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READ.ME
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1988-09-28
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Q V T
A DEC VT220 Emulation Program
For IBM PC Compatible Computers
Version 3.14
QVT is a program for IBM PC's and compatibles which fully
emulates the DEC VT series of terminals, including the VT52,
VT100/102, and VT220. In addition to terminal emulation,
QVT also allows the user to perform file transfers using
the Kermit, Xmodem, Ymodem, and Zmodem protocols, and offers
conveniences such as auto-dial and auto-login.
Though it may be used as a general-purpose PC communications
program, QVT excels when used to carry on interactive sessions
with host computers which require the use of DEC terminals,
such as the DEC VAX. In this context, QVT provides high per-
formance, extremely rigorous emulation, and convenient mapping
of the DEC keyboard to the PC keyboard.
QVT will run on all IBM Personal Computers and PS/2's. All IBM
display systems are supported, including EGA, MCGA, and VGA.
Installation
------------
The files included in this package are:
QVT_PC.EXE the QVT executable
QVT.HLP an on-line help file
DEFAULT.VT a model configuration file
We recommend that a directory be created on your hard drive
where these files can be placed. If you wish to use QVT from
anywhere on your hard drive with no loss of convenience, you
should create an environment variable 'VT_DIR', and assign
to it the name of that directory. This 'SET' command should
be included in your AUTOEXEC.BAT file.
User Interface
--------------
The QVT user interface is simple and consistent. All commands
(with two minor exceptions) are accessed through a group of
pull-down menus; the headings of these menus are displayed
in the menu bar across the top of the screen. To invoke a
menu, press the <Alt> key together with the first letter of
the menu. At the left side of the menu bar is the '■' symbol;
this is the 'System' menu, and is invoked with the combination
<Alt-X>.
After a pull-down menu has been invoked, you may select one
of its options by moving the highlight bar to the desired
item, then pressing the <Enter> key. If you wish to erase a
menu without selecting any of its items, press the <Esc> key.
Below is a summary of QVT's commands:
'System' Menu (Invoke with <Alt-X>:
Exit Terminate QVT, break phone connection
Suspend Terminate QVT, preserve phone connection
DOS Run a copy of COMMAND.COM within QVT
Help Get help on a QVT function
'File' Menu (Invoke with <Alt-F>
Kermit Send Transmit files using Kermit
Kermit Receive Receive files using Kermit
Xmodem Send Transmit a file using Xmodem
Xmodem Receive Receive a file using Xmodem
Ymodem Send Transmit files using Ymodem
Ymodem Receive Receive files using Ymodem
Zmodem Send Transmit files using Zmodem
Zmodem Receive Receive files using Zmodem
Text Upload Transmit text data without protocol
Capture Data Save all incoming data on disk
Screen Image Save screen image on disk
'Settings' Menu (Invoke with <Alt-S>
Terminal Modify QVT's keyboard and display parameters
Communications Modify QVT's communications parameters
Function Keys Define programmable function keys
Make Config Save current settings in a disk file
Load Config Load a config file from disk
'Modem' Menu (Invoke with <Alt-M>
Dial Dial the number of the current system
Script Execute the current script file
Hangup Break the modem connection
Number Choose a phone number from a list
The following keyboard commands are also available:
<Alt-H> Invoke 'Help' menu
<Alt-K> Display keyboard map
<Alt-L> Turns the QVT status line on and off
<Alt-P> Turns auto-print mode on and off
Configuring QVT
---------------
To change QVT's operating parameters, perform the following
procedure:
1. Invoke the 'Settings' menu, then select the 'Terminal'
or 'Communications' option.
2. When these options are selected, a new popup window will
be displayed which shows a portion of QVT's current operating
values.
3. To change one of these values, use the arrow keys to move
the cursor to the desired item, then repeatedly press the
<GreyPlus> key to step through the available values.
4. When all displayed values are as you want them, press the
<Esc> key to erase the window, then press <Esc> again to
erase the 'Settings' menu.
The sample config file, DEFAULT.VT, includes comments which
briefly explain all of QVT's configurable parameters.
DEFAULT.VT is a plain ASCII text file, and may be printed or
viewed with any standard text editor or browser.
YMODEM Compatibility
--------------------
Some BBS's which claim to support the YMODEM file transfer
protocol do not in fact provide YMODEM as defined by its
originator, Chuck Forsberg. What these BBS's call 'YMODEM'
is actually 'XMODEM-1K', which is simply the XMODEM protocol
using 1024-byte blocks.
