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1994-03-09
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Documentation for PIC_VIEW.BAS
A DEGAS PI1, PI2 and PI3 picture viewer
for IBM compatible computers with VGA
Copyright(c)1994, Merrick J. Stemen.
CServe 70670,2522
All rights reserved.
This product is shareware.
Please pay the author for his efforts to
bring ATARI graphics to the IBM community!
PURPOSE:
PIC_VIEW is a program written using Microsoft QBASIC, and designed to
display multiple DEGAS .PI1, .PI2 and .PI3 files created on ATARI
computers.
SYSTEM REQUIREMENTS:
PIC_VIEW makes use of IBM EGA and VGA modes to display these DEGAS
files; therefore, the minimum graphics requirements for your system
must be a VGA graphics card. Since the program runs in the QBASIC
environment, you must also have Microsoft QBASIC (commonly shipped
with DOS on your computer.)
RUNNING PIC_VIEW:
To activate PIC_VIEW.BAS, simply type:
QBASIC PIC_VIEW
at your DOS prompt. if PIC_VIEW is in another sub-directory, or on
another disk, you may need to type something like:
QBASIC A:PIC_VIEW
or
QBASIC \ATARI\PIC_VIEW
Once the program has loaded, you will be put into the QBASIC editor.
Simply press SHIFT-F5 to activate PIC_VIEW.
USING PIC_VIEW:
Once PIC_VIEW is started, it prompts you to enter a "pathname" to
search. You should enter the full pathname EVEN IF THE PICTURES YOU
WANT TO VIEW ARE IN THE SAME DIRECTORY!
For example, if your picture files are in the \ATARI sub-directory,
type:
Please enter the search path? \ATARI\*.PI?
This is the most common way to view multiple picture files. The '*'
is known as a "wildcard" character. It tells PIC_VIEW to get every
file that ends in '.PI?'. The '?' is also a wildcard character. It
tells PIC_VIEW that it should display any PI1, PI2 or PI3 files.
Once PIC_VIEW begins displaying files, it will pause after each one
until you press a key (usually the space bar). After all pictures
have been viewed, PIC_VIEW will return to the QBASIC editor.
IMPORTANT! Since PIC_VIEW is in the QBASIC environment, any changes
you accidentally or purposely make to the program will take effect
immediately. Make a backup of your original PIC_VIEW.BAS file if
you intend to experiment with PIC_VIEW's code.
QUITTING PIC_VIEW:
When you are finished viewing pictures, Press ALT-F, and then simply
type X. This will EXIT the QBASIC environment, and return you to the
DOS prompt.
OTHER ATARI-FORMAT PICTURE VIEWERS ARE AVAILABLE.
LOOK FOR:
PCV_VIEW.............a DEGAS PC1 file viewer.
TNY_VIEW.............a TN1, TN2 and TNY format viewer.
NEO_VIEW.............a NEO format file viewer.
DE_SPC...............a SPECTRUM 512 SPC file decoder.
SPC_VIEW.............the SPECTRUM 512 decoded SPC/SPS file viewer.
DE_SPS...............a SPECTRUM 512 SPS file decoder.
SPS_VIEW.............the SPECTRUM 512 decoded SPS file viewer.
ACKNOWLEDGEMENTS:
This product would not have been possible without the information
found in David Baggett's format information (both 10/19/1989 and
9/29/1992). The name Shamus McBride also deserves mention for
his efforts in Baggett's document as well!