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- GRABEGA Page 1
- Command
- ------------------------------------------------------------
-
- Purpose: Capture an EGA graphics screen to a disk file in a
- format compatible with RIX SoftWorks' EGA Paint 2005
- and with EGA2GIF by SPARKS.
-
- Format: [d:path\]grabega [/480]
-
- Type: External
-
- GRABEGA Version 3.0 22oct87
- Copyright 1987 by Ray L. McVay (all rights reserved)
-
- S P A R K S
- 1609 Tulip Drive
- Arlington, TX 76013-4915
- CIS 75006,2563
-
- Remarks:
-
- GRABEGA is a TSR (terminate and stay resident)
- utility that captures EGA 320x200, 640x200, 640x350
- and 640x480 graphic screens to files formatted like
- uncompressed EGA Paint screen files. When run, it
- prints a sign on message and loads the resident
- portion of the program which occupies about 2700
- bytes of memory. It has been used concurrently with
- EGA Paint 2005, Sidekick, CED, STACKEY, CTRLALT and
- EGABLANK2 with no problems but is incompatible with
- BASIC interpreters, QuickBASIC, SYMDEB and Code
- View. Running one of the incompatible programs with
- GRABEGA resident will cause your computer to lock up
- and require the "big red switch" to recover.
-
- In general, you should treat GRABEGA as a special
- purpose utility to be loaded and used only when
- needed. Save yourself a lot of grey hair and always
- reboot your computer when you are finished using
- GRABEGA or any other special purpose resident
- software.
-
- To activate GRABEGA and save a screen you rapidly
- press and release the left shift key twice. If all
- is well you will see activity on the default disk
- drive and hear a normal BEEP when GRABEGA is
- finished. Wait until you hear the BEEP before
- moving a mouse cursor around the screen or your
- screen image will be corrupted.
-
- If GRABEGA cannot save the screen then it will make
- an odd noise and ignore the keystrokes. There are
- two main reasons GRABEGA will not be able to save a
- screen: 1. The screen is not in one of the
- recognised EGA graphics modes. 2. The program that
- is running is executing an un-interruptable DOS or
- BIOS function.
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- GRABEGA Page 2
- Command
- ------------------------------------------------------------
- The files written by GRABEGA vary in size from 32016
- bytes to 153616 bytes depending on the type of
- screen it is saving. The files all have names
- following the pattern EGASCRNx.SCy where the "x" in
- the pattern will change with each screen to produce
- a unique name. The "y" is set automatically
- according to the size of the screen being saved as
- shown in the following table:
-
- D 320 x 200, EGA mode 13 (not an EGA
- Paint format)
- E 640 x 200 EGA mode 14
- R 640 x 350 EGA mode 16
- P 640 x 480 extended EGA mode inabled
- by using /480 option
-
- For example, the first 640x350 screen saved will be
- EGASCRNA.SCR, then EGASCRNB.SCR, etc. These files
- are written to the current working directory of the
- default disk drive.
-
- GRABEGA uses a little known feature of the EGA BIOS
- called the "dynamic save buffer" to determine the
- palette settings of the EGA at the time of the
- screen capture. Programs that alter the EGA palette
- settings by writing directly to the registers on the
- adapter card will probably produce captured screens
- with invalid colors. Microsoft WORD is the only
- example of this behavior that I've found so far.
-
- The files produced by GRABEGA can be converted to
- CompuServe Graphic Interchange Format (GIF) picture
- files by the EGA2GIF utility included in this
- package. All but the 320x200 screens can also be
- read and edited using EGA Paint 2005 by RIX
- SoftWorks.
-
- TSR Shell Credit:
-
- Much of the stability of GRABEGA is due to the fine
- TSR shell copyrighted 1987 by Thomas Brandenborg,
- Lundbyesgade 11, DK-8000 Aarhus C, DENMARK.
-
- Shareware license:
-
- You are granted a non-exclusive license to use
- GRABEGA for your personal enjoyment. You may not
- sell GRABEGA or include it with other software you
- offer for sale. If you use GRABEGA regularly
- because it fills a unique graphics need then a $10
- donation to SPARKS, 1609 Tulip Dr., Arlington, TX
- 76013 would be appreciated. If GRABEGA is used in a
- commercial environment then it MUST be licensed for
- $10 per active copy. Contact SPARKS for details on
- site licenses, custom versions and GIF applications.
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- GRABEGA Page 3
- Command
- ------------------------------------------------------------
- SPARKS also offers shareware versions of EGA2GIF (a
- GIF encoder) and EGAGIF (a GIF viewer). These also
- carry shareware contrbution or commercial licenses
- of $10 per package. Any two of these may be
- licensed for $15 and all three may be licensed for
- $20.
-
- Graphics Interchange Format and GIF are trademarks of
- CompuServe, Inc. an H&R Block Company. EGA Paint 2005 is a
- trademark of RIX SoftWorks, Inc. QuickBASIC, SYMDEB and Code
- View are trademarks of Microsoft.
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