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- INTRODUCTION
-
- SNATCH is a terminate and stay resident utility (TSR) that allows
- you to create pictures for your Portfolio using your favorite paint
- program. While this utility is not terribly fast (it uses the BIOS)
- or terribly small (it was written in C), it will capture images from
- CGA, EGA, MCGA, and VGA graphic adapters on your desktop PC. Don't
- run SNATCH on your Portfolio. Hideous, odious and downright vile
- things might happen.
-
-
- HOW TO SNATCH
-
- First, from the DOS prompt on your PC, type SNATCH and hit return.
- OK, have you done that yet? Good, we're on a roll. Snatch is now
- lurking in your computer - waiting to be activated. Now go into your
- favorite paint program (I use Deluxe Paint II Enhanced) and draw a
- picture in the UPPER LEFT HAND CORNER. The image size, in pixels,
- should be no larger than a Portfolio screen - 64 vertically by 240
- horizontally.
- Now, here comes the esoteric part, SNATCH assumes that whatever is
- in palette register 0 is the color black. All other registers are
- considered to be the color white. Just use the default pallete
- mapping of the IBM, give yourself a white background to start with
- and draw with a black brush. Do this and you won't have any
- surprises.
- Once you have created your masterpiece and you're ready to save it,
- press the <ALT-S> key combination. That's the ALT key and the S (for
- SNATCH) key. The SNATCH software intercepts the keystroke, determines
- if you're using a valid graphics mode, opens a file in the current
- directory, writes out the image, closes the file, gives you two
- reassuring high pitched beeps, and returns control to your paint
- program.
- If you try to call up snatch and you are not in a valid graphics
- mode, you will hear a low and slow beep. For example typing <ALT-S>
- at the DOS prompt will produce the above circumstances. Also, don't
- SNATCH pictures if you're running in a Super-VGA mode or with a
- Hercules adapter.
- SNATCH creates files called, guess what, SNATCHxx.PGF. The xx field
- will start at 00 and run all the way up to 99. Whaen SNATCH does a
- save, it always tries to open the 00 file first. If that file already
- exists, it tries with 01 and so on until a unique file name is found.
- That's all there is to SNATCHing. Just remember a few basic rules:
-
- 1) Use the upper left hand corner to paint your picture
- 2) Always use a white background
- 3) Always paint with a black brush
-
- A few hints: since you're dealing with a pretty low res screen on
- your Port, use a low res mode in your paint program. It makes those
- pixels a lot easier to see.
- Draw an outline of the port picture size (64X240) in the upper left
- hand corner so that you'll always know what part of the picture will
- be saved.
-
-
- WHAT'S IN THIS ZIP FILE
-
- This file assortment includes the SNATCH.EXE image capturing TSR,
- this doc file, and three images that I painted using Deluxe Paint II
- Enhanced and captured to PGF files using SNATCH.
-
-
- GUARANTEES
-
- Forget it. This is freeware. No guarantees are implied or explicit.
- If you don't like this software, don't use it. If you do, then upload
- some of your images and share them with us.
-
-
- ACKNOWLEDGEMENTS
-
- If it wasn't for Don Messerli, there would be no way to view PGF
- files on the Portfolio. Thanks Don. Also, thanks to BJ Gleason, the
- author of PBASIC, whose tireless support of the Portfolio has been an
- inspiration.
-
-
-
- ə