==============================================================================

                  VUIMAGE(tm) (Version 3.31) (Shareware)
                GIF*/TIFF/PCX Format Picture Viewer/Printer
        Copyright (C) 1989-1992 Offe Enterprises. All rights reserved.
 
                                USERS MANUAL
 
 Offe Enterprises, 1163 E. Ogden Ave.  #705-131, Naperville, IL 60563  USA
          Tel: 708-357-6679  Fax: 708-357-6683  BBS: 708-357-6680

   ------------------------------------------------------------------------ 
  | At the end of this manual you can find a list of changes in this       |
  | version, a list of common problems and solutions, tips on getting the  |
  | best performance from the software, and a list of sources from where   |
  | the latest shareware version can usually be obtained.                  |
   ------------------------------------------------------------------------ 



   *******************************  NOTICE  ********************************
   *                                                                       *
   *    This program, and all supporting programs and documentation are    *
   *    provided "as is" without warranty of any kind, either expressed    *
   *    or implied, including but not limited to the implied warranties    *
   *    of merchantability and fitness for a particular purpose.  In no    *
   *    event will  Offe Enterprises  be liable  to you for any damages    *
   *    arising out of the use or  inability to use this program and/or    *
   *    all supporting programs and documentation.                         *
   *************************************************************************

*  GIF and "Graphics Interchange Format" are trademarks (tm) of Compuserve,
   Inc., an H&R block company.  PostScript is a trademark of Adobe Systems, Inc.
   VUIMAGE, VUIMAGE PLUS, TBG and SCRtoPS are trademarks of Offe Enterprises.

   All prices and other information are subject to change without notice.

==============================================================================

FEATURES
--------

Offe is proud to bring you our GIF/TIFF/PCX display/print software for the
IBM PC family.  Its main features are:

 *  Superfast display or print of:  
     - GIF, PCX and uncompressed bilevel/grayscale TIFF files
     - compressed bilevel TIFF files (compression type 
       CCITT G3-1D, CCITT Group 4 or Packbits) 
     - 8-bit palette uncompressed TIFF files

 *   Optional image preloading to conventional or extended memory

 *   Support for a wide variety of display types:
     - CGA, Hercules, EGA, MCGA, VGA, 6300, Tandy, 8514/A, SuperVGA
     - VESA SuperVGA driver for all SuperVGA cards that have VESA BIOS support.
       Supports the following VESA standard modes (if available in card):
        800x600x16, 1024x768x16, 1280x1024x16
        640x400x256, 640x480x256, 800x600x256, 1024x768x256, 1280x1024x256
     - driver for 320x400x256, 360x480x256 and 800x600x16 modes on 100% IBM VGA
       register compatibles 
     - excellent color rendition in all video modes
     - various dithering options for two-color video modes
     - automatic/manual video mode selection capability
     - display picture within a window on screen

 *  Print images
     - print entire image, set your own print size
     - print to laserjet and dot-matrix printers
     - seven dithering options

 *  Pre-scaling, Zoom, Pan and Auto-scale features
    - many image pre-scaling (scaling image before displaying it) options
      including various autoscale, no scale, and manual scale from 1% to 999%
      vertically and horizontally
    - Zoom in and Zoom out using the "+" and "-" keys
    - user adjustable Zoom factor
    - Panning: cursor keys move the screen window over different sections of
      picture
    - user adjustable pan amount
    - autoscale key to autoscale image after it has been displayed

 *  Color Control: adjust brightness, contrast etc. afer image is on screen

 *  User-friendly, multiple interfaces
    - menu-driven: select options and files to view via menus.  File(s) can
      be tagged or specified by file numbers.  When a list of files is 
      selected, move forward/backward through the list or continuously
      repeat the list.  List directory alphabetically, by date, by size or
      by order on disk and list in short, medium or long formats
    - commandline driven: specify options via commandline parameters
    - abort single picture or list of pictures in the middle
    - returns DOS errorlevel value (useful in batch files and when
      called as a sub-program by other programs)
    - user selectable menu screen colors
    - get quick picture info without displaying picture
    - show brief or detailed image information as each picture is displayed
    - autoselect file type (based on filename) or manual select file type

 *  GIF89a support: Supports plain text, graphics control, comment extensions,
    restore to background etc.

 *  Utilities: includes utility to convert interlaced GIFs to non-interlaced

 *  Low memory requirements:  can work with as little as 180K* of free memory 
    even on very large images

* GIF89a images that use "restore to previous" function need may need more
  memory for complete restoral to previous.  Also, the "image preload" feature
  uses additional conventional or extended memory.


==============================================================================

FOR REGISTERED USERS
--------------------

Registered users get VUIMAGE PLUS(tm) Version 3.31, our non-shareware version
of the program with the following added features:

- printed manual

- the ability to save the program configuration

- menus may be disabled and file (or files) to be shown may be specified from
  the command line (in this mode, the image may be left on the screen when
  the program ends).

- ability to display images by specifying a slideshow file (file containing
  names of images to display and other parameters).

- ability to specify the print options (printer type, print size, printer port
  etc.) from the command line 

- ability to invert images by pressing the "i" key after the picture has been 
  displayed on the screen 



REGISTRATION
------------

This version of the program is released as shareware. It is not free and is
not in the public domain.  Private, non-commercial users are requested to
register and support its continued development.  Registered users get
VUIMAGE PLUS(tm) Ver 3.31.  To register, please use the order form supplied
with this package, or send your name, address and phone number(s) with the
registration fee of US $40.00** (outside US, please add $5.00) to:

Offe Enterprises, 1163 E. Ogden Ave.  #705-131, Naperville, IL 60563  USA
Tel: (708)-357-6679,  Fax: (708)-357-6683

Any use of VUIMAGE(tm) in a commercial environment is illegal and is strictly
prohibited.  Commercial users should purchase VUIMAGE PLUS(tm), the
non-shareware version.  Volume discounts and site licenses are available for
VUIMAGE PLUS(tm).  Contact Offe Enterprises for customized versions.


DISTRIBUTION
------------

You may make copies of the program files for VUIMAGE(tm) and the documentation
VUIMG.TXT (this file) together and distribute them to others, upload to
bulletin boards etc. for non-commercial purposes. The program files should
not be distributed without the documentation file VUIMG.TXT.  None of the
files should be modified in any way.  


==============================================================================

 OTHER PROGRAMS AVAILABLE FROM OFFE ENTERPRISES:
-----------------------------------------------

   TBG(tm)     - TIFF black&white/grayscale image to GIF/TIFF black&white/
                 grayscale converter (can reduce large b&w images to smaller
                 grayscale ones for easier viewing, convert TIFF to GIF etc.).
                 Commandline options for non-interactive conversion.

   SCRtoPS(tm) - Dump text and graphics screens (CGA/EGA/VGA) to PostScript
                 printer or capture to Encapsulated PostScript file (including
                 line/box characters).  Requires only about 10K of resident
                 memory.

  Post-Screen(tm) -
               - This is a post-processing program for SCRtoPS(tm) that
                 allows conversion of foreground/background color information
                 on captured TEXT screens into different background shades of
                 of gray and different foreground thicknesses on the
                 PostScript output and is extremely useful for including
                 screen captures in printed manuals etc.

