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-
-
- GR2GIF (tm)
- GR2PCX (tm)
- GR2PIC (tm)
-
- *********
-
- Graphics Conversion Utilities for use with
- the GRABBER (tm) Screen Capture Program
-
- DOCUMENTATION
- May 10, 1991
-
- Copyright 1991 by
-
- Gerald A. Monroe
- 1241 Bunts Road
- Lakewood, Ohio 44107 U.S.A.
-
- CompuServe Mail ID # 72321,1257
-
-
- YOUR LICENSE TO USE THIS SOFTWARE
- ----------------------------------
-
- GR2GIF.COM, GR2PCX.COM, GR2PIC.COM and this documentation are
- Copyright 1991 by Gerald A. Monroe. All rights are reserved
- except those expressly granted here.
-
- The programs GR2GIF, GR2PCX and GR2PIC, and this documentation file,
- are distributed as an integral part of the GRABBER (tm) screen capture
- package under the terms of a shareware license that is fully set forth
- in the file GRABBER.DOC, which is the instruction manual for GRABBER
- .COM, the main program module in the package.
-
- The shareware license terms in the GRABBER.DOC file are incorporated
- here by reference. This license permits you to copy and distribute
- the files GR2GIF.COM, GR2PCX.COM, GR2PIC.COM and CONVERT.DOC (this
- file) freely, provided that: these files are always distributed
- together with each other and with the GRABBER.EXE and GRABBER.DOC
- files; none of the files is modified in any way; and no fee, premium
- or donation of any kind is charged or requested for their distribu-
- tion except as permitted on the terms described in the GRABBER.DOC
- file.
-
- Continued use of the GR2GIF, GR2PCX or GR2PIC programs for more than
- a 10-day trial period requires you to register your use of the soft-
- ware with the author. For more information about the benefits of
- registration and how to go about registering, please refer to the
- full licensing and ordering information in the GRABBER.DOC file.
-
-
-
- GR2GIF /GR2PCX /GR2PIC Documentation Page 2 of 7
-
-
-
-
- WHAT ARE GR2GIF, GR2PCX and GR2PIC?
- ------------------------------------
-
- GR2GIF, GR2PCX and GR2PIC are companion utilities to the GRABBER
- screen capture program. You can use them to convert graphic images,
- captured from your video display in the form of GRABBER "offspring"
- files, into any of three widely recognized generic image formats
- called GIF, PCX and PIC.
-
- (If you are unfamiliar with how the GRABBER program works, or
- what a GRABBER offspring file is, please consult the program
- manual GRABBER.DOC before continuing.)
-
-
-
-
- ABOUT THIS DOCUMENTATION
- -------------------------
-
- These three GRABBER companion utilities are described together in
- this one document because each is operated identically to the others.
- The only difference between these programs is in the structure of the
- files they create.
-
- For this reason, and for the sake of simplicity, the command examples
- which are used in this document make use of the GR2GIF.COM program
- exclusively. GR2GIF creates GIF files from GRABBER offspring files.
- If you want to create a PCX file with GR2PCX, or a PIC file using
- GR2PIC, then you can substitute the appropriate program name wherever
- the examples below refer to GR2GIF.
-
- Instructions for using these programs are detailed below, beginning
- on page 5. Briefly, you tell GR2GIF/PCX/PIC the name of the GRABBER
- offspring file you wish to convert, and (optionally) the name of the
- file to which to save the GIF/PCX/PIC rendition of your original
- offspring file. The program then goes to work, extracting the binary
- screen image information from the offspring file, encoding it in the
- appropriate format, and saving the results to the second file.
-
-
-
- GR2GIF /GR2PCX /GR2PIC Documentation Page 3 of 7
-
-
-
- THE "GIF" FILE FORMAT
- ----------------------
-
- "GIF" is pronounced like "Jif," and it stands for "Graphic Interchange
- Format."
-
- The GIF image format was developed by CompuServe, Inc., as a
- generalized method of exchanging and displaying graphic images on
- the widest possible variety of computer graphics hardware. GIF is
- probably the most widely accepted format for exchanging graphics
- information among all makes and models of microcomputers, whether
- IBM-compatible or not. If there is a "standard," then GIF is it.
- One of the reasons for the popularity of the GIF format is its
- very effective data compression method. Generally, there is no
- other widely used file format which can compress a graphic image
- into a smaller space than GIF can.
