Article 3264 of comp.sys.amiga:
Path: mcdsun!noao!hao!hplabs!sri-unix!husc6!seismo!mcvax!inria!rouaix
From: rouaix@inria.UUCP (Francois Rouaix)
Newsgroups: comp.sys.amiga
Subject: Snapshot-screen dump utility
Message-ID: <434@inria.UUCP>
Date: 4 Apr 87 17:34:30 GMT
Organization: INRIA, Rocquencourt. France
Lines: 62


           SNAPSHOT

This is a small utility for dumping screens on files. I am sure there is
already a thousand of other versions, but this one is somewhat special.
It uses an interrupt (just like POPCLI -Real thanks to John Toebes).
When you press Ctrl-Esc, SNAPSHOT will try to find any BitMaps in memory.
If you read carefully the RKM and all the include files, you will notice
that bitmaps may be found from ViewPorts only.
So there are two options:
   -g : search memory from GfxBase
   -i : search memory from IntuitionBase.
I can't say at the moment if there is any difference, so I keep the two
options.

SNAPSHOT saves the pictures in IFF format, using the Fish16 library.
It saves the colours too. (yes there is a bug in PutPict which wants a
ColorTable instead of a ColorMap).
It should be okay with dual playfields, but i never tested.

Afterwards, you may edit the picture with DPaint or your favorite paint
program.

SNAPSHOT may be used with many games , assuming the game disk is a system
disk that is approximately standard.

Examples:  Borrowed Time, MindShadow, Defender of the Crown (yes !),
            ChessMaster2000
Not working (yet) with The Pawn that apparently short-circuits all system
functions.


Some Notes:
- the name of the picture file is generated from the ViewPort address
- SNAPSHOT saves the picture(s) in the directory where you runned it. You
may use vd0: if you have it (and paid for it of course...), or any disk.
   IMPORTANT NOTE: after a (re)boot, the current directory in the Initial
Cli is df0: which is different from sys: . As a consequence, if you run
SNAPSHOT, insert your game disk, run the game, df0: will then be the
game disk which is not what you want.
- you cannot stop or kill SNAPSHOT
And last but not least:
   Despite all my efforts, I couldn't get SNAPSHOT working with expansion
memory. Any help for this will be great.
So you may of course use HIDE (this looks like self-advertisement..)
before you run SNAPSHOT and then return to normal when SNAPSHOT is running.

Let's try now: run snapshot -g and Ctrl-Esc when you are ready.

Final Note: considering a screen enhanced with morerows, the resulting
picture may be considered as INTERLACE by seeilbm.



Please send any comments/bugs/suggestions/flames to
      ...{seismo..}!mcvax!inria!rouaix

SNAPSHOT may be freely distributed as long as the Copyright message is not
modified. It may not be sell or used in another product without my written
permission.
I disclaim all responsability in illegal uses of this program or any damage
resulting from silly or inconsiderated or even normal use of this program.