   See file PROGRAMS.TXT for more information on these programs.

==============================================================================

                               TABLE OF CONTENTS


1.  INSTALLATION AND USAGE

2.  PROGRAM CONFIGURATION

3.  THE MAIN MENU
    3.1  SELECTING THE FILE TYPE
    3.2  SETTING THE DISPLAY MODE
    3.3  DISPLAYING PICTURE FILES
    3.4  TIMEOUT
    3.5  ABORT PICTURE
    3.6  REPEATING LISTS (CONTINUOUS SLIDE SHOW MODE)
    3.7  SELECTING THE DISPLAY DIRECTORY
    3.8  DIRECTORY SORT
    3.9  IMAGE PRE-LOADING
    3.10 SCALING OF PICTURES
    3.11 TEXT SCREEN COLORS

4.  FUNCTIONS AVAILABLE WHEN A PICTURE IS FULLY ON-SCREEN
    4.1  ZOOMING
    4.2  PANNING
    4.3  BRIGHTNESS
    4.4  CONTRAST
    4.5  INVERTING THE IMAGE
    4.6  PRINTING
    4.7  PRINTING INTERLACED GIF FILES
    4.8  SUMMARY OF COMMANDS AVAILABLE WHEN A PICTURE IS
         FULLY ON-SCREEN

5.  COMMAND LINE OPTIONS

6.  DOS EXIT CODES (ERRORLEVEL)

7.  DISPLAY BOARDS and EXTENDED VIDEO MODES/DRIVERS

8.  MISCELLANEOUS
    8.1  SOME SOURCES WHERE THE LATEST SHAREWARE VERSION IS
         USUALLY AVAILABLE
    8.2  COMMON PROBLEMS AND SOLUTIONS
    8.3  TIPS ON OBTAINING MAXIMUM PERFORMANCE
    8.4  REVISION HISTORY


==============================================================================


1.  INSTALLATION AND USAGE
--------------------------

Note: Requires MS-DOS Version 2.0 or later and at least 180K of free memory.

1.  FLOPPY DISK  Copy all the files from the program disk to another floppy
                 disk.  Use this as your working disk - place this disk into
                 drive A:, type "A:" and press return.  Go to step 2.

    HARD DISK    Make a new subdirectory.  For example, if you are using
                 drive C: and the subdirectory name you want is \VUIMAGE, enter

                          c:
                          md \vuimage

                 Now make this subdirectory your current directory.  In our
                 example, enter

                          cd  \vuimage

                 Copy all the files from the program disk to this subdirectory.
                 Go to step 2.

2.  Now all the files are in the current drive/directory.  To start the program,
    at the DOS prompt, type the following and press return:

          vuimg       (for VUIMAGE(tm) shareware version)
          vuimgp      (for VUIMAGE PLUS(tm) non-shareware version)

    You will be placed in the main menu.  Also shown will be a list of files
    in the current directory that have the extension "GIF".  The current display
    mode will be displayed at the bottom left of the screen.  The main menu
    options are displayed at the bottom right of the screen.

    Press "Q" to quit back to DOS.  Go to step 3.

3.  You can execute the program any time by changing to the subdirectory that
    contains the program files and typing "vuimg" or "vuimgp" as applicable,
    as in step 2.  However, if you would like to execute the program from any
    directory, you should include the name of the directory containing the
    program files as part of your "PATH".  (The PATH is a list of directories
    that DOS will search when you type in a command.  Refer to your DOS manual
    for information on PATH and how to add a sub-directory to your PATH.)


==============================================================================

2.  PROGRAM CONFIGURATION
-------------------------

VUIMAGE PLUS(tm):
-----------------

    VUIMAGE PLUS(tm) users can configure the program by making selections
    through the various menus and/or through commandline options, and then
    saving the configuration using the "z" key within the Options menu. 
    A configuration file "vuimgp.cfg" will be created in the directory 
    that contains the program files (if you are using a version of DOS earlier
    than DOS 3.0, this file is created in the current directory instead and
    should be present in the current directory at the time the program is
    started).

    If you are using an extended driver, use the "-v" commandline option to
    select a driver as you start the program before saving the configuration. 
    Once it has been saved, the "-v" option does not have to be specified
    again.

    Commandline options can be used to override the saved configuration
    (see later section on commandline options) for the current session.


VUIMAGE(tm) (shareware version):
--------------------------------

    VUIMAGE(tm) shareware version users can configure the program using 
    "batch" files.  You can create a batch file by typing

          copy con: v.bat     <return>

    where "v.bat" is the name of the batch file.  Now enter the program
    name along with the drive and directory name.  For example,

          c:\vuimage\vuimg    <return>

    Then press <ctrl>-Z followed by a <return> to finish creating the batch
    file (you can also use an editor to create this file).  Now you can start
    the program by typing "v" and return.  The batch file need not be kept
    in the same subdirectory as the program files.  However, the sub-directory
    that it is kept in must be part of your "PATH".  (The PATH is a list of
    directories that DOS will search when you type in a command.  Refer to
    your DOS manual for information on PATH and how to add a sub-directory to
    your PATH).

    After you become familiar with the command line options of the program (see
    later section on command line options), you can re-create the batch file 
    and also specify the command line options that you normally prefer to use.
    This way you can "configure" the program to suit your needs.



==============================================================================

3.  THE MAIN MENU
-----------------

From the main menu, at the "File(s)" prompt, you can enter:

        - "t" to select the file type - GIF, TIFF, PCX or AUTO

        - "m" to change the display mode

        - "s" to change the scaling options, and the "image preload"
          options (conventional/extended memory)

        - "o" to change other user selectable options

        - "d" to select a different directory/different group of files

        - "q" or ESC to quit and go back to DOS.

        - a list of picture files to be displayed.  For example, enter

                3,1,5-7,17-14  <return>

           to display files 3,1,5,6,7,17,16,15,14 from the list (in that order).

        - One of the arrow keys to select files using the cursor keys.

          To display a single file, move the cursor bar to the file
          and press enter.  To display a list of files, move to each file
          and press the space bar to select (mark) the file.  Press enter to
          display the marked files or "/" to continuously repeat the list of
          files.  If there are too many files to fit on one screen, use the
          PgUp/PgDn keys to see other files.

          After moving the cursor to a specific file, you can press the
          "Insert" key to obtain quick information about the file.



==============================================================================

3.1  SELECTING THE FILE TYPE
----------------------------

The default file type is "AUTO".  To select TIFF, GIF or PCX explicitly,
press "t" at the main menu prompt.  You can also select the file type from
the command line using the "-T" option (for example, -TTIF will select TIFF -
see section on command line options).


3.2  SETTING THE DISPLAY MODE
-----------------------------

The program selects a video display mode appropriate for the video adapter
and the picture being displayed automatically.  The mode is chosen from the
CGA/Hercules/EGA/VGA modes present and any modes supported by any extended
mode driver that has been loaded (extended mode drivers are selected by the
command line option "-v" - see section "Display Boards and Extended
Modes/Drivers" for more details on extended modes).  SuperVGA modes are
extended modes.

If the user desires to select a particular video mode to display the picture
instead of the automatically selected mode, this can be done by pressing
"m" at the main menu prompt, going into the display mode menu and changing
the display mode.  An appropriate mode supported by your video display
board may be specified.  If any extended video mode drivers have been
loaded, the extended modes supported by these drivers are also listed.

