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DAZZLE
Users Manual
Documentation for Revision 4.1a
4 January 1991
1. INTRODUCTION ...................................... 1
2. COMMAND LINE OPTIONS .............................. 3
2.1 Specifying Options ............................... 3
2.2 Compatibility Options ............................ 4
2.2.1 /C = COMPATIBLE mode, use BIOS. ................. 4
2.2.2 /2 = 2 part palette update. ..................... 4
2.2.3 /N = NO retract of hard disk heads. ............. 4
2.2.4 /X = XT compatible mode, inferior but works. .... 5
2.2.5 /K = Keyboard typematic unchanged. .............. 5
2.3 Artistic Options ................................. 5
2.3.1 /H = Hide EGA border. ........................... 5
2.3.2 /S = SHOW mode, quick single image. ............. 5
2.3.3 /E = EGA operation mode forced. ................. 6
2.3.4 /V = VGA operation mode forced. ................. 6
2.3.5 /T = TALL video aspect ratio mode. .............. 6
2.3.6 /F = FIXED colors instead of randomized. ........ 6
2.3.7 /A = ALTERNATE (faster) color cycling speed. .... 7
2.3.8 /M = MAD (fastest) color cycling speed. ......... 7
2.4 Other Options .................................... 7
2.4.1 /B = Bashful, no closing credits. ............... 7
2.4.2 /Q = Quiet, no tones (no effect on beeps). ...... 7
2.4.3 /I = Insecure, no antiviral checking. ........... 8
2.5 Specifying the INPUTFILE ......................... 8
3. ON-LINE HELP ...................................... 8
3.1 Cursor Keys within HELP .......................... 8
3.2 Exiting HELP ..................................... 8
4. PRIMARY DAZZLE MODES .............................. 9
4.1 Selecting Modes .................................. 9
5. KEYS ACTIVE IN ALL MODES .......................... 9
5.1 ESCAPE : Program Termination ..................... 9
5.2 TAB : Freeze Image ............................... 9
5.3 "+" and "-" : Color Cycling Clock Adjustment ..... 10
5.4 Shf-F10 : Reinitialize the Color Palette ......... 10
5.5 The Fade Control keys ............................ 10
5.5.1 W : Wipe (curtain) fade ......................... 10
5.5.2 L : Linewipe fade ............................... 10
5.5.3 X : heXagon fade ................................ 10
5.5.4 S : Starburst fade .............................. 11
5.5.5 R : Rectangles fade ............................. 11
5.5.6 E : Exclusive-OR fade ........................... 11
5.6 Special Fade Control keys ........................ 11
5.6.1 P : Pan/Scroll fade ............................. 11
5.6.2 H : Hold current display ........................ 12
5.6.3 N : Next display now ............................ 12
5.7 Mouse Clicks ..................................... 12
6. KEYS ACTIVE IN "SEMI-AUTO" MODE ................... 12
6.1 F9 : Select Random Image ......................... 12
6.2 F10 : Draw Current Image ......................... 13
6.3 Alt-F10 : Reinitialize Current Algorithm ......... 13
6.4 Specific Image Selection Keys .................... 13
page ii
Program, source, and all related documentation Copyright MicroTronics
7. CONFIGURATION ..................................... 13
7.1 Cursor Keys within CONFIGURE ..................... 14
7.2 Exiting CONFIGURE ................................ 14
7.3 Image Size Control ............................... 14
7.4 Fade Enable Control .............................. 14
7.5 File Access Menu ................................. 15
7.5.1 Select Mode ..................................... 15
7.5.2 File Name ....................................... 15
7.5.3 Path ............................................ 15
7.5.4 F3 : View Disk Directory ........................ 16
7.5.5 F4 : Execute Save/Load .......................... 16
8. CONFIGURATION FILE FORMAT ......................... 16
8.1 Shift Key Tokens ................................. 16
8.2 Key ID ........................................... 17
8.3 Configuration Value .............................. 17
8.4 Comment Lines .................................... 17
8.5 Version Flag ..................................... 17
9. PROGRAM INTEGRITY ................................. 17
10. PROGRAMMERS COMMENTS .............................. 18
11. LEGALESE .......................................... 18
12. DAZZLE Distribution Authorization ................. 19
13. EPILOGUE .......................................... 20
page iii
Program, source, and all related documentation Copyright MicroTronics
1. INTRODUCTION
DAZZLE is a randomized color pattern generator for MsDOS/PCDOS
computers with EGA or VGA compatible color displays and adapters.
Performance art for the eyes, now with optional interactive control!
A source of beauty, sometimes subtle, sometimes vibrant, always
changing. The image engine has over 30 primary image drawing algorithms,
most of which have at least two styles of presentation, many of which
have multiple internal drawing variations. There is also an assortment
of "fades", including split screens and pans, used by the imaging system
for greater diversity of presentation. The entire color range of the
detected video system is utilized for maximum variety and visual
stimulation.
When the "Semi-Automatic" mode is active, the user can play the
program from the keyboard. Specifically selecting each pattern to draw,
or letting the program select the pattern randomly. The selected pattern
is generated for as long as the user holds the draw key. There are no
limits on the mixing of image patterns. The user can then invoke a
specific fade effect, or let the program select an effect randomly. The
types of displays that can be generated in this fashion are far more
varied, and personal, than anything that "Auto" mode ever produces.