QVT, while it supports both XMODEM-1K and YMODEM, reserves
the term 'YMODEM' to refer strictly to Forsberg's YMODEM
protocol. If you have trouble using QVT to perform transfers
from or to a BBS with YMODEM, you should try XMODEM instead,
and select the 'Large' packet size when performing uploads
(QVT will adapt to large packets automatically when downloading
with XMODEM).
ZMODEM
------
As of version 2.90, QVT has built-in support for the ZMODEM
file transfer protocol. Use of Omen Technology's 'DSZ' program
is not required.
New Script Commands
-------------------
The following commands have been added to QVT's script
language as of version 3.0: 'dial', 'hangup', 'if_err_goto',
'ksend', 'krecv', 'xsend', 'xrecv', and 'sleepuntil'. When
taken as a whole, these new commands provide the QVT user
with the ability to perform delayed, unattended file transfers,
and to execute logins of unusual complexity.
Color
-----
QVT now includes the ability to customize screen colors.
This is done via the 'color=' and 'bold=' statements in the
config file. Available choices (other than white) are blue, green,
and brown.
These color selections can also be made from the 'Terminal
configuration screen.
Keyboard Mapping
----------------
This version of QVT is designed for use with the 83-key PC
keyboard. The keys are mapped as follows:
DEC IBM
--- ---
PF1 - PF4 F1 - F4
- (minus) GreyMinus
, (comma) * (keypad)
Enter GreyPlus
HoldScreen Ctrl-F1
PrintScreen Shift-PrtSc
Setup (no key, use menu)
Data/Talk Not Supported
Break F5
F6 - F10 F6 - F10
F11 - F20 Shift-F1 - Shift-F20
Help NumLock
Do ScrollLock
The following mappings are effective when "NumLock" is OFF:
Arrows Arrows (numeric keypad)
Find Home
InsertHere Ins
Remove Del
Select End
PrevScreen PgUp
NextScreen PgDn
The following mappings are effective when QVT is in VT100 mode:
Left Arrow F7
Right Arrow F8
Up Arrow F9
Down Arrow F10
Note 1: since the <NumLock> key is used as a regular data key,
the combination <Alt-NumLock> is used to toggle "NumLock" state.
Note 2: if this version of QVT is used on a PS/2 Model 30, the
mapping of the <NumLock> and <ScrollLock> keys is inoperative.
This means that Note 1 does not apply in this situation.
Registration Information
------------------------
QVT is a shareware product. When you register your copy, you
will receive the latest version of the program, a copy of
the complete user manual, and access to our support services.
You will also be eligible to receive free upgrades on request
for a period of one year.
When you register, you may specify that you wish to receive
one of the alternate versions of QVT described in the next
section.
The registration fee for QVT is $30, payable to:
QPC Software
P.O. Box 226
Penfield, NY 14526
Versions of QVT for AT and Enhanced Keyboards
---------------------------------------------
The version of QVT included here is NOT a demo version. It
is fully functional and in no way crippled. It is, however,
specifically intended for use on machines which are equipped
with the original 83-key PC keyboard. It does not take advan-
tage of the additional keys which are available on the AT
and Enhanced keyboards.
Versions of QVT which are optimized for use with the AT and
Enhanced keyboards may be purchased from QPC for the price of
$30. You may request one of these versions when you send in
your registration fee. A package including executables for
all three keyboard styles is available for $45.
QVT for Windows
---------------
QVT also exists in a version for Microsoft Windows, versions
1.0x and 2.03. This version takes full advantage of the Windows
graphical environment to provide a degree of emulation which
is unobtainable with text mode video display. Advanced
VT220 features supported include 132 columns, double-wide and
double-high characters, Special Graphics and Multinational
character sets, and smooth scrolling. In addition, due to the
multi-tasking capabilities of the Windows environment, file
transfers can be carried out in the background. As with the
regular DOS version, all three IBM keyboards are supported.
The Windows version may be purchased from QPC for the price of
$50.
QVT for the Macintosh
---------------------
QVT also exists in a version for the Apple Macintosh. It runs
on the Mac Plus, SE, and II, and supports all three keyboards,
including the Extended keyboard. Like the Windows version, the
Mac version supports all of the advanced video capabilities
of the VT terminals, as well as all of the file transfer
capabilities of the MS-DOS version. It also includes some
special features, such as the ability to move the host cursor
using the mouse, the ability to create Mac menus which can be
used to control host programs in a natural 'Mac-like' way, and
support for the 'MacBinary' file transfer protocol.
The Macintosh version may be purchased from QPC for $50.
Corporate Purchase Plans
------------------------
For institutional customers, volume-purchase and site-license
plans are available. Write for our price list and discount
schedule.
Thank you for your interest in QVT!