Instead of using the menu, you can also specify the mode to be used from the
command line by using the "-m" option (for example, "-m7" will use the
EGA 640x350 16-color mode - see section on command line options).

There is also a "BIOS" mode that you can use for extended modes that are
unsupported.  Your display board will need to provide complete BIOS support.
Usually the BIOS mode is extremely slow and is useful for testing purposes
only.  

If you are using a video mode that has only 2 colors and you are viewing a
color or grayscale image, you can use dithering to improve the displayed 
picture.  Use the Options menu to select a type of dithering to be used 
for 2-color modes.  A suggested dither option for 2-color displays is 
3 (3x3).  To view interlaced files correctly when dithering is used, convert 
them to non-interlaced files by using the utility NINTLACE.EXE.  (See 
section on interlaced files later).

==============================================================================

3.3  DISPLAYING PICTURE FILES
-----------------------------

You can select one file or a list of files to view using one of the 
following ways:

Method 1:  From the main menu, enter the number of the file you wish to
           display and press return.  If you wish to display a sequence of
           files, you can enter a set of numbers, separated by commas:

           Example:  3,5 <return> will display file 3 followed by file 5. 

           You can enter a starting number and an ending number to display
           a list of files:

           Example:  2,5-7 <return> will display files 2, 5, 6 and 7.
           Example:  2,7-5 <return> will display files 2, 7, 6 and 5.

           After you enter a list of files (or one file) and press return,
           the picture(s) are displayed in sequence.

Method 2:  Alternately, you can use the cursor keys to move the cursor bar
           (initially placed on file 1) to the file you wish to view, and
           press enter to view the file.  To select a list of files,
           "mark" each file by moving the cursor bar to it and then
           pressing the space bar.  When you press return, the files
           will be displayed in sequence.

       *** Methods 3 and 4 are available on VUIMAGE PLUS(tm) only. ***

Method 3:  You can specify the name(s) of the file(s) to be viewed from the 
           commandline using the "-C" option.  See the section on commandline 
           options.  The filename may contain wildcard characters "*" and "?".

Method 4:  You can specify from the commandline a slideshow file created by
           the user that contains a list of files to be viewed using
           the "-S" option.  See the section on commandline options.  


3.4  TIMEOUT
------------

Each picture is displayed for a default time of 20 seconds.  Pressing a
return, however, will force the display to end and move on to the next
picture or back to the main menu.  Pressing the backspace key will move back
to the previous picture if a list of pictures is being viewed.

The timeout value can be changed from the "Options" menu or from the command
line using the "-t" option - allowed values are between 0 and 43199 seconds
(about 12 hours).  Setting the value to 43200 causes the timeout to be
disabled.  In this case the picture will continue to be displayed
until another key is pressed.  Also, if the "@" key is pressed after drawing 
the picture on screen, the timeout is disabled.

If you use a screen grabber program to capture the displayed image and
you are not successful, use of the "@" key may help.


==============================================================================

3.5  ABORT PICTURE
------------------

Pressing the ESC key while a picture is being drawn aborts that picture.
You can abort a list of pictures by pressing the ESC key twice.


3.6  REPEATING LISTS ( CONTINUOUS SLIDE SHOW MODE )
---------------------------------------------------

When you enter a list of pictures in the main menu, if you end the list with
the forward slash ("/") instead of a <return>, the list will be continuously
repeated.  To abort this repeated display, press the ESC key twice in quick
succession.

In a slide show file, one can specify a "label" within the slideshow file
and then use a "goto label" statement to create loops.  Slideshow files are
supported only by VUIMAGE PLUS(tm).


3.7  SELECTING THE DISPLAY DIRECTORY
------------------------------------

From the main menu, press "d" to change the display directory (the directory
containing the picture files).  The files in this directory will be listed
when you return to the main menu.

If only a directory name is specified, all files that have an extension of
GIF or TIF (depending on file type selected) in that directory will be
displayed.  If you want to list other files also, enter an appropriate string
to be matched.

Examples:        To list                                   Enter

all files in the current directory                      *.*<return>

all files with extension GIF in the current directory   *.gif<return>

all files with extension GIF or TIF (depending on       pics<return>
  file type) in the subdirectory "pics" of the
  current directory

all files with extension GIF or TIF (depending on       \picdir<return>
  file type) in the subdirectory "picdir" of the
  root directory

all files in the subdirectory "picdir" of the root      \picdir\*.*<return>
        directory.

You can also set the display directory from the command line using the -d
option.


==============================================================================

3.8  DIRECTORY SORT
-------------------

By default, the directory is sorted alphabetically.  If you press the "d" key 
from the main menu, you can choose between an alphabetical sort, sort by date,
sort by file size or no sort.  You can also select between a short listing with
only file names and a long listing with file dates and sizes in addition.

Only the first 1020 files will be sorted in a directory.  All others are
displayed unsorted.


3.9  IMAGE PRE-LOADING
----------------------

By default, the software will attempt to "pre-load" the image into memory
before displaying it.  Pre-loaded images usually speed up Zooming and Panning
significantly.  In slideshow mode, this also allows rapid switching of the
screen from one image to the next.  Since the entire image has to be 
pre-loaded before displaying, there is usually a waiting period before the
image appears on the screen; hence in some cases you may wish to disable 
pre-loading.  Image pre-loading options may be selected from the "Scale" menu.

Images are pre-loaded into conventional memory by default, but pre-loading
into extended memory may be specified by the user.  An extended memory
driver that conforms to the XMS specification needs to be present.

If there is insufficient memory, the image is displayed without pre-loading. 

Image pre-loading requires memory beyond the minimum requirements of 180K.


3.10  SCALING OF PICTURES
-------------------------

There are many scaling options. The default scaling is 1:1 i.e. no scaling.
You can choose to set the scales manually.  You can also have the program
perform auto-scaling.  The "auto-scale full screen" option makes the picture
"fit" the screen horizontally and vertically.  You can also auto-scale
with the constraint that the horizontal and vertical scales should be equal.

Use the "Scale" menu to change the scaling options.  You can also select
the scaling method from the command line using the -s option.


3.11 TEXT SCREEN COLORS
-----------------------

You can change the text screen colors used by going into the "Options"
menu and pressing "C - Screen Colors ".  Use the left/right arrow keys 
to change the foreground color and the up/down arrow keys to change the 
background color. (Alternately, you can use the "f" and "F" keys for
foreground and the "b" and "B" keys for background).

Select the colors you like.  Note the numbers shown that corresponds to each
of the colors that you selected - these numbers can be used with the "-cd",
"-co" and the "-cg" command line options to automatically select your
favourite colors when the program is started.


==============================================================================

4.  FUNCTIONS AVAILABLE WHEN A PICTURE IS FULLY ON-SCREEN
---------------------------------------------------------

4.1  ZOOMING
------------

Once a picture is displayed on the screen, you can zoom in using the "+" key
and zoom out using the "-" key.  To autoscale the image to fit the screen
exactly, use the "a" key.  To reset Zoom/Autoscale, use the "<ctrl>-a" key.

The zoom factor may be set from the "Options" menu.