There is now a configuration menu that allows the customization
of DAZZLE image generation. It also allows the selective disabling of
various fades. This configuration information can be written to an
editable text file, and either loaded again from the menu or loaded
automatically at program invocation by specifying the file name on the
DAZZLE command line.
An on-line HELP text window system is now included.
In the self generating "Auto" mode, the primary image algorithms
are mixed randomly on the screen. Typically from 3 to 8 are overlaid at
a time, producing a very large assortment of possible displays. Each
display remains for a while to be appreciated, then the screen is
cleared via a fade algorithm, and another set of patterns is presented.
Mathematically speaking, an exact pattern match might not occur for many
days of continuous operation. Of course, human perception is far less
exacting and will discern repetition well ahead of these extremes, but
the general effect is still impressive. Note that the starting patterns
of the program will be different each time it is executed. If the
program seems predictable, then exit it and start it over again.
page 1
Program, source, and all related documentation Copyright MicroTronics
The July 1990 issue of "PsL News" (713-524-6394) described this
program as:
...the best kaleidoscope program we've seen yet.
The beautiful use of colors, enhanced even
further by the use of fading in and out, is, for
want of a better word, awesome.
DAZZLE has received other good press reviews, and even been
awarded "Best New Graphics Program for 1990" (Dec. 90 PsL News).
Dazzle can be used in a variety of ways. At the office it keeps
the screen from being burned by constant display of an unchanging
prompt. Simply start the program when leaving your desk or answering the
phone or otherwise diverted. One option is to start Dazzle from a
keyboard locking program so that unauthorized access is prevented on
your unattended computer until you return. In reception areas, at trade
shows, in showrooms, in waiting rooms, in schools, in display windows,
and other events where the desire is to attract attention; use a faster
cycling mode of Dazzle to peak curiosity and draw visitors to your area.
DAZZLE can be invoked from within your presentation software (see the
"/S" command line option) for an extra touch of pizzazz.
Dazzle can be used to aid relaxation. In its slower cycling VGA
modes it is often soothing and helps one to shift conscious attention
from the cares of the day. When overwhelmed with problems or pressures,
it is often true that shifting one's focus from an immediate concern
allows the objectivity needed to enhance decision making and settle the
nerves. Used with your favorite music, Dazzle can be highly entertaining
and regenerating.
DAZZLE is a performing art tool for the eyes. The MIDI control
and full manual image control options have not yet been implemented (we
plan to offer these to Registered Users only), but even in its current
random play mode it is great "living" mobile art. Capture stills, record
it on your VCR, use the images as backgrounds for your slide
presentations, or play it live with your band. Applications are
boundless.
page 2
Program, source, and all related documentation Copyright MicroTronics
2. COMMAND LINE OPTIONS
When you enter the command "DAZZLE -?" at the DOS prompt you will
be presented with the following display.
Usage: DAZZLE [- options] [/ options] [inputfile]
-c = COMPATIBLE mode, use BIOS for better portability.
-2 = 2 part palette update to fix flickering screens (slower).
-n = NO retract of hard disk heads.
-x = XT compatible, inferior but works.
-k = Keyboard typematic unchanged.
-h = Hide EGA border.
-s = SHOW mode, quick single image.
-e = EGA operation mode forced.
-v = VGA operation mode forced.
-t = TALL video aspect ratio mode.
-f = FIXED colors instead of randomized.
-a = ALTERNATE (faster) color cycling speed.
-m = MAD (fastest) color cycling speed.
-b = Bashful, no closing credits.
-q = Quiet, no tones (no effect on beeps).
-i = Insecure, no antiviral checking.
During the display the "+" and "-" keys can be used to control color
cycling speed. The TAB key will FREEZE the display till SPACE is
pressed. F1 activates on-line help during the program. F2 provides a
configuration menu. ESCAPE terminates the program.
2.1 Specifying Options
The DAZZLE program accepts any combination of options on the
initial command line that affect its mode of operation. The options can
be preceded with either the "/" (slash) character or the "-" (minus)
character. At least one space must exist between the DAZZLE command and
the first option. For example: "DAZZLE -FN" instructs DAZZLE to execute
with Fixed colors and No retract of the hard disk drive heads. The
options are not case sensitive--upper and lower case letters are treated
identically. The options can be concatenated into a single string (like:
-FN), or can be entered separately (like: -F -N), the effect is the
same. The optional inputfile can be specified anywhere on the command
line. For example: "DAZZLE -I DAZZLE.DZL" has the same effect as "DAZZLE
DAZZLE.DZL -I", which is to tell DAZZLE to startup in the insecure mode,
and to load configuration file DAZZLE.DZL prior to starting the image
generation process. The effects of each option are detailed below.
page 3
Program, source, and all related documentation Copyright MicroTronics
2.2 Compatibility Options
Seven of the options for DAZZLE are specifically related to
increasing portability of the program to various computers and displays.
The "c", "2", "n", "x", "k", "e", and "v" options default to the most
desirable modes, but can be controlled by the user. VGA users also
should refer to the "t" option for details.
2.2.1 /C = COMPATIBLE mode, use BIOS.
Normally DAZZLE bypasses the video adapters BIOS code for maximum
speed in color palette cycling. However, some adapters can have problems
with this mode of operation. To cause DAZZLE to use the provided BIOS
the "C" option can be used. If your display flickers or distorts, or the
color fails to cycle smoothly during the display, then try this option
to determine if it corrects the problem. As of Rev. 3.9g this option
also affects the EGA operational mode. This was needed by some VGA
adapters when DAZZLE was operated in the forced EGA mode. This option
reduces program performance speed and should not be used if not needed.
