to process the session-switching hot keys and issue the necessary escape sequence
to the terminal so that the appropriate page is displayed on screen. Multi_View treats each new screen opened by
the user as a virtual screen and maintains mapping between each virtual screen created and a page of memory on
the terminal. The number of virtual screens and pages of memory available are dependent on the terminal
emulation, the particular terminal being used, and the number of pseudo devices created by the system
administrator during installation.
In an ideal case, there can be as many virtual screens as there are pages of memory on the terminal. If there are
more virtual screens specified than there are pages of memory, then two virtual screens may be mapped to a single
page of memory, in which case, both sessions’ screens are displayed when that page of memory is recalled.
Once Multi_View is successfully able to read the terminal description and initialize the terminal, it comes up with a
message displaying the hot-key sequence for “help”.
The following hot keys are defined:
•
Go to n
th
virtual screen
• Create new virtual screen
• Switch between current and previous screens
• Provides help on hot keys
• Quits Multi_View with an exit status of zero
• Ends Multi_View with a non-zero exit status
To define your own terminal capability database, see the Description File Format section below.