home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
DP Tool Club 34
/
CDASC_34_1996_décembre.iso
/
ascanex
/
display.doc
< prev
next >
Wrap
Text File
|
1996-11-25
|
4KB
|
93 lines
GIF File Display Utility Revision 6 28-Sep-96
Copyright (c) 1989, 1996 by S. P. Thompson
This program will display GIF files on VGA or Super-VGA video adapters.
VESA BIOS extensions are used (if present) to enable the SVGA modes.
If VESA BIOS is not installed, only VGA modes are used. The program will
select the best mode available that provides enough colors to properly
display the image. If the image is larger or taller than the display
screen, the image is scaled and centered to fit the screen.
Revision History
================
19-May-93 Version 1.00 Initial Release
16-Jun-93 Version 1.01 Fixes bug in directory handling
11-Mar-94 Version 1.02 Adds VGA 640x480x16 mode support
03-Sep-94 Version 1.03 Fixes bug in handling certain VESA BIOSes, and
slow palette loading with an XGA card.
23-Oct-94 Version 1.04 Added /mn switch to allow selection of video modes
up to a maximum width of n pels.
16-Dec-94 Revision 5
Changed revision numbering system.
Fixed file read bug that caused end of file error on some images.
Replaced /mn switch with /maxH[xV] switch
Added image centering.
The original aspect ratio of the image is now preserved if the
image is scaled.
26-Sep-95 Revision 5a
Changed behavior on premature EOF (bad GIF file)
to stop and wait for keystrokes rather than clearing the screen
and complaining with an error message.
28-Sep-96 Revision 6
Updated the decompression algorithm for slightly improved
performance.
Program Package
===============
PKUNZIP is required to unpack the .ZIP file used to distribute the program.
The following files are included in the distribution package:
DISPLAY.EXE - program file that runs on an 80286 CPU or better
DISPLAY.DOC - this documentation file
Usage
=====
DISPLAY filespec.gif [/r] [/maxH[xV]]
* filespec.gif can contain wildcards
* Program will display each image and wait for the user to hit
the 'Enter' key.
* /r selects rolling demo mode - files that satisfy filespec.gif
are each shown, with a short pause between them. After all images
are shown, the cycle will repeat until Cntrl-Break is keyed.
* Cntrl-Break will abort and return to DOS while an image is being
painted.
* /maxH[xV] limits the screen resolution to H pels wide or H pels wide
by V scanlines high. This is useful for laptops that have a 640x480
panel size, but allow selection of 800x600 VESA BIOS modes.
Licensing & Distribution
========================
This program may be freely used. If you enjoy the program, and continue
to use it, a donation of $5 is appreciated to help defray the cost of
program development and maintenance. Those who send a $35 donation will
receive the C source code for the latest version (sent on a 3.5"
diskette via US mail or via COMPUSERVE). The program was developed using
Borland C++ version 3.1, but other C compilers may be used.
This program may not be sold, but shareware distributors may charge a
nominal fee for the distribution media. The program package must be
distributed in its entirety.
Please send donations (checks or money orders) and comments to:
Stephen Patrick Thompson
1039 Princeton Drive
Longmont, CO 80503
Compuserve ID: 71121,2752
Thanks for using the display utility, and I hope you enjoy it!