2.2.2 /2 = 2 part palette update.
Normally the entire color palette is updated at one time for each
tick of the color cycling clock. If the CPU clock speed or the VGA
palette register update rate is too slow, the upper part, or perhaps all
of the display, will flicker badly during the display. To determine if
this is due to palette updates, press and hold the "-" (minus) key
during the running display until it beeps (this is the slowest cycling
clock rate). If the display flickers only when the color changes, then
palette update speed is a problem. Using the "2" option splits the VGA
palette update request into two almost equal groups that are handled
sequentially. This should remove, or at least significantly reduce,
cycling induced flicker. This option should not be used if not needed,
as it slows the entire display generation process. This option affects
operation with VGA adapters only, since they allow longer 256 color
palettes. Short 16 color palettes for EGA's are never divided into two
separate updates.
2.2.3 /N = NO retract of hard disk heads.
Since the DAZZLE display is often allowed to run for hours, the
hard disk heads are normally parked into a safe power-down position as a
precaution in case electrical power is lost, or the computer powered
down while DAZZLE is active. This process has no effect on the image
generation performance of DAZZLE, but if your drive controller is highly
nonstandard it might cause DAZZLE to fail to start. Some disk drives
make a really nasty sound when they are next accessed after they have
been parked. While this is not an error, nor technically a cause for
concern, it sure can upset someone not sure of what is happening. The
user can issue this option to prevent any attempt to park the hard disk
heads.
page 4
Program, source, and all related documentation Copyright MicroTronics
2.2.4 /X = XT compatible mode, inferior but works.
This option should allow DAZZLE to execute on 8088 or 8086 based
PC/XT type computers with EGA or VGA adaptors and color displays. This
option will be automatically initiated if the 808x style CPU is detected
at program startup, but specifying the command line option avoids the
warning message. The EGA performance on XT computers seems acceptable,
but the VGA mode may be noticeably inferior to the performance of an
80x86 based computer. The faster the CPU clock the better the overall
performance and fluidity of DAZZLE.
2.2.5 /K = Keyboard typematic unchanged.
Revision 4.1a contains enhancements to make the program largely
immune to some "keyboard acceleration" utilities that exist. These
utilities cause the self-repeating "typematic" function of the keyboard
to function far more rapidly. They come in two flavors:
* Those that tell the keyboard to send keys more often.
* Those that trick DOS into thinking that more keys arrive than actually
are sent by the keyboard.
The latter of these types proved to be able to trash the keyboard
interfacing of prior versions of DAZZLE because of their "slight of
hand" tactics. This revision is now more able to withstand this attack.
The former of these types is less of a problem, but is capable of
drastically reducing the performance of DAZZLE on computers with slower
CPU clocks. Without specifying this command line option, DAZZLE will set
the "typematic" rate of the keyboard to it's minimum value for best
program performance. When DAZZLE terminates it puts the "typematic"
speed back to a value typical of most DOS defaults, unfortunately I am
not aware of a way to test the setting before changing it. Those that
use a keyboard speed-up utility that stops having an effect after DAZZLE
has been executed have the first type of such a utility, which I believe
is the better of the two. If you want the keys back to their quicker
speed you can re-execute your speed-up command. If you find this
unacceptable then use this command line option to force DAZZLE to keep
from changing the "typematic" rate of the keyboard, if you must. The
"/S" and the "/B" options automatically disable this feature.
2.3 Artistic Options
These options adjust the image generating algorithms used by the
program. They are largely artistic in nature but allow customizing the
presentation to various environments and requirements.
2.3.1 /H = Hide EGA border.
Some folks find the colored border on the EGA display
distracting, and some displays do not perform retrace masking properly.
This option will cause the border color in EGA modes to be forced to
black at all times.
2.3.2 /S = SHOW mode, quick single image.
This option gives a single panel of images and then terminates
automatically. This is most useful when DAZZLE is to be executed from
within other programs or batch files. As of revision 4.0 the image
displayed is different each time.
page 5
Program, source, and all related documentation Copyright MicroTronics
2.3.3 /E = EGA operation mode forced.
Normally DAZZLE will automatically detect the video adapter
hardware attached and adjust itself to use either the EGA or the VGA
mode. This "/E" option allows VGA users to select and view the EGA mode
of operation, which is 640x350x16 in format. As of revision 4.0 this
option, like the "/V" option, will prevent DAZZLE from aborting if it
thinks that it has detected an unacceptable video controller/monitor
combination, though it will still give its usual error messages during
startup.
2.3.4 /V = VGA operation mode forced.
Normally DAZZLE will automatically detect the video adapter
hardware attached and adjust itself to use either the EGA or the VGA
mode. This option generally SHOULD NOT BE NECESSARY, OR USED. It should
be unable to cause any damage, but is intended for rare compatibility
conflicts where the startup code in DAZZLE falsely rejects the video
controller/monitor combination as unacceptable. This option, like the
"/E" option, will allow the error messages to be reported (so that you
can write us of the problem), but will prevent the program from aborting
itself. If the controller/monitor is really VGA compatible, or really
EGA compatible if using the "/E" option, then normal image generation
should be observed. Unlike the "/E" option, this option lacks artistic
usage or impact. The VGA mode uses all 256 color palette registers for a
far more subtle and interesting series of displays. NOTE: If VGA users
wish to use an image capture type program to extract the display into a
file, you should use either the "/E" option or the "/T" option, since
these modes use standard BIOS supported video modes. The default VGA
mode of DAZZLE uses a specially enhanced 320x400x256 mode that is not
properly captured by most commercial products. Both VGA modes require no
more than 256kB of video memory.