4.2  PANNING
------------

Once a picture is displayed on the screen, you can move the viewing window
around the picture by the use of the cursor keypad (the degree of movement
created by "normal panning" keys can be selected from the "Options" menu):

            (Number lock and Scroll Lock should be disabled)

          Normal Panning (user selectable degree of movement)

        down arrow  (or "d")       move down  
        right arrow (or "r")       move right 
        up   arrow  (or "u")       move up    
        left arrow  (or "l")       move left  

                         Coarse panning

  shift-down  arrow (or "2")       move down  one screen
  shift-right arrow (or "6")       move right one screen
  shift-up    arrow (or "8")       move up    one screen
  shift-left  arrow (or "4")       move left  one screen
 
  shift-"Home"      (or "7")       move to top left corner of image
  shift-"End"       (or "1")       move to bottom left corner of image
  shift-"PgUp"      (or "9")       move to top right corner of image
  shift-"PgDn"      (or "3")       move to bottom right corner of image

                           Fine Panning

        Upper case      "U"        move up one pixel
        Upper case      "D"        move down one pixel
        Upper case      "L"        move left one pixel
        Upper case      "R"        move right one pixel


==============================================================================

4.3  BRIGHTNESS
---------------

Once a picture is displayed on the screen, you can increase the brightness
by pressing the "b" key and reduce the brightness by pressing the "B" key.
You can also set an overall brightness adjustment from the Options menu.

To reset the brightness, press "<ctrl>-b".


4.4  CONTRAST
-------------

Once a picture is displayed on the screen, you can adjust the contrast
by pressing the "g" key and the "G" key.  You can also set an overall
contrast adjustment from the Options menu.

To reset the contrast, press "<ctrl>-g".


4.5  INVERTING THE IMAGE
------------------------
Once a picture is displayed on the screen, you can invert the image by
pressing the "i" key (available in VUIMAGE PLUS only).  This is useful
for black and white or grayscale images.

Image inversion can be selected during startup by using the "-iiy"
commandline option.



==============================================================================

4.6  PRINTING
-------------

Once an image is displayed on the screen, you can print that image by
pressing the "p" key.  Before printing, make sure that you have set up
the printer port and selected the correct printer by going into the
Options menu.

The entire image is printed.  Any brightness and contrast adjustments you have
made will affect the print output.  The output to 2-color printers (most
printers) can be dithered so as to obtain a better print-out.  You can choose
between no dithering, 2x2, 3x3, 4x2, 4x4, 6x6 or 8x4 dithering by going
into the Options menu.  You may wish to experiment with the dithering
options to obtain the best print image.

For fairly high resolution printers (200x200 dpi or greater), 6x6 or 8x4 is
suggested for paint-type images and scanned images with large number of
colors or grayscales. 

For line art, either no dithering or 2x2 is suggested.  For scanned images
with low number of grayscales, 2x2, 3x3 or 4x2 is suggested.

To obtain the best results, it suggested that the various print dither options
be experimented with.

From the Options menu, you can also set the desired size of the print-out.

You can specify "lpt1:","lpt2:","lpt3:","com1:","com2:" or a filename
for the printer port.



4.7  PRINTING INTERLACED GIF FILES
----------------------------------

Interlaced GIF files are the files that contain images that are not drawn
top to bottom, but are drawn in four passes over the image area.  On each
pass, some lines are skipped that are subsequently filled by a following pass.

To display interlaced images using dithering in 2-color modes and also to
print interlaced images, the image must be converted to a non-interlaced image.
This can be done using the utility NINTLACE.EXE by typing:

          nintlace input.gif output.gif

where input.gif is the interlaced GIF file and output.gif is the non-
interlaced GIF file to be created.

(If you use the "-n" option for NINTLACE.EXE as in "nintlace -n x.gif y.gif",
 the program does not do this conversion, but will eliminate all unnencessary
 characters from the end of the file that may have been added as a result of
 using communications protocols like XMODEM or YMODEM to transfer files).


==============================================================================

4.8  SUMMARY OF COMMANDS AVAILABLE WHEN A PICTURE IS FULLY ON-SCREEN
--------------------------------------------------------------------
(Disable Scroll-Lock and Num-Lock)

@            Disable timeout, freeze pic on screen till the enter key is pressed

+, -         Zoom In, Zoom Out
a, ctrl-a    Auto-scale current pic to fit screen, reset scales

arrow keys, d,r,u,l         Normal pan (down, right, up, left)
shift arrow keys, 2,6,8,4   Coarse pan
D,R,U,L                     Fine pan (one pixel)
shift-Home, 7               Pan to top left corner
shift-End,  1               Pan to bottom left corner
shift-PgUp, 9               Pan to top right corner
shift-PgDn, 3               Pan to bottom right corner

b, B, ctrl-b Increase brightness, decrease brightness, reset brightness
g, G, ctrl-g Decrease contrast, increase contrast, reset contrast
f            cycle through dithers (if being dithered)
i            invert image (VUIMAGE PLUS(tm) only)

p            Print image
delete       Re-draw picture
insert       Show picture info

PgDn         Move to next picture in list
PgUp         Move to previous picture in list
escape       Abort the picture/abort the list of pictures



==============================================================================

5.0  COMMAND LINE OPTIONS
-------------------------

Most of the options may be set from the command line instead going through
a menu.  For example, to start the program with the mode option set to 9
and the scaling option set to 3, enter:

        vuimg  -m9 -s3

The options are specified following "vuimg" or "vuimgp" as applicable, before
pressing a return.  The available command line options are listed below:

  -Tfiletype    where filetype is "GIF",  "TIF",  "PCX" or "AUTO".

                Example:   -TTIF       (display tiff files)

  -vdrivername  where drivername is the name of the extended mode driver
                appropriate for your board.  If the program files are not in
                the current directory, then the drive and subdirectory must
                also be specified.

                Example (load ATI VGAWonder driver):

                           -vdativ            (program files in current dir)
                           -vc:\vuimage\dativ (program files in c:\vuimage)

  -mmodeindex   where modeindex is the number you would enter if you were
                to go into the "Mode" menu and make a selection.

                Example:   -m9          (set 320x200x256 mode)

  -mdmodeindex  where modeindex is the mode to be forced disabled for autoselect
  -memodeindex  where modeindex is the mode to be forced enabled for autoselect
  -mamodeindex  where modeindex is the mode to be not forced

                Example:   -md11        (force disable mode 11 for autoselect)
                           -me7         (force enable mode 7 for autoselect)
                           -ma7         (let program decide automatically)

  -sscaleindex  where scaleindex is the number you would enter if you were
                to go into the Scale menu (part of the "Options" menu) and
                make a selection.

                Example:   -s3          (set autoscale full screen)

  -sxhscale     where hscale is the horizontal scale value (1% to 999%).
                This option should be used only if manual scaling is selected.

                Example:   -sx200       (set horizontal scale to 200%)

  -syvscale     where vscale is the vertical scale value (1% to 999%).
                This option should be used only if manual scaling is selected.

                Example:   -sy50        (set vertical scale to 50%)

==============================================================================

  -ddirectory   where directory is a directory name (or file matching string)
                that you would enter when you go into the Dir menu.

  -Dssorttype   where "sorttype" is 0 for no sort, 1 for alphabetical sort,
                2 for sort by date and 3 for sort by file size.

