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- FractalSave Screen Saver, Shareware version 1.0
- Copyright (c) 1991 by James H. Price
-
-
- This file tells you how to use the FractalSave screen saver program. To
- print a hard copy of the file, enter the following at a DOS prompt:
-
- TYPE FSV_READ.ME > PRN
-
- NOTE ON SHAREWARE:
-
- This is a shareware program, it is not free or public domain
- software. You are encouraged to try it, without charge, for a period of
- 30 days. If you continue to use it beyond the trial perios, you must
- register it. Please be honest about this.
-
- You're encouraged to distribute the program freely as long as it's
- not altered in any way, is distributed with this documentation, and if
- no charge is made for the program. (Reasonable distribution fees to
- cover mailing or diskette costs are perfectly okay with me.)
-
- INTRODUCTION:
-
- FractalSave is a TSR (terminate and stay resident) screen saver
- utility based on the popular FractalWeave shareware program. When
- loaded in memory, FractalSave monitors the keyboard and mouse and "pops
- down" after a predetermined period of no activity. This prevents
- possible damage to your video monitor from "burn-in" due to having a
- fixed image written to your screen for prolonged periods.
-
- When it pops down, FractalSave displays a colorful, incredibly
- intricate, and constantly changing screen image. An unlimited number of
- different images can be displayed, depending on the image file selected
- when the program is loaded. Custom image files can be generated using
- the FractalWeave program (version 2.0 or later), another shareware
- product by the same author.
-
- HARDWARE REQUIREMENTS:
-
- FractalSave requires an IBM PC or compatible computer. Monitors of
- all types are supported. Displaying FractalWeave image files requires
- an EGA or VGA color monitor with at least 256K of video memory. On
- other types of monitors a text-based color or monochrome display is
- used. The shareware version of FractalSave requires approximately 19k
- of memory when loaded in resident mode. A hard disk is recommended, but
- not required.
-
- WHAT'S ON THE DISK:
-
- The distribution disk or ZIP file should contain the files listed
- below.
-
- FSAVE.EXE The screen saver program itself
- DEMO00.WVE Sample EGA image file
- DEMO01.WVE ditto
- DEMO02.WVE ditto
- DEMO03.WVE Sample VGA image file
- FSV_READ.ME This document
-
-
- INSTALLATION:
-
- As a convenience, copy FSAVE and the image (*.WVE) files to a
- directory on your PATH statement, otherwise you'll have to specify the
- full path when start the program.
-
- If you want to run the program from a floppy diskette, make a backup
- copy of the original files and place the backup disk in a safe place.
-
- NOTE TO FLOPPY DISK USERS: When FractalSave pops down, it takes a
- snapshot of the current screen and saves it to a temporary file in the
- current directory. When you press a key to return to your program,
- FractalSave reads the screen information from the disk, then deletes the
- file. With a hard disk, the time it takes to save and restore the
- information from disk is negligible, particularly if you're using a disk
- cache. With a floppy disk, however, you might notice a small delay.
-
- FractalSave can be loaded automatically via your AUTOEXEC.BAT file.
- It can also be loaded into "high memory" if your have the appropriate
- hardware and software on your system. See your DOS documentation for
- details.
-
- RUNNING THE PROGRAM:
-
- There are a number of adjustable parameters which you can set from
- the command line to tailor the program to your own preferences. For a
- quick summary, type FSAVE /h at a DOS prompt.
-
- To load the program with the default parameters, just type FSAVE at
- a DOS prompt. The program will load itself into memory, and pop down
- after 5 minutes of no screen activity.
-
- To change the default settings, enter
-
- FSAVE [/option(value)] [/option(value)] ...
-
- Here the "/" tells the program a parameter is coming; "option"
- specifies which parameter is being adjusted, and "(value)" is the new
- value to set. For example:
-
- FSAVE /d30 /fdemo01.wve
-
- tells the program to set the default delay to 30 seconds, and to use the
- image file "demo01.wve". The available parameters and their legal
- ranges are discussed below.
-
-
- COMMAND LINE PARAMETERS:
-
- Remember, you can get a synopsis of the available parameters, their
- legal and default values, and the command line syntax by typing FSAVE /h
- at the DOS prompt.
-
- Any number of parameters may be used, in any order. In case of a
- conflict, the value specified last will be used. You may substitue a
- "-" in place of the "/" if you prefer.
-
- /u This unloads the program from memory, or deactivates it if
- it can't be safely unloaded.
-
- /n This runs the program without keeping it in memory. It's
- useful when you're trying to adjust the program setting, or
- simply want to view the FractalWeave images.
