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1990-08-11
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GIFDESK.DOC - some notes on GIFDESK.EXE 3.2
(released August, 1990 - 25th anniversary of Beatles Help! Album)
GIFDESK is a utility to view many of your GIFs at one time on a VGA system.
Examples of how to use GIFDESK:
GIFDESK *.gif
GIFDESK f:\pics\s*.gif p*.gif
Run GIFDESK alone to get a quick-reference to it's usage.
Remember, you need at least a VGA (SVGA with >= 512K for color) to use GIFDESK!
------------------------------------------------------------------------------
NEW THIS VERSION:
- Addition of Tseng 4000 chip set usage
- Clear screen changed, should now work on ALL cards
- Vertical interrupt usage changed a bit, if it hung
before, it might not now.
------------------------------------------------------------------------------
Display: GIFs are displayed by GIFDESK in several arrangements. The
maximum number of GIFs shown at one time is 80 (if you have a 1024x768
mode on your SVGA). GIFDESK can also show 1 GIF at a time (in color if
you have a hi-res 256 color mode on your SVGA). The display layout can
be changed by hitting the SPACEBAR. This will cycle through the various
GIF arrangements. Also, the F1,F2,F3 and F4 keys will switch directly
to a particular layout. (Notice that F1=1x1, F2=2x2, etc). If you are
using an SVGA that supports an 640x480, 800x600 and/or 1024x768 mode you
can switch to a higher resolution using the + key. Switch to lower
resolution with the - key. The following table lists the various
configurations:
Video Mode GIF Arrangemant
F1 Key F2 Key F3 Key F4 Key
------------------ ------------- ----------- ----------- ------------
640x480x16 1x1 16-Grey 2x2 16-Grey 3x3 16-Grey 6x5 16-Grey
640x480x256 (SVGA) 1x1 256/64 2x2 256/64 3x3 256/64 6x5 256/64
800x600x16 (SVGA) 1x1 256/64 2x2 256/64 4x4 256/64 8x6 256/64
800x600x256 (SVGA) 1x1 256/64 2x2 256/64 4x4 256/64 8x6 256/64
1024x768x16 (SVGA) 1x1 256/64 2x2 256/64 5x5 256/64 10x8 256/64
1024x768x256(SVGA) 1x1 256/64 2x2 256/64 5x5 256/64 10x8 256/64
(256/64 is 256 colour or 64 grey - toggle between these with F10)
Notes:
1) GIFDESK should be able to handle GIF's up to 4096x4096 in size.
2) Writing a GIF file (via . key) may take a while. As it is being
done, a white dot will scan the screen for top to bottom. At
completion, a two tone sound will occur if successful.
Super VGA's:
If you have a super VGA that supports 640x480x256 or better (you need 512K),
GIFDESK should use the appropriate driver for your card. The signon screen
lists the type of card that GIFDESK detected. If this is incorrect, you can
override this autoselection with the environment variable GIFDESK. Set the
environment variable GIFDESK to the correct card name according to the following
table:
Card(s) GIFDESK Environment Variable
=====================================================================
ATI VGA Wonder ATI
---------------------------------------------------------------------
Chips & Technologies, Cardinal C&T
---------------------------------------------------------------------
Everex Viewpoint EVEREX
---------------------------------------------------------------------
Paradise, AST, Compaq, Dell PARADISE
---------------------------------------------------------------------
Tseng, Genoa, STB, Orchid TSENG
---------------------------------------------------------------------
Trident, Logix, ZyMOS TRIDENT
---------------------------------------------------------------------
Video 7 VIDEO7
---------------------------------------------------------------------
Generic VGA VGA
---------------------------------------------------------------------
Tseng 4000 TSENG4K
Example:
If you have an AST VGA card use the following command:
SET GIFDESK=PARADISE
Notes: 1) The startup screen will notify you of the driver GIFDESK is using.
(the drivers are built into GIFDESK)
2) Several of the SVGA cards have not been tested...comments???
(Everex, Dell, ZyMOS)
Keys in GIFDESK:
"PgDn/PgUp" . .Next/Previous screen
"Esc" . . . . .Exit to DOS
"Space" . . . .Toggle Resolution (2x2->1x1->6x5->3x3->2x2...)
"Tab" . . . . .Skip to Next Pic
"." . . . . . .Write screen to GIF file
"Home". . . . .Go to first screen
"End" . . . . .Go to last screen
"+" . . . . . .Increase Resolution (SVGA only) (640x480->800x600->1024x768)
"-" . . . . . .Decrease Resolution (SVGA only) (1024x768->800x600->640x480)
"F10. . . . . .Toggle between grey and colour mode (SVGA only)
"F1,F2,F3,F4. .Change directly to 1x1,2x2 etc.
any other . . .Skip to GIF file with name starting with character
Examples:
Key Result
=== ===========================================
. Writes GIF file (named GIFDSKnn.GIF)
c Skips to first GIF file starting with c (e.g. CHEAPSEX.GIF)
7 " " " " " " " 7 (e.g. 7HEAVEN.GIF)
end Displays last set of GIF's (e.g ZAGNUT.GIF, ZIGGY.GIF, ...)
esc Exit the wonderful world of GIFDESK
Version History:
1.0 - Initial release, worked...kinda slow...
1.1 - Faster.
Allows keys during GIF decode.
Shows resolution even in 6x5 format.
2.0 - Super VGA support, promo screen, 1x1,2x2 format, better sizing!,
Writes GIF's!, 1st character key->filename, much more!
3.0 - Autodetect of SVGA. Colour-colour-colour!!! (on SVGA, GIFDESK now
shows GIFs in colour in all modes. Can still force to grey with
F10). Fixed 640x480x256 for C&T, Paradise, Trident, & Video 7.
3.1 - Some intermediate beta releases
3.2 - Tseng 4000 support, clear screen routine changed, vertical
interrupt detection modified.
GIF is a trademark of CompuServe Inc.
Have comments?
Jay Wherley
1006 Hidden Harbour Dr. #E2
Melbourne, FL 32935
(407) 242-5296 9-5 M-F
Finally, GIFDESK Was free, Is free, Always free.