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- VuePrint User's Guide
- Version 1.1
- Copyright (c) 1994 Edward B. Hamrick
- All Rights Reserved
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- 1.0 Introduction
-
- VuePrint is a program that lets you display and print graphics
- files that use the GIF, JPEG, and BMP graphics formats. VuePrint
- supports all graphics displays and printers that operate with the
- MicroSoft Windows 3.1 operating environment, using a 386 or 486
- microprocessor.
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- The two key features of VuePrint are speed and ease of use.
- VuePrint is more than twice as fast as most other JPEG viewers, and is
- able to scale images to full-screen more than five times as fast as
- other viewers. VuePrint will scale images to fill a window
- automatically, without distorting the image shape. While VuePrint has
- dozens of features, all are integrated in an easy to use menu system.
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- Most printers are only capable of displaying an array of black
- (or sometimes colored) dots. However, many graphics files contain
- images with up to 256 different colors. VuePrint uses a very fast
- error-dispersion algorithm (also called a dithering or half-toning
- algorithm) to print the image in the graphics file. This error
- dispersion algorithm takes advantage of the number of colors that a
- printer supports.
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- One of the main design goals of VuePrint was to make it quick and
- inexpensive to download. The size of the file VUEPRINT.ZIP is about
- 70,000 bytes, which can be downloaded in about 5 minutes at 2400 baud.
- This costs less than $1.00. Other programs with comparable
- functionality take up to ten times as long to download. In order to
- keep the size of the file small, this User's Guide is deliberately
- brief and limited to explaining those features of VuePrint which can't
- be discovered by exploring the various menus.
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- 2.0 Prerequisites
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- In order to use VuePrint, you will need a personal computer that
- is capable of running Microsoft Windows version 3.1 or higher. You
- will also need a 386 or 486 microprocessor.
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- VuePrint is distributed via CompuServe as shareware, and may be
- evaluated for 15 days without charge. If you decide you want to
- register VuePrint, type "GO SWREG" and follow the instructions for
- registering VuePrint. You can also send e-mail to
- 71470.3236@compuserve.com to request a mailing address to send the
- $35.00 registration fee. The reason the mailing address isn't
- included is that shareware tends to be distributed through channels
- that result in an average 1 year time lag between initial release and
- registration.
-
- When you register VuePrint, you'll receive assistance via e-mail
- with any problems you may encounter. You'll also receive a Serial
- Number which enables VuePrint's capabilities past the 15 day
- evaluation period.
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- VuePrint is a shareware product like most other shareware
- software packages. The copyright holder allows the unlimited non-
- commercial distribution of the software, and a trial period during
- which the software may be evaluated at no cost. However, the reality
- is that 99.9% of the shareware that people choose to use after the
- trial period is never paid for.
-
- VuePrint is different from most shareware in that it has a simple
- technique for discouraging unlicensed use after the 15 day trial
- period. Most shareware programs simply state that the program may not
- be used after the trial period without registration. Since this
- technique is ineffective, VuePrint simply overlays the display and
- printout with a checkerboard pattern after the trial period is over.
- When you register VuePrint, you'll receive a Serial Number that will
- remove the checkerboard overlay, and re-enable the full use of
- VuePrint. However, it is still possible to evaluate the speed,
- functionality, and usability of VuePrint after the 15 day trial period
- even with the checkerboard overlay.
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- 3.0 Installing and Running VuePrint
-
- To install VuePrint, put the file VUEPRINT.EXE in a directory
- that's convenient for you. Then use the Windows Program Manager's
- File->New menu item to install a new program item named VuePrint. To
- run VuePrint, just double-click on the VuePrint Icon.
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- All commands are accessible through the menu bar. Each command
- has a short-cut key which consists of a single keystroke. In addition
- to the short-cut keys documented in the menu bar, the arrow keys move
- the image when it is zoomed in. The arrow keys along with the shift-
- key move the image one full screen at a time.
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- Pressing the left-hand mouse button causes the image to zoom in
- by a factor of two at the point the mouse was located. Pressing the
- right-hand mouse button allows you to move the image around when it is
- zoomed in.
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- One feature that's a little bit subtle is the ability to convert
- JPEG files to GIF files. If you check the JPEG Option "Write GIF",
- every time you view a JPEG file, a GIF file will be written at the
- same time. For instance, if you display XYZ.JPG, you'll find a file
- XYZ.GIF in the same directory.
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- 4.0 Bug Reports and Enhancement Requests
-
- If you have problems running VuePrint, or have an idea for
- enhancing VuePrint, please send e-mail to Ed Hamrick on CompuServe at
- 71470,3236. You can also send e-mail from the Internet to
- 71470.3236@compuserve.com.
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- TRADEMARKS
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- GIF, Graphics Interchange Format, and CompuServe are trademarks of
- CompuServe, Inc., an H&R Block Company.
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- Microsoft is a registered trademark and Windows is a trademark of
- Microsoft Corporation.
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- ACKNOWLEDGEMENTS
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- VuePrint is based in part on the work of the Independent JPEG Group.
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