                Example:   -Ds2         (sort by date)

  -Dllisttype   where "listtype" is 0 for short, 1 for long directory listing.

                Example:   -Dl1         (show long directory listing)

  -Dddateform   where "dateform" is 0 for month-day-year format, 1 for
                day-month-year format.

                Example:   -Dd1         (DD-MM-YY format)

  -ttimeout     where timeout is the number of seconds to display each picture.

                Example:   -t40         (set timeout to 40 seconds)

  -by           enables the beep at the end of a picture
  -bn           disables the beep at the end of the picture

                Example:   -bn          (disable beep)

  -Bbrightness  where brightness is the brightness value (100 is nominal)

                Example:   -B120                (set brightness to 120%)

  -Bccontrast  where contrast is the contrast value (100 is nominal)

                Example:   -Bc80                (set contrast to 80)

  -cddircolor   where dircolor is the color number for the filenames 
  -cofncolor          fncolor  is the color number for the file numbers 
  -cmmodcolor         modcolor is the color number for the display mode
  -cggencolor         gencolor is the color number for general text
                To find the color numbers for the colors of your choice, first
                go into the "Options" menu and select the colors that you like.
                The corresponding color numbers are also displayed.

                Example:   -cd78    (filenames in yellow on a red background)
                           -co10    (filenumbers in bright green on black)
                           -cm4     (video mode in red on black)
                           -cg14    (general text in yellow on black)

  -fddithertype where dithertype is the number you would enter if you were to
                go into the Options menu and choose the display dither type.

                Example:   -fd3     (dither 2-color displays using 3x3 matrix)

  -fpdithertype where dithertype is the number you would enter if you were to
                go into the Options menu and choose the printer dither type.

                Example:   -fp4     (dither 2-color printers using 4x4 matrix)


==============================================================================

  -iby          show brief info (-iby) as pic is displayed (filename, image
  -ibn          size),  do not show brief info (-ibn)

  -idy          show detailed info (-idy) as pic is displayed,
  -idn          do not show detailed info (-idn)

  -iiy          invert the image (-iiy), do not invert the image (-iin).
  -iin          (really useful for only black and white/grayscale images)

  -igy          show GIF89a Comments (-igy), do not show GIF89a Comments (-ign)
  -ign          


  -woxoffsetx   where "offsetx" is the horizontal offset of window,
  -woyoffsety         "offsety" is the vertical offset of window,
  -wxsizex            "sizex" is the horizontal window size,
  -wysizey        and "sizey" is the vertical window size
                of a window on the screen to display the picture in.
                All dimensions are in number of pixels.

                Example:   -wox100 -woy50 -wx240 -wy160  (display in a 
                                window of size 240x160, offset by 100x50)

  -wcy          center image within display window
  -wcn          place image at top left corner of display window

  -ul0          unit is inches.
  -ul1          unit is cm.

  -q            Exit from the program (useful in slideshow files)



==============================================================================

(*** The following options are available only in VUIMAGE PLUS(tm) ***)

  -pprinternum  where printernum is the number you would enter if you were
                to go into the Options menu and choose a printer.

                Example:   -p1      (select EPSON FX80/100 printer)

  -pddevicename where devicename is the printer device (lpt1:, lpt2:, lpt3:,
                com1:, com2: or filename).

                Example:   -pdlpt1:      (send output to lpt1:)
                           -pdvuimg.prn  (send output to file vuimg.prn)

  -pxwidth      where width is the width of the printed image in 1/100 inches

                Example:   -px904   (print image width=9.04 inches)

  -pyheight     where height is the height of the printed image in 1/100 inches

                Example:   -py1200  (print image height=12.00 inches)

  -pDy          disable the print capability
  -pDn          enable  the print capability

  -C            disables the menus.  If you use this option, you must also
  -Cp           specify a filename to be displayed including the pathname.
                This should be the last option entered on the command line.
                The filename may contain wild card characters ? and * and 
                should be the last parameter.  Any directory name entered
                with the -d option will be ignored.  If the "-Cp" option is
                used instead of the "-C", the image is also printed.

                Examples:   -C somefile.gif
                            -C \pics\*.gif
                            -Cp image.tif

  -L            leave the last image on the screen when the program ends.
                Valid only when the -C option is used.  Useful when called
                as a sub-program by another program.

  -l            do not reset the video mode or clear the screen between images.
                Valid only when the -C option is used.  This option is useful
                only if the images being viewed are close enough in size,
                resolution and colors that the video mode and the palette will
                be the same for the images.  Not recommnded for use unless
                this is the case.  It is recommended that an appropriate
                video mode should be specified instead of using auto-select.

==============================================================================

  -S            specify the name of a slideshow file created by the user
                using a text editor that contains a list of files to be shown.
                This file may also contain other commandline options.
                For example, you can enter

                           vuimgp -S slidshow.1

                where the file "slidshow.1" contains

                      --------------------------
                     | -m0 -s3                  | <- startup parameters
                     | -C file1.gif             | <- show file1.gif
                     | -m8 -C file2.gif         | <- show file2.gif
                     | -s1 -m0 -C file3.gif     | <- show file3.gif
                     | -q                       |
                      --------------------------

                The lines within the file are executed in sequence.
                PgDn and PgUp keys may be used to go forwards and 
                backwards in the list of images during display.
                The "-Cp" and "-S" options should not be used within this file.
                However, it is possible to create effects such as multiple
                images on one screen by using the "-l" option along with the 
                windowing options "-wx, -wy, -wox, -woy".  A specific video
                mode should be selected using the "-m" option if this is
                attempted.

  -zfzoomfactor where "zoomfactor" is the Zoom Factor in percentage.

                Example:   -zf200   (sets Zoom to 200%)

  -zppanpercent where "panpercent" is the percentage (of the screen) to move
                when one of the "normal panning" keys (down,up,right and left
                arrow) is pressed.

                Example:   -zp4     (move by 4%)

  -edry         the default mode when editing (changing selections) is replace
  -edrn         the default mode when editing (changing selections) is insert

  -MX           pre-load into extended memory (XMS)
  -MC           pre-load into conventional memory
  -MN           do not pre-load


==============================================================================

6.0  DOS EXIT CODES (ERRORLEVEL)
--------------------------------

The return codes generated by the program that may be tested in a batch
file are:

0  - no error
1  - command line option error
2  - the -C option was used without specifying a file
3  - file not found or invalid filename
12 - slideshow file not specified
13 - Error opening the slideshow file
14 - commnd line option error within the slideshow file


==============================================================================

7.  DISPLAY BOARDS and EXTENDED VIDEO MODES/DRIVERS
---------------------------------------------------

If the program does not work with your graphics display board, try loading any 
software drivers (BIOS emulators, int 10h drivers, RAM BIOS drivers) that came
with the display board that may be needed.  Refer to the instructions that 
come with your graphics board.

Some graphics display boards support even higher resolutions than standard VGA,
for example, 640x480 in 256 colors and 800x600 in 16 colors.  These are
sometimes referred to as SuperVGA modes.  Additional drivers that support
these "extended modes" are included with the program.  These drivers have
filenames with the extension ".VDR" and are listed later in this section.
They can be loaded using the "-v" command line option (see section on command
line options).

Typically, extended modes are dependent on your type of graphics card.
Refer to your graphics card manual to see what extended modes are supported.
Only VGA type extended modes with either 16 or 256 colors out of a palette
of 262,144 colors are supported by the extended mode drivers.  Check the
list of extended mode drivers at the end of this section to see which driver
is suitable for use with your card.  Some of the modes listed may not be
available in your specific card.  The unavailable modes can be AND SHOULD BE
disabled by using the "-md" commandline option, or by using the "Mode menu",
so that the Auto-select videomode function does not try to use these modes.
Saving the configuration in VUIMAGE PLUS(tm) will also save this information
if it was specified on the commandline as the program is started.

However, there is a SuperVGA standard known as the VESA SuperVGA standard.
Many or most of the SuperVGA cards now support this standard.  If your
card supports this standard, then you can take advantage of the VESA driver
(DVESA.VDR) that comes with the program.  Even if there is a separate driver
that supports your card, WE RECOMMEND that you use the VESA driver instead
if your card supports the VESA standard.  In order for your card to support
the VESA standard, you may need to load a device driver or TSR that comes
with your card (through the CONFIG.SYS or AUTOEXEC.BAT file).  Refer to the
documentation that comes with your card (in printed form or disk file form).

If you are not using any extended drivers, you may still be able to display
in an extended mode if your BIOS for the board will support this.  Not all
boards come with BIOS that support the extended modes completely.  Installing
any RAM BIOS drivers that come with your board may help.  Display done
through the BIOS is usually extremely slow. 

To use the BIOS supported extended modes, you need to know the mode number,
the no. of columns, the no. of rows, and the no. of colors for the mode.
Refer to the manual for your graphics card.  Make sure to try only modes
that are actually available on your board.

If you have a plain VGA card with no SuperVGA modes, you may still be able
to get higher resolutions (320x400x256, 360x480x256, 800x600x16, 400x600x256)
using the DNVGA driver.

==============================================================================

Extended Mode Drivers (SuperVGA drivers) included:
-------------------------------------------------

Note: Some of the modes listed may not be available in your specific card.
      These should be disabled (see section above).  Additional drivers may be
      available from Offe Enterprises.

    If your display board is:                   Driver
    ------------------------                    -------

    Any board that supports the VESA SuperVGA   DVESA
    standard and has VESA BIOS installed

    8514/A AI Compatibles (AI must be loaded)   D8514AI

    8514/A 100% register compatibles            D8514R

    Orchid Farenheit 1280 (S3 86C911 Chipset)   DS3911

        (Many of the following cards come with VESA BIOS support in the form
        of a "TSR" that can be loaded into memory.  In such cases, this TSR
        should be loaded, and the "DVESA" driver specified to VUIMAGE(tm)
        instead of the driver listed below.

        8514/A Register Compatibles             D8514R
        Ahead Systems VGA Wizard                DAHEADB
        AST VGA cards                           DPVGA
        ATI Prism Elite                         DTRID
        ATI VGAWonder                           DATIV
        ATI Graphics Ultra (SuperVGA modes)     DATIV, D8514R or D8514AI**
        ATI Graphics Vantage (SuperVGA modes)   DATIV, D8514R or D8514AI**
        AT&T VDC600                             DPVGA
        BOCA w/Tseng 4000 Chipset               DTSNG4
        Cardinal 600 VGA                        DCHT
        Chips & Technologies                    DCHT
        Everex EV673                            DE673
        Everex EV678                            DE678
        Genoa 6400                              DORCH
        Genoa 5400                              DORCH
        Genoa 5300                              DORCH
        Hercules Graphics Station               DHGS
        IMTEC                                   DTRID
        LOGIX                                   DTRID
        MAXXON                                  DTRID
        Northgate Pro                           DV7VRAM
        Oak Technologies                        DOAK
        Orchid Farenheit 1280                   DS3911
        Orchid ProDesigner                      DORCH
        Orchid ProDesigner II (Tseng 4000)      DTSNG4
        Paradise VGA Professional               DPVGA
        Paradise Image Sharpener (NVGA-P1D)     DVESA
        Sigma VGA cards                         DORCH
        Standard IBM VGA & register compatibles
                with multisync monitors         DNVGA
        Older STB VGA cards                     DORCH
        STB PowerGraph (Tseng 4000)             DSTBPG, DVESA or D8514AI**
        Tandy 1000 (320x200x16)                 DTANDY
        Trident Video cards                     DTRID
        Video-7 Fastwrite                       DV7FW
        Video-7 1024i                           DV71024
        Video-7 VRAM                            DV7VRAM

==============================================================================

        Other Chips&Technolgies chipset cards   DCHT
        Other Paradise VGA cards                DPVGA
        Other Trident chipset cards             DTRID
        Other Tseng 3000 Chipset cards          DORCH
        Other Tseng 4000 Chipset cards          DTSNG4
        Oak Technologies Chipset cards          DOAK
        NCR Chipset cards                       DNCR
        Cirrus Chipset cards                    DCIRR
        S3 86C911 Chipset cards                 DS3911
        IBM PS/2 25SX/35/40/56/57               DVESA*

     * the VESA driver (TSR) that comes with the board, or available from
       the manufacturer, must be loaded.
    ** the AI driver that comes with the board must be loaded.

    All extended modes supported by the driver may not be available on your
    board.  Some may simply be unavailable, some may require more memory.
    To see which extended modes supported by the driver are available on
    your graphics card, refer to the manual that comes with the card.
    MODES SUPPORTED BY THE DRIVER THAT ARE NOT AVAILABLE IN YOUR CARD
    SHOULD BE DISABLED USING THE "-md" COMMANDLINE OPTION.

    All extended modes available on a board may not be supported by the driver.


Extended Modes Supported by the Drivers (mode numbers in decimal and hex)

DVESA
        Mode 256  (100h)         640 x  400 x 256 colors
        Mode 257  (101h)         640 x  480 x 256 colors
        Mode 258  (102h)         800 x  600 x  16 colors
        Mode 259  (103h)         800 x  600 x 256 colors
        Mode 260  (104h)        1024 x  768 x  16 colors
        Mode 261  (105h)        1024 x  768 x 256 colors
        Mode 262  (106h)        1280 x 1024 x  16 colors
        Mode 263  (107h)        1280 x 1024 x 256 colors

D8514AI (requires AI to be loaded via "hdiload")
D8514R  (8514/A 100% register compatibles)

                                640 x 480 x  16 colors  ( 512K)
                               1024 x 768 x  16 colors  ( 512K)
                                640 x 480 x 256 colors  (1 MEG)
                               1024 x 768 x 256 colors  (1 MEG)

DAHEADB
        Mode 106 (6Ah)           800 x 600 x  16 colors
        Mode 113 (71h)           800 x 600 x  16 colors
        Mode 116 (74h)          1024 x 768 x  16 colors
        Mode  96 (60h)           640 x 400 x 256 colors
        Mode  97 (61h)           640 x 480 x 256 colors
        Mode  98 (62h)           800 x 600 x 256 colors
        Mode  99 (63h)          1024 x 768 x 256 colors

==============================================================================


DATIV
        Mode  84 (54h)           800 x 600 x  16 colors 
        Mode  97 (61h)           640 x 400 x 256 colors
        Mode  98 (62h)           640 x 480 x 256 colors
        Mode  99 (63h)           800 x 600 x 256 colors
        Mode 101 (65h)          1024 x 768 x  16 colors
        Mode  85 (55h)          1024 x 768 x  16 colors

DCHT
        Mode 112 (70h)           800 x 600 x  16 colors 
        Mode 114 (72h)          1024 x 768 x  16 colors
        Mode 120 (78h)           640 x 400 x 256 colors
        Mode 121 (79h)           640 x 480 x 256 colors
        Mode 128 (7bh)           800 x 600 x 256 colors

DCIRR
        Mode  99 (63h)           720 x 540 x  16 colors 
        Mode 100 (64h)           800 x 600 x  16 colors 
        Mode 106 (6Ah)           800 x 600 x  16 colors 
        Mode  97 (61h)           640 x 400 x  16 colors (GD5320)
        Mode  98 (62h)           640 x 450 x  16 colors (GD5320)
        Mode 112 (70h)           360 x 480 x 256 colors (GD5320)
        Mode 113 (71h)           528 x 400 x 256 colors (GD5320)
        Mode 114 (72h)           528 x 480 x 256 colors (GD5320)
        Mode 116 (74h)           320 x 240 x 256 colors (GD5320)
        Mode 117 (75h)           640 x 400 x 256 colors (GD5320)

DE673
        Submode 19 (13h)        640 x 350 x 256 colors
        Submode 20 (14h)        640 x 400 x 256 colors
        Submode 21 (15h)        512 x 480 x 256 colors

DE678
        Submode 49 (31h)        640 x 400 x 256 colors
        Submode 50 (32h)        512 x 480 x 256 colors
        Submode 77 (4dh)        640 x 480 x 256 colors
        Submode 78 (4eh)        800 x 600 x 256 colors

DHGS
                                640 x 480 x 256 colors
                                800 x 600 x 256 colors
                               1024 x 768 x 256 colors
DNCR
        Mode  88 (58h)           800 x 600 x  16 colors
        Mode  93 (5Dh)          1024 x 768 x  16 colors
        Mode  94 (5Eh)           640 x 400 x 256 colors
        Mode  95 (5Fh)           640 x 480 x 256 colors
        Mode  92 (5Ch)           800 x 600 x 256 colors

DNVGA
        -------                  320 x 400 x 256 colors
        -------                  360 x 480 x 256 colors
        -------                  800 x 600 x  16 colors
        -------                  400 x 600 x 256 colors

==============================================================================

DOAK
        Mode  82 (52h)           800 x 600 x  16 colors
        Mode  83 (53h)           640 x 480 x 256 colors
        Mode  84 (54h)           800 x 600 x 256 colors
        Mode  86 (56h)          1024 x 768 x  16 colors

DORCH
        Mode  41 (29h)           800 x 600 x  16 colors
        Mode  45 (2Dh)           640 x 350 x 256 colors
        Mode  46 (2Eh)           640 x 480 x 256 colors
        Mode  47 (2Fh)           720 x 512 x 256 colors
        Mode  48 (30h)           800 x 600 x 256 colors
        Mode  55 (37h)          1024 x 768 x  16 colors

DPVGA
        Mode  88 (58h)           800 x 600 x  16 colors
        Mode  94 (5Eh)           640 x 400 x 256 colors
        Mode  95 (5Fh)           640 x 480 x 256 colors

DV7FW
        Mode  98 (62h)           800 x 600 x  16 colors
        Mode 102 (66h)           640 x 400 x 256 colors
        Mode 103 (67h)           640 x 480 x 256 colors

DTANDY
        Mode  9  (09h)           320 x 200 x  16 colors

DTRID
        Mode  91 (5Bh)           800 x 600 x  16 colors
        Mode  92 (5Ch)           640 x 400 x 256 colors
        Mode  93 (5Dh)           640 x 480 x 256 colors
        Mode  94 (5Eh)           800 x 600 x 256 colors
        Mode  95 (5Fh)          1024 x 768 x  16 colors
        Mode  98 (62h)          1024 x 768 x 256 colors

DTSNG4, DSTBPG
        Mode  41 (29h)           800 x 600 x  16  colors
        Mode  55 (37h)          1024 x 768 x  16  colors
        Mode  45 (2dh)           640 x 350 x 256  colors
        Mode  47 (2fh)           640 x 400 x 256  colors (DTSNG4)
        Mode 120 (78h)           640 x 400 x 256  colors (DSTBPG)
        Mode  46 (2eh)           640 x 480 x 256  colors
        Mode  48 (30h)           800 x 600 x 256  colors
        Mode  56 (38h)          1024 x 768 x 256  colors

DV71024
        Mode  98 (62h)           800 x 600 x  16 colors
        Mode 101 (65h)          1024 x 768 x  16 colors
        Mode 102 (66h)           640 x 400 x 256 colors
        Mode 103 (67h)           640 x 480 x 256 colors

DV7VRAM
        Mode  98 (62h)           800 x 600 x  16 colors
        Mode 101 (65h)          1024 x 768 x  16 colors
        Mode 102 (66h)           640 x 400 x 256 colors
        Mode 103 (67h)           640 x 480 x 256 colors
        Mode 105 (69h)           800 x 600 x 256 colors


==============================================================================

8.  MISCELLANEOUS
-----------------

8.1  SOME SOURCES WHERE THE LATEST SHAREWARE VERSION IS USUALLY AVAILABLE
-------------------------------------------------------------------------

  1. The Offe Enterprises BBS - 708-357-6680 Files Section
                 - Filename VUIMGxyz.* where xyz is the version number.

  2. The Wheaton File Exchange - Files section
                 - USA-708-462-1508,  USA-708-462-1509
                 - Filename VUIMGxyz.* where xyz is the version number.

  3. Compuserve  - PICS (GRAPHICS SUPPORT) forum, library 3.
                 - Enter "browse vuim*.*" in library 3 to list.

  4. EXEC-PC BBS - "Free download area for all callers" sub-section of the 
                   Files section of the BBS
                 - (414)-789-4210
                 - Filename VUIMGxyz.* where xyz is the version number.


8.2  COMMON PROBLEMS AND SOLUTIONS
----------------------------------

1.  While attempting to display a picture,

           a) the screen dims, or
           b) the screen changes color, or
           c) nothing happens

    and the picture is not displayed.  After some time, a beep is heard
    and if the return key is pressed, the main menu returns.

    The most likely cause of the problem is that a video mode that is not
    available in your video adapter is being used.  This usually happens
    when the "autoselect video mode" feature is on, and an extended video
    driver is specified.
          
    To solve the problem, go to the "Mode" menu from the main menu, and
    determine what modes are NOT available by following this procedure.

        a) Select each of the modes marked by an asterisk manually
        b) Try to display a picture

    The modes that do not work should be disabled using the "-md"
    commandline option (see section on "DISPLAY BOARDS and EXTENDED 
    VIDEO MODES/DRIVERS" for more information).  VUIMAGE PLUS(tm)
    users need to specify this through the commandline option only once
    if the configuration is subsequently saved.


==============================================================================

2.  How do I print ?

    Go to the Options menu and select the printer type and printer port,
    and the print dither type.  Once a picture has been displayed on the
    screen, press the "p" key.  For more information, read the sub-section
    "PRINTING".

3.  The printed image appears in four bands of different heights.

    Most likely, you are trying to print an interlaced GIF file.  Read the
    sub-section titled "PRINTING INTERLACED GIF FILES".

4.  My printed image quality could be better.

    You may be using a print dither inappropriate for the image.  See 
    sub-section on "PRINTING".

5.  I would like to see a specific feature added to the program.

    You can write or call Offe Enterprises.  Features requested by larger
    number of registered users are given higher priority.  (Note, however,
    that no guarantee can be given that the feature will be incorporated
    in a future release.)

6.  While starting up the program, I get an error message about "STACK"
    such as "Stack Overflow"

    This could be due to two reasons.  There may not be sufficient memory
    to run the program, or, you could have a large amount of memory used
    up by "Environment Variables".  Some shell replacements for the file
    "COMMAND.COM", as well as COMMAND.COM files modified to specifically
    do this, allow a large amount of memory to be used for environment
    variables.  Often it is easy to reduce the memory taken up this
    way by the use of batch files which create only temporary environment
    variables (the variables are set at the beginning of the batch file,
    and destroyed at the end of the batch file).

    Note:  Environment Variables are variables that are set using the "SET"
    command, such as "SET HOME=C:\DATADIR\MYNAME".


==============================================================================

8.3  TIPS ON OBTAINING MAXIMUM PERFORMANCE
------------------------------------------

1.  You can obtain higher quality images on the screen by the use of
    SuperVGA, 8514/A or other high resolution graphics board for which
    a driver is included (see section on DISPLAY BOARDS and EXTENDED 
    VIDEO MODES/DRIVERS).

    A board that provides VESA SuperVGA compatibility (such a board comes
    with VESA Bios support) or 8514/A AI compatibility (such a board comes
    with an AI driver) may give the best performance with VUIMAGE(tm).

2.  If your board has VESA Bios or 8514/A AI compatibility, use it in the
    VESA SuperVGA or 8514/A AI compatible mode (follow instructions that came
    with your board on how to do this), and specify either the "dvesa" or 
    "d8514ai" driver as appropriate EVEN IF one of the other drivers will work.

3.  Make sure to disable all SuperVGA video modes that are provided by a
    driver but are unavailable in your system.  Also, if two video modes
    are available in the same resolution but one is 16-color and the other
    is 256-color (example:  800x600x16 and 800x600x256), disable the
    16-color mode.

4.  Install extended memory in the machine, if possible, and specify to
    VUIMAGE(tm) that extended memory is to be used (this can be done from
    the "Scale" menu).  More extended memory will be required for larger
    images.  At least two megabytes is suggested.

5.  Select a "pan percentage" from the Options menu that is suitable for
    your system, if you "pan" over images.

6.  When printing, choose a "print dither" option that is suitable for the
    image and the printer.



==============================================================================

8.4  REVISION HISTORY
---------------------

Additions/Changes from Version 3.30 to Version 3.31:
  - display is faster in the EGA & VGA 2-color and 16-color modes
  - handles compressed bilevel TIFF files (compression type CCITT G3-1D, 
    CCITT Group 4 or Packbits) 
  - the way GIF89a comments are displayed has changed - the comments are
    now all shown at the end of the image.  To prevent the comments from
    being displayed, use the "-ign" commandline option.

Additions/Changes from Version 3.20 to Version 3.30:
  - added the ability to "preload" the image into conventional or
    Extended memory (XMS) for quicker Zoom/Pan.  Also results in quick
    switch from one picture to the next during slideshows.
  - the "dvesa" driver now provides added capabilities that improves
    scrolling in SuperVGA modes.  If one of the "dvesa" or the "d8514ai" 
    drivers will work for you, their use is recommended.
  - The degree of movement (pan) obtained when one of the normal panning 
    keys (down, up, left and right arrows) is user selectable from the
    "Options" menu and can also be specified by the "-zp" commandline option.
  - added commandline Options "-edry" and "-edrn" (sets the default edit mode)
  - added Landscape print mode for HP Laserjets.
  - increased printing speed, and added ability to specify top and left
    margins on HP Laserjets.  Added commandline options "-pt" and "-pl"
    for this purpose.
  - added ability to perform "loop"s within a slideshow file.
  - increased maximum width of images that can be handled
  - "center image on screen" is now the default
  - expands tabs when displaying text files

Additions/Changes from Version 3.15 to Version 3.20:
  - added ability to view Text files (ASCII)
  - added ability to select filetype automatically based on the filename
  - supports multiple quick pans (arrow keys pressed in quick succession)
  - "normal pan" now moves by 1/4 of screen for GIF/PCX instead of 1/2 screen
  - "coarse pan" now moves by 1/2 of screen instead of full screen
  - CHANGED MODE MENU: now allows enabling/disabling modes from within the
    menu (for auto-select video mode)
  - displays "extended video driver" name within the mode menu
  - added pre-scaling options 7 and 8
  - added 8514/A drivers: 8514AI for AI compatibles (requires AI to be loaded),
                          8514R for register compatibles
  - added scaling options 7 and 8
  - "-wcy", "-wcn" and "-q" commandline options added
  - supports additional PCX format variations
  - VUIMAGE PLUS(tm) now supports multi-image TIFF files

Additions/Changes from Version 3.11 to Version 3.15:
  - PgDn and PgUp keys now move to the next/previous file in list
    (use shift-PgUp/shift-PgDn/shift-Home/shift-End to move to corners of pic)
  - fine panning keys "U","D","R","L" added (pans by one pixel)
  - added help key ("h") while image is on screen
  - added user programmable Zoom Factor (101% to 400%)
  - added ability to center image on screen (if image is smaller than screen)
  - Faster multiple zooms (+/- keys pressed in quick succession)
  - added DNCR driver, DCIRR driver
  - timeout value of 43200 now disables timeout, waits for user to press enter
  - "-Bc" commandline option added for contrast
  - "-ul1", "-ul0" commandline options added to select cm/inch units
  - "-C" option accepts multiple filenames in addition to wildcard characters
  - "-pDy" commandline option added to disable print (VUIMAGE PLUS(tm) only)
  - memory requirement has increased to 180K

Additions/Changes from Version 2.96 to Version 3.11:
  - VUIMAGE(tm) now supports PCX
  - VUIMAGE PLUS(tm) now supports a slideshow file facility ("-S" option)
  - improved printing speed 
  - can display pictures in a window on the screen (commandline options
    added: -wx, -wy, -wox, -woy)
  - added EPSON LQ2500 360x180 dpi mode, 24 -pin, and IBM Proprinter X24
  - added TIFF Group IV support to VUIMAGE PLUS(tm)
  - added 8x4 and 4x2 dither options (deleted 5x5 dither option)
  - VUIMAGE PLUS can display TIFF 24bit rgb triplet uncompressed images
    in 256 color mode
  - added Hercules Graphics Station driver.
  - added Ahead Systems VGA Wizard Deluxe Driver (VGA-V-5000B chipset)
  - added 1024x768x256 mode to DV7VRAM driver 
  - now prints message "Printing.." while printing
  - handles more TIFF Files
  - added ability to read GIF files with 128 byte header (MAC->IBM format)
  - increased max print width at 300 dpi.