2.3.5 /T = TALL video aspect ratio mode.
Normally the EGA mode of DAZZLE uses a 16 color 640x350
resolution display with a modified aspect ratio (screen is mapped as if
it had 640x700 resolution). The default VGA mode uses 256 color 320x400
resolution. The "/T" option causes the program to use the standard BIOS
supported screen resolution and aspect ratio in generating all images.
The effect is slightly faster image generation, but with a noticeably
tall aspect ratio. As of revision 4.0 this option is functional with the
VGA display mode, and causes it to use the BIOS supported 320x200 video
mode. This allows VGA images to be captured, or converted to NTSC
television video images for recording on video tape. Note that due to
VGA hardware limitations, using this option will prevent the display of
"dual page" effects (where a screen composed of a different image than
the one being displayed is "panned" or "scrolled" onto the visible
display area).
2.3.6 /F = FIXED colors instead of randomized.
Normally DAZZLE will randomize the color palette registers
between each screen erase before starting the next image generation.
This allows all the possible colors (up to a quarter million on VGA) to
be used by the program. This option forces the palette to an identical
state at all times.
page 6
Program, source, and all related documentation Copyright MicroTronics
2.3.7 /A = ALTERNATE (faster) color cycling speed.
The default color cycling mode is the slowest, with the most
subtle shadings and transitions. This option increases the cycling rate
used in shaping the palette contents. This effect is distinct from, but
can complement, the "+" and "-" keys that can be used while the program
is active.
2.3.8 /M = MAD (fastest) color cycling speed.
This option not only greatly accelerates the color palette
contents rotation, but it also increases the number of image primitives
that can be displayed in "Auto" mode at one time before the screen is
erased. The effect is a far busier screen, a more intense visual
experience. This is particularly suited to attention-getting in
showrooms and other public displays, whereas the default mode is more
practical for personal meditation and relaxation.
2.4 Other Options
2.4.1 /B = Bashful, no closing credits.
DAZZLE will identify itself, including its revision level, when
the program is started. This opening identification will remain on the
screen with a "Press any key" prompt until the user makes some key entry
(or about 30 seconds pass). The BASHFUL option will allow DAZZLE to
start after only a 2 second delay, without requiring an extra keystroke.
This mode also will prevent closing credits when the program terminates
(similar to the SHOW option), and additionally prevents DAZZLE from
clearing the type-ahead keyboard buffer when it exits. This allows usage
of DAZZLE in a more classical "Screen Saver" mode, since whatever key is
pressed to exit is not lost. This mode disables ALL key interpretation
of DAZZLE. Even the "+" and the "-" keys will cause DAZZLE to terminate.
DAZZLE does not (yet) initiate itself in a "Screen Saver" fashion, but
by using this option it can be called from such a utility. DAZZLE has
been successfully used within MS/Windows386 (copyright MicroSoft), but
use of this option will prevent window selection keystrokes.
2.4.2 /Q = Quiet, no tones (no effect on beeps).
This option will block the tones that DAZZLE emits at various
points in its operations. But warning beeps are generally not
restricted. As of revision 4.1, DAZZLE uses programmed tones for most
alerts and signals that it issues. These tones are of short duration,
and change pitch depending on the condition being signaled. With the
increase in operational options these tones are very helpful in
determining the state the program is in. The one place where these tones
are superfluous is the tiny tune in the closing credits, but this tune
can be aborted with any keypress.
page 7
Program, source, and all related documentation Copyright MicroTronics
2.4.3 /I = Insecure, no antiviral checking.
Before starting the image display process DAZZLE will normally
perform a test on the disk copy of itself in an attempt to assure that
no unauthorized modifications ("hacks") have been made to the program
after it was distributed from MicroTronics. This is a safety feature
added for YOUR protection! Once you have used your copy of DAZZLE, after
it has passed its antiviral test and you no longer wish to endure the
delay at every invocation for this testing, you can use this command
line option to bypass this safety feature. IF YOUR COPY OF DAZZLE FAILS
THIS TEST, PLEASE NEVER USE THIS OPTION! INSTEAD WRITE TO US, AND TO THE
SUPPLIER THAT GAVE YOU THE BAD COPY, AND LET US KNOW! A clean copy can
be in your hands in a very short time, and might save your entire
software investment.
2.5 Specifying the INPUTFILE
As of revision 4.1, DAZZLE can accept the optional specification
of an input file on the command line. This file must contain a text
script that is consistent with the program's language specification. The
specification of a path as well as a filename is acceptable. If the file
cannot be found DAZZLE will abort. Be sure to separate the file name
from options with at least one space.
3. ON-LINE HELP
As of revision 4.1, DAZZLE now supports an on-line help menu
system. You may press the "F1" function key to activate the help
subsystem. This system is intentionally limited in size and scope to
keep the program from growing too large, but it offers useful summaries
of the newest and most pertinent features of DAZZLE. At this time the
screen that was being displayed when help is activated is erased when
help is exited.
3.1 Cursor Keys within HELP
When within the help subsystem DAZZLE recognizes the various
standard cursor keys. The "HOME" key jumps to the first page of help
text. The "END" key jumps to the last page of help text. The "PgDn" key
advances to the next page of help text, the "PgUp" returns to the
previous page. The arrow keys also can be used. Note that the bottom
right of the text window shows what page movement keys are valid at that
point.
3.2 Exiting HELP
The text menu subsystems, including the help system, can be
exited by pressing the same key that invokes that subsystem. Thus to
exit help press the "F1" key again.
page 8
Program, source, and all related documentation Copyright MicroTronics
4. PRIMARY DAZZLE MODES
As of revision 4.1, DAZZLE now has two primary modes of
operation. The original "Automatic" (a.k.a. "Auto") mode, which is fully
self generating; and a new "Semi-Automatic" (a.k.a. "Semi-Auto") mode,
which allows interactive control of the image generation process. Some
keys are only effective in the "Semi-Automatic" mode, others are active
at all times.
4.1 Selecting Modes
Selection between these two modes is done by pressing the "ALT"
(Alternate) key and the "F9" function key. This combination is referred
to as "Alt-F9" for short. At program startup DAZZLE is always in "Auto"
mode.
To enter "Semi-Auto" mode press "Alt-F9". There is a short high
pitched tone. The display is cleared. The palette is reinitialized to a
new setting. Then a short multi-tone chirp is emitted to indicate that
"Semi-Auto" is ready for image drawing commands.
To return to "Auto" mode press "Alt-F9". There is a short lower
pitched tone. The display is cleared. The palette is reinitialized to a
new setting. Then the self generating engine begins creating random
image displays.
5. KEYS ACTIVE IN ALL MODES
Some key commands that DAZZLE recognizes are active regardless of
the current display mode. The meaning of some keys changes slightly
depending on the current display mode.
5.1 ESCAPE : Program Termination
There is an old adage, "The first and most important thing to
learn about any program is how to get out of it." This key will do the
job for you regardless of where you are in the program, just keep
banging it till you get back to the DOS prompt. Note that when not in
the various text menu screens, that "ENTER" also will terminate the
program.
5.2 TAB : Freeze Image
The "TAB" key can be pressed at any time to "freeze" the current
image display. Once pressed, DAZZLE will remain in "freeze" mode until
the "SPACE" key is pressed (this action has changed in revision 4.1).
While in "freeze" mode, the "TAB" can be repeatedly pressed to toggle
between color-cycling and color-static modes. The "Shift-F10" key can be
used to change the palette of an image in "freeze" mode. This is most
useful in stabilizing a specific display for image capture programs or
screen photography. Even an image in the midst of a fade or pan can be
put into "freeze" mode. This key is also active in the "Semi-Automatic"
mode, though here its usefulness is limited to halting a fade in mid-
execution.
page 9
Program, source, and all related documentation Copyright MicroTronics
5.3 "+" and "-" : Color Cycling Clock Adjustment
The fluid changing of DAZZLE images is largely the result of a
clock driven rotation of the display's color palette. The user can
adjust the rate of this clock at any time by using the "-" (minus) key
or the "+" (plus) key. Pressing "-" reduces the clock rate, pressing "+"
increases the clock rate. Note that DAZZLE defaults to maximum speed in
VGA modes, and almost maximum rate in EGA modes. When either the maximum
or the minimum clock rate is reached the console emits a short tone.
This process is distinct from, yet can complement, the palette control
command line options.
5.4 Shf-F10 : Reinitialize the Color Palette
Pressing the "SHIFT" key and also the "F10" function key
simultaneously, called "Shf-F10" for short, causes the current color
palette of the display to be reinitialized to a new random condition.
There is a short tone at the start of the request, and another tone when
the process is completed. In EGA modes the process is almost
instantaneous, in VGA modes it can take up to a few seconds.
5.5 The Fade Control keys
DAZZLE allows the user to select which fades will be used. The
actions of these keys vary slightly depending on the current mode. In
"Auto" mode, pressing one of the fade keys sets which fade will be used
next but allows the normal image generation process to continue. In the
"Semi-Automatic" mode the fade keys induce the selected fade
immediately.
5.5.1 W : Wipe (curtain) fade
Vertical or horizontal curtain wipe. Sometimes in color,
sometimes to black.
5.5.2 L : Linewipe fade
This selects a straight line drawing algorithm that uses random
deltas on the X and Y coordinates to produce some really interesting and
convoluted weavings of lines. This pattern can come up in unsymmetric
mode--a single row of lines moving around--or in four sided or eight
sided symmetry. Like many fades, it can be in solid color mode, or may
come up in exclusive-OR mode. This latter mode moves a "ghost" of the
image through the display, and creates complex mosaic texturing. The
modes that will be used at any time are randomly selected.
5.5.3 X : heXagon fade
I took this one from a game program I've been working on forever.
It is a basic six sided shape that burst from the center of the screen.
Some of its sides are transparent, some are solid. This fade can use the
exclusive-OR mode, which can be really pleasing.
page 10
Program, source, and all related documentation Copyright MicroTronics
5.5.4 S : Starburst fade
This one was a direct result of watching "Star Trek: The Next
Generation" (copyright Paramount) one too many times. The stars in the
burst can have long or short tails. This fade will sometimes be invoked
by the Hexagon fade, just cause I thought they looked nice together.
5.5.5 R : Rectangles fade
This selects a series of rectangles that are rotated on an axis
in the center of the screen. The rectangles grow as they spin.
5.5.6 E : Exclusive-OR fade
While some other fades, and most image generating algorithms, can
use the exclusive-OR technique (a computer term for a mathematical
process, don't fret if it's greek to you) to produce "ghost" or mosaic
images; this fade does this every time. It just builds a rectangle
around the virtual screen in memory and moves it into the center of the
screen. Note that many shapes within the effected area have the
direction of their color motion reversed when this effect passes over
them.
5.6 Special Fade Control keys
The following behave a little differently, so I set them aside
for special discussion.
5.6.1 P : Pan/Scroll fade
Unlike the previous fade keys, this one has to be pressed at a
certain time to have any effect in the "Automatic" mode. When DAZZLE is
drawing in "Auto" mode it is in the "Auto Daze" state. Once the last
image has been drawn it switches to the "Fade Out" state. The first
thing this latter state usually does is just pause for a while so that
you can appreciate the incredible beauty of the display. The "P" key is
only recognized in "Auto" mode if pressed while still in the "Auto Daze"
state. Once the last image has been drawn and the pause delay starts the
key will simply be ignored.
In the "Semi-Automatic" mode this key won't induce a Pan/Scroll.
Since that effect is not supported in the "Semi-Auto" mode, pressing "P"
causes one of the other fades to be randomly selected and executed
immediately.
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Program, source, and all related documentation Copyright MicroTronics
5.6.2 H : Hold current display
This is distinct from, yet similar to, the "freeze" command that
is called with the "TAB" key. This key is simply ignored in the "Semi-
Auto" mode. In the "Auto" mode it lets the "Auto Daze" (refer to
Pan/Scroll description) state continue to normal completion, and will
even let a Pan/Scroll proceed normally if one happens to have been
selected by the "Fade Out" state. But it causes the "Fade Out" state to
jam in the pause delay mode forever. Here the program will wait until
you manually select a fade. Note that the fade that you select will
commence immediately.
5.6.3 N : Next display now
This key has been made immediately effective in all modes. It
stops any current image generation or fade, and begins a screen clear
process.
5.7 Mouse Clicks
As of revision 4.0c DAZZLE will test for the presence of a
MicroSoft compatible Mouse driver. If any mouse button is pressed (or if
the screen is contacted when using a Touch Screen system that is
MicroSoft Mouse compatible) DAZZLE will usually interpret that action as
being the same as pressing the "ENTER" key. Note that in the text menu
subsystem of this current version a mouse click aborts the program.
6. KEYS ACTIVE IN "SEMI-AUTO" MODE
As of revision 4.1, DAZZLE supports a whole set of commands to
allow the user to control the image generation process of the program.
Refer to "Selecting Modes" above for details on accessing the "Semi-
Automatic" mode. Note that configuration options that disable a fade
cause that fade to be unavailable in the "Semi-Auto" mode also. In
addition to the keys described in the "KEYS ACTIVE IN ALL MODES" section
above, the following keys can be used while in the "Semi-Auto" mode.
6.1 F9 : Select Random Image
If the user wishes to let DAZZLE randomly select the next image
generating algorithm to be drawn then press the "F9" function key. It
selects another image each time it is pressed. Note that specific images
can be selected as detailed below.
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6.2 F10 : Draw Current Image
Once an image algorithm has been selected by whatever means, the
"F10" key is pressed to draw that image. The image will be drawn for as
long as you hold down this key. You may release the key, and when you
press it again it will simply resume where it left off if you have not
pressed another key. It is suggested that you start an image with just a
tap of this key, note what it is doing, and then decide how long you
wish to hold it. Since there are no limits on image generation time with
this key, you can let a really interesting pattern grow continuously,
producing visual effects that "Auto" mode will never duplicate. This key
will remember the image being played even if you perform a "fade". So if
a great image gets too busy, you can "fade" it and press "F10" again and
pick up where you left off.
Due to the behavior of the "typematic" key repeat built into the
keyboard controller, it is possible for DAZZLE to get confused about
when you release the "F10" key. If this happens then the selected image
will continue drawing after you release this key. Just a quick tap of
this key again will bring it to a halt.
6.3 Alt-F10 : Reinitialize Current Algorithm
This key allows the continued use of the same currently selected
image algorithm. But it causes the image algorithm to be reinitialized
to new random settings. This is most useful for changing between various
modes of the same algorithm. Some images support use of exclusive-OR for
"ghosting" or mosaic texturing, some can change shape, most will change
color and screen location when this is pressed.
6.4 Specific Image Selection Keys
It is possible to specify exactly which image algorithm you wish
DAZZLE to use by pressing one of the Alt-keys 0 thru 9, or A thru Z.
Press the "Alt" key, and a letter key or number key (use the numbers
along the top of the keyboard, not the ones over on the side calculator
pad). Each represents a specific image selection. The "Image Size"
display in the "Configuration" menu list the name of each algorithm, and
the Alt-key that can be used to select that image.
7. CONFIGURATION
As of revision 4.1, DAZZLE allows the user to customize some of
the characteristics of the image generation and fade actions. At any
time you may press the "F2" function key to activate the configuration
menu subsystem. This system is currently a bit limited in its range, but
it offers useful enhancements and controls.
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Program, source, and all related documentation Copyright MicroTronics
7.1 Cursor Keys within CONFIGURE
When within the configure subsystem DAZZLE recognizes the various
standard cursor keys. The "HOME" key jumps to the first entry field of
the current screen. The "END" key jumps to the last entry field of the
current screen. The "PgDn" key advances to the next screen, the "PgUp"
returns to the previous screen. The arrow keys also can be used. Note
that the bottom right of the text window shows what page movement keys
are valid at that point.
7.2 Exiting CONFIGURE
The text menu subsystems, including the configure system, can be
exited by pressing the same key that invokes that subsystem. Thus to
exit configure press the "F2" key again.
7.3 Image Size Control
This screen allows the user to customize the images generated in
the "Auto" mode of DAZZLE. When an image is called, it is allowed to
draw on the display for a variable amount of time, the duration of which
centers around the number entered in this menu. This number is
multiplied by an internal value that reflects the size of the display
and the resolution of the current active video mode. Therefore these
numbers are relative and not absolute in their impact. Since the screen
resolution varies from EGA to VGA, it is also true that the maximum
value that can be entered changes between video modes. You may enter any
large number, DAZZLE will reduce your input to the legal range for the
current mode. The minimum value is 1.
As this number is increased the selected image is allowed to draw
longer, producing either larger patterns, more patterns, and/or a
greater variety of pattern variations.
The "KEY" field shows which Alt-key (refer to "Specific Image
Selection Keys" above) will select that specific image drawing
algorithm. The "NAME" field shows the internal name of that image. The
"SIZE" field shows the current relative size limit for that image.
7.4 Fade Enable Control
This screen allows the user to selectively enable or disable
specific fades. If disabled, the fade will be unavailable in either
"Auto" or "Semi-Automatic" modes. If the user presses a fade command key
(refer to "The Fade Control Keys" above) for a fade that has been
disabled then DAZZLE will randomly select an enabled fade to execute.
The "KEY" field shows which key (without the "Alt", "Ctrl", or
"Shift" keys being used) will select that specific fade algorithm. The
"FADE" field shows the internal name of that fade. The "ENABLE" field
shows the current state for that fade.
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Program, source, and all related documentation Copyright MicroTronics
7.5 File Access Menu
This screen allows the user to save or load a DAZZLE
configuration file. There are three entry fields on this screen. Two
additional function keys are also recognized only when viewing this
screen.
7.5.1 Select Mode
At this entry the user can select either to "Save" the current
configuration information, or to "Load" an existing file. Press either
the "S" key or the "L" key, then "ENTER".
7.5.2 File Name
At this entry the user can specify the file to be saved or
loaded. Note that a default name is provided if one was not used at
program invocation. To replace the name simply begin typing it in, and
press "ENTER" when completed.
Beneath this field is an unmarked "File Status" field. If you
attempt to load a nonexistent file this will show "NOT FOUND". If you
try to save over an existing file this will show "EXIST", unless the
file is protected from overwriting, in which case it will show "READ
ONLY".
If you specify a wildcard character ("*" or "?") within this
entry, then DAZZLE will automatically invoke a directory list to aid in
your selection process.
7.5.3 Path
The current disk and directory path is displayed in this field.
You may specify any variation of disk and path information that DOS
would normally support. Each of the following are legal:
.. (changes to previous directory)
C: (changes to C drive)
\PARTY (to PARTY directory on current disk)
D:\ (to root directory on D drive)
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Program, source, and all related documentation Copyright MicroTronics
7.5.4 F3 : View Disk Directory
Pressing the "F3" function key invokes the disk directory
display. Note that if you have begun an entry in any of the menu's
fields you must press "ENTER" before this key can take effect.
Once a disk directory is displayed you may use the various cursor
keys to move around. Arrow keys work, and the "HOME" key jumps to the
top of the display, the "END" key jumps to the bottom. The "PgUp" and
"PgDn" keys can be used to move about more quickly. Press "ENTER" to
select a specific file, or "F3" again to exit this display.
If you select a field that ends with a "\" (backslash) character,
you are selecting a directory, and the display will be updated to
reflect the contents of this new default path. The path field in the
File Access Menu also will be updated to this new path.
File names displayed in lower case letters are "Read Only".
7.5.5 F4 : Execute Save/Load
Once the desired file has been specified, the "F4" function key
can be pressed to execute the specified command. Upon successful
completion the File Access Menu will be exited.
8. CONFIGURATION FILE FORMAT
The file that is used by DAZZLE is an editable text file that
follows a simple format. Each entry in the file must be on a separate
line, and consist of a "Key ID" and a "Configuration Value". It is
suggested that the user invoke DAZZLE in it's default mode, use the File
Access Menu to "Save" a copy of the program's configuration. That file
should then be printed. With DAZZLE in the Configuration Menu mode, a
printout of the configuration file, and a copy of this document in hand,
the whole process should prove to be very clear.
8.1 Shift Key Tokens
A token in DAZZLE is a character that represents a condition. In
order to represent within the configuration file the condition of the
three shift keys--Alternate, Control, Shift--a group of tokens have been
assigned as follows:
Alternate = ~ (Tilde character)
Control = ^ (Caret character)
Shift = ` (grave or backwards-quote character)
Thus to specify the Alt-A key, the file entry would be "~A". To
specify the Shift-F key, the file entry would be "`F". Note that version
4.1 of DAZZLE only uses the Alt-key in this file, others are for future
expansion and enhancements.
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Program, source, and all related documentation Copyright MicroTronics
8.2 Key ID
A "Key ID" entry in the file consist of the key to be designated,
with an optional shift key token prefix. Refer to Shift Key Tokens above
for examples.
8.3 Configuration Value
The value to be specified must be surrounded in square brackets;
"[" and "]".
If the value is for an Image Size entry, then the use of an
unsigned integer value is required. Unsigned meaning no "+" or "-"
values. Integer meaning no fractions, decimal points, or exponents.
Therefore legal values are: "[25]" or "[0001]" or "[ 99 ]". Illegal
values would include: "[-1]" or " 25]" or "[14.5]".
If the value is for a fade entry, then the use of either a "Y" or
an "N" character is required: "[Y]" or "[N]".
8.4 Comment Lines
While reading (parsing) any line of text in the file, when a ";"
(semicolon) is encountered DAZZLE stops reading that line. This allows
the liberal insertion of various comments within the file. DAZZLE is
very casual about parsing this file. It tolerates extra space and tab
characters, so you can generally make the file look any way you like.
8.5 Version Flag
The first non-comment line in the file should be the version
flag. It consists of a "#" (hash) character followed by an unsigned
integer of the DAZZLE version of the creating program. This is intended
for future compatibility between upgrades and should not be changed.
9. PROGRAM INTEGRITY
All reasonable effort has been made to assure that the use of
this program on any compatible computer system can have no detrimental
side effects. In addition to extensive Quality Assurance testing, the
program contains an internal integrity check (read the section on the
"/I" command line option above). If someone makes any code modifications
to this program, it probably will be detected and the program will
refuse to execute. Any such persons will be aggressively pursued and
prosecuted. As of revision 4.0 the antiviral system uses CRC checking
instead of the previous checksum algorithm.
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Program, source, and all related documentation Copyright MicroTronics
10. PROGRAMMERS COMMENTS
DAZZLE is written mostly in Turbo C 2.0 (copyright Borland).
Assembler code was used mostly due to two characteristics of DAZZLE: all
image generation is done a single pixel at a time, thus video write mode
2 was needed for EGA speed; secondly, the VGA mode uses the not-so-
standard but highly portable 320x400 mode instead of the normal BIOS
supported 320x200 mode.
If you are a C programmer with interest in DAZZLE, then please
write to us. We will be glad to provide full details about source
availability if you note your interest when you pay your registration
fee.
11. LEGALESE
All commercial rights to this program are retained by the Author,
but revenue derived from the images captured or photographed from DAZZLE
are free from any royalty, fee, or other claims by the Author of DAZZLE.
The executable form of the program is released as a ShareWare product.
Please note that this program is NOT FREE. You are entitled to use it
for evaluation over a short time to determine if it functions adequately
for your needs, after which time a registration fee is required by
copyright law. The user or possessor of the DAZZLE program will in all
cases hold MicroTronics and it's related entities harmless from all
claims, liability and damages arising from the use of this product, or
its unfitness for any specific purpose.
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Program, source, and all related documentation Copyright MicroTronics
12. DAZZLE Distribution Authorization
The enclosed DAZZLE program is hereby offered for your use and
distribution as a ShareWare product. Anyone wishing to charge people a
fee for giving them a copy of DAZZLE must sign and return this form to
MicroTronics, or will be in violation of copyright restrictions. If you
wish to receive automatic upgrade releases then submit $15 payable to
MicroTronics. Distributors recognized by the Association of Shareware
Professionals may discount this cost by 50%.
Name of Organization :_________________________________________________
Your Name :____________________________________________________________
Address :____________________________________________________________
____________________________________________________________
____________________________________________________________
TERMS OF DISTRIBUTION OF DAZZLE:
1. The fee charged may not exceed $7, including postage, mailer and
any other changes.
2. Your library's catalog or listing must state that this program is
not free, but is copyrighted software that is provided to allow the user
to evaluate it before paying.
3. The offering and sale of DAZZLE will be stopped at any time the
author so request.
4. Copies must be made from the copy of DAZZLE sent to you directly
from MicroTronics. The program and it's documentation files must be
supplied in their entirety, without modification, truncation, or
omission.
5. Problems or complaints will be reported to the author for
resolution.
In return for the right to charge a fee for the distribution of the
program DAZZLE, I agree to comply with the above terms of distribution.
Signed,
___________________________________________
your signature Date
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Program, source, and all related documentation Copyright MicroTronics
13. EPILOGUE
This program may be distributed complete, and as is, AT NO CHARGE
(excluding reasonable duplication cost). All commercial rights retained
by the author. This program must not be altered in any way, and is
offered as is without warranty. The only assurance to the user is that
all reasonable effort has been made to confirm that this program as
released will produce no undesirable or damaging effects on the
executing computer.
This product consists of 3 files: DAZZLE.EXE DAZZLE.DOC OVERVIEW.DOC
Comments and inquires about updates and other products are welcome.
Source can be purchased for some products.
$15.00 ($20US overseas) registration payable to MicroTronics earns a
free update and puts you on our mailing list. Be sure to mention this
programs revision level when you write.
Mailing address (1990,91):
J.R.Shiflett's Midnight Visions Workshop
c/o MicroTronics
503 Shenandoah Drive
Spring, Tx USA 77381
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Program, source, and all related documentation Copyright MicroTronics