-
- /s This adjusts the speed at which the "fractal ball" moves
- around the screen. Larger numbers gives slower speeds. The
- default value is zero; you might want to increase it if you
- have a fast machine, or prefer a leisurely display.
-
- The /s parameter also affects the text mode display; in this
- case by slowing down the rate at which the colored boxes are
- written to the screen. The default value for text is 16.
-
- /t This parameter affects the rate at which the palette is
- changed in the graphics display. It has no effect on the
- text display. Valid range is 0 - 60. Zero specifies NO
- change, while values from 1 - 60 specify a value in seconds.
- The default value is 4.
-
- /f Specifies which FractalWeave image file to load. The
- default is "demo00.wve". If a path is not specified, the
- program searches the PATH specified in your AUTOEXEC.BAT
- file. If the file is still not found, the program aborts
- and returns the message "Couldn't open image file." Example:
- " FSAVE /fc:\util\mywve.wve ".
-
- If you wish, you can use the /f switch with no filename to
- force the text display. You might wish to do this if you
- use a program which writes to multiple text pages (see
- below).
-
-
- QUIRKS and INCOMPATIBILITIES:
-
- 1) FractalSave will not pop down when a graphics program is running
- in the foreground.
-
- This is by design. Swapping a graphics screen to disk is very
- slow; furthermore, (and primarily) a majority of graphics
- programs (including Windows 3.0) exhibit the behavior discussed
- in (3) below.
-
- 2) FractalSave should be run in text mode when used with a program
- that writes to multiple text pages.
-
- FractalSave saves and restores only the foreground screen. If
- the foreground program writes to more than one page of text, the
- information on subsequent pages is lost when FractalSave enters
- a graphics mode. In such a case, use the "/f" switch by itself
- to force text mode. (I don't know of any programs which
- actually do this; if you do, please let me know. It's an easy
- modification for the next version.)
-
- 3) FractalSave (along with other TSRs) is incompatible with programs
- which intercept the system timer or keyboard interrupts and
- don't pass them along.
-
- In the first case, FractalWeave never finds out that it's time
- to pop down, and doesn't.
-
- In the second case, FractalWeave pops down, and then waits
- patiently for a keystroke which gets intercepted and never
- arrives. This gives the appearance of "hanging".
-
- To the credit of programmers everywhere, I don't know of any
- text-based program which exhibits such pathological behavior.
-
- ********
- LATE NEWS: I spoke too soon. The new text editor included with DOS 5.0
- is not fully compatible with FractalSave, apparently due to keyboard
- conflicts similar to those just discussed. Use them together with
- caution, if at all.
- ********
-
- ABOUT THE PROGRAM:
-
- FractalSave is based on the very popular FractalWeave shareware
- program by the same author. Many users of FractalWeave requested a
- screen saver version of that program. FractalSave was written to
- accomodate that demand.
-
- Version 2.0 of FractalWeave generates image files which are fully
- compatible with FractalSave. The demo image files included with
- FractalSave only hint at the wide variety of images which can be
- generated. FractalWeave gives you full control over the image. You
- can use it to create an unlimited number of custom images for use
- with FractalSave.
-
- *************************************************************************
-
- REGISTERING FRACTALSAVE:
-
- FractalSave is a shareware program, not free or public domain
- software. A lot of time and effort went into developing it; if you
- use it, you should register it. Please be honest and fair about
- this.
-
- To register FractalSave, send $15.00 to
-
- James H. Price
- 1253 E. Calaveras St
- Altadena, CA 91001
-
- WHAT A DEAL:
-
- As an added inducement to register, I'll also send the latest
- version of FractalWeave at no extra cost.
-
- *************************************************************************
-
- OBTAINING THE RETAIL VERSION:
-
- The shareware version of FractalSave is written primarily in C, with
- video and graphics routines in assembly language. It requires
- approximately 19k of memory when resident. The retail version of
- FractalSave is written entirely in assembly language, and requires a
- mere 4.5k of memory when resident.
-
- The retail version is being made available to registered owners of
- FractalWeave and FractalSave for a modest $10.00 upgrade fee. If
- you haven't registered either of these products, you can take
- advantage of the upgrade offer now. Send $25.00 (instead of $15.00)
- to the address above, and I'll send you the retail version of
- FractalSave, and (what the heck) the latest version FractalWeave at
- no extra cost.
-
-
- CONTACTING THE AUTHOR:
-
- If you have any questions or difficulties with the program, feel
- free to contact me at the above address. I can also be reached via
- CompuServe E-mail at 76264,3534.
-
- FINE PRINT:
-
- This program is distributed as-is. There is no warranty of any
- kind. By using the program, you agree to this.
-
-
-
- I hope you enjoy the program.
-
-
- Jim Price
-