-
- The GIF format is supported extensively on the CompuServe Information
- Service and many other on-line BBS services that make graphic images
- available for downloading. In addition to these on-line services,
- however, there are several PC application programs which can employ
- the GIF format. These include word processing, desktop publishing,
- and "paint" programs, as well as numerous picture viewing utilities.
- Therefore, you can use GR2GIF to convert almost any graphic image
- captured by GRABBER into GIF format, so that the image can be imported
- into any word processing, desktop publishing, or paint program which
- "understands" the GIF format. If you want to find out whether a
- particular application program you use can work with GIF files, and
- therefore import the files created by GR2GIF, you should consult that
- program's documentation or contact its publisher.
-
-
- THE "PCX" FILE FORMAT
- ----------------------
-
- The PCX image format was developed by Zsoft Corporation, which is the
- publisher of the widely used graphics "paint" programs PC Paintbrush
- and Publisher's Paintbrush. Both of these programs use the PCX format
- for storing and retrieving graphic images to and from disk files.
- However, many other PC applications which involve graphic data, in
- addition to the two Zsoft products mentioned, also employ the PCX
- format. These include other paint programs, word processors such as
- WordPerfect Version 5.0 and above, desktop publishing programs, and
- picture viewing utilities. The PCX format uses a data compression
- scheme to reduce the disk space required to store graphic images.
- You can use GR2PCX to convert almost any graphic image captured by
- GRABBER into PCX format, so that the image can be imported into any
- word processing, desktop publishing, or paint program which "under-
- stands" the PCX format. If you want to find out whether a particular
- application program you use can work with PCX files, and therefore
- import the files created by GR2PCX, you should consult that program's
- documentation or contact its publisher.
-
-
-
- GR2GIF /GR2PCX /GR2PIC Documentation Page 4 of 7
-
-
-
- THE "PIC" FILE FORMAT
- ----------------------
-
- The PIC image format resembles the PCX format in its origins as a
- method of storing "paint" program images. The PIC format is employed
- by such programs as EGA Paint, PC Paint and PC Paint Plus, and the
- PICTOR and GRASP programs, as well as other paint programs. Like GIF
- and PCX, the PIC format uses a unique data compression scheme to save
- disk space. You can use GR2PIC to convert almost any graphic image
- captured by GRABBER into the PIC format, so that the image can be
- imported into any word processing, desktop publishing, or paint
- program which "understands" the PIC format. If you want to find out
- whether a particular application program you use can work with PIC
- files, you should consult that program's documentation or contact its
- publisher.
-
-
-
- WHAT GR2GIF/PCX/PIC CAN CONVERT
- --------------------------------
-
- These programs are able to convert almost any GRABBER offspring file
- containing a graphic image into a separate GIF, PCX or PIC file.
- This includes any image originally captured in any CGA mode, any EGA
- mode, any VGA mode, and the Hercules monochrome graphics mode.
-
- These programs cannot be used to convert text-mode images to GIF,
- PCX or PIC files.
-
- On page 4 of the GRABBER program documentation, there is a list of
- the various video modes which GRABBER supports. If a video mode
- in that chart indicates "n/a" in the column which is headed "Graphics
- Resolution," then that is a text mode, and GRABBER offspring files
- captured in that mode cannot be converted to GIF, PCX or PIC. The
- other modes shown there can be converted.
-
- Note for the technical-oriented user: If you have a Super-VGA (SVGA)
- adapter, you should read page 5 of the GRABBER program documenta-
- tion. Generally, any 16-color or 256-color SVGA image can be con-
- verted to the GIF, PCX and PIC formats using these programs if the
- SVGA manufacturer has modeled the memory organization of its video
- modes after the IBM EGA "four-plane planar" method (for 16-color
- screens), or IBM VGA "packed pixel" method (for 256-color screens).
- SVGA memory organization schemes which are unique to certain adapters
- are generally not supported by these conversion programs. An example
- of such a mode is the one numbered 67h for 1,024 x 768 16-color
- images on the ATI VGA Wonder adapter.
-
-
-
- GR2GIF /GR2PCX /GR2PIC Documentation Page 5 of 7
-
-
- USING GR2GIF/PCX/PIC : INTERACTIVE MODE
- ----------------------------------------
-
- First, choose a GRABBER offspring image you want to convert. The
- offspring file must contain a graphic image.
-
- From the DOS prompt (or in a batch file), enter the command GR2GