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The 640 MEG Shareware Studio 2
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The 640 Meg Shareware Studio CD-ROM Volume II (Data Express)(1993).ISO
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sgif.zip
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SGIF.DOC
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1991-11-25
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Here is SGIF v1.0, the only GIF viewer that I know of that lets you look at
the current GIF in a slide show while decoding the next one to XMS or
EMS memory. When you hit the ENTER or SPACE key, it (almost) immediately
displays the pre-decoded gif, and automatically decodes the next one in
the slide show. This way, you don't have to wait. The first gif in the
show is sent to the screen while it's being decoded.
It will read GIF87a or GIF89a files, but it cannot do the fancy GIF89
stuff.
SGIF is not public domain. You can freely distribute it, but if you like
it and use it often, please send an appreciation of $15 to:
Bailey Brown
188 Morris Rd
Toney, Alabama 35773 USA
e-mail:
73020,3442 (CompuServe)
bbrown@b11.ingr.com (Internet)
New SGIF 1.1:
It will allow you to display info on a GIF file, and it also allows you
to delete a file.
SGIF 1.0:
One neat feature is that it allows you to specify multiple paths on the
command line, so that you can browse through all of your gifs at once, even
if they are split among several directories.
It has a very good interactive slideshow capability. You can return to the
previous gif, reverse direction, remove files from the slideshow, have
an automatic slideshow and specify the delay between pictures, pause an
automatic slideshow, and preview a gif without clearing your current
slideshow selections.
Your can switch resolutions on the fly. In this case, the gif is copied
from the screen to XMS/EMS, then the mode is switched, then the gif
is displayed, saving you the decoding time.
It will use the higher text modes (80x50, 132x25, 132x44) if they are needed
to display all of the files on the screen. The maximum is 484 files in
132 cols x 44 lines mode.
Before you go any farther, I want to make it clear that I wrote this
viewer for my system. It requires 768K free XMS or EMS memory, and that
you have a Tseng Labs ET4000-type SVGA card (STB, Orchid ProII, Sigma,
SpeedStar, etc.) or an ATI VGA Wonder compatible card (it's been tested
extenively with Tseng ET4000, and only casually with VGA Wonder).
It handles the 16-color modes poorly because I don't care about them.
If you like SGIF and would like to run it on a sysem with an unsupported
video card, send me a $15 appreciation and I will port it to your new
type of card.
A more complete description of the features follows.
COMMAND LINE OPTIONS (not case sensitive)
=========================================
* means default
/V[:]x default Video mode (colon is optional) where x is one of the
following:
*default (no /v option given) is to use automode, meaning
lowest mode that will show whole picture is used.
letter horizontal vertical colors
G 640 350 16
M 640 480 16
L 320 200 256
R 640 400 256 (ATI ONLY)
S 640 480 256
T 800 600 256
X 1024 768 256
1 next higher resolution than the one that
the image will fit in, ie 800x600 for 640x480 gifs
and 1024x768 for 800x600 gifs.
/B[d|n] Background color
*none use background color specified in the gif header
(not necessarily color 0 from the color map, which
most gif viewers do).
D find darkest color in colormap and use it for the background
n where n is a number. Use color n in the color map for
the background. n must be in the range [0-nn] where nn
is one less than the number of colors in the image (usually
15 or 255).
examples:
sgif will use color from gif header
sgif /bd will use darkest color possible
sgif /b0 will use color 0 (usually black)
sgif /b255 will use color 255 (usually white)
/D"path1;path2;..;pathn"
specify Directories to look for gifs. Does not assume current directory.
example:
sgif /d.;c:\pix\people;c:\pix\places;c:\pix\things;..\morepix
will allow you to select gifs from the current directory and
the directories c:\pix;people, c:\pix\places, c:\pix\things,
and ..\morepix.
/K don't wait for Keypress between pictures (auto slideshow).
/Wn Wait time. Sets pause time to n 100ths of a second.
Useful with auto slideshow.
/R Return to DOS after displaying picture.
/E Leave picture on screen after exiting (don't clear screen).
Useful with /R option.
/M[x|e] Memory
*X use XMS memory
E use EMS memory
SELECTION KEYS (not case sensitive):
====================================
ENTER show selected image(s).
SPACE mark image for slideshow.
PAGE UP move to top of screen.
PAGE DN move to bottom of screen.
HOME move to first column.
END move to last column.
^HOME move to tope left corner.
^END move to bottom right corner.
'f'
type 'f' followed by any char to move highlight to first filename
on screen that starts with that char.
'p' preview image (show image witout clearing slideshow list).
'+'
'z'
make next higher resolution default (starts with 640x480x256).
'-'
'x' make next lowere resolution default.
'i' display info on file (path, resolution, colors, size)
^D delete file after prompting
toggles:
'a' use auto resolution.
'1' use next higher than auto resolution, eg. 800x600 for 640x480 gif.
'd' use darkest color in images as background.
'k' (don't) wait for keypress.
ESC quit.
INTERACTIVE KEYS (while viewing images)
=======================================
'+'
'z'
change to next higher resolution.
'-'
'x'
change to next lower resolution.
'u' unselect image, ie. remove it from slideshow.
'i' display info on file (path, resolution, colors, size)
^D delete file after prompting
BACKSPACE
go back to previous image
'r' reverse direction of slideshow.
ESC stop decoding/viewing and return to selection menu.
toggles:
'a' use auto resolution.
'1' use next higher than auto resolution, eg. 800x600 for 640x480 gif.
'd' use darkest color in images as background.
'k' (don't) wait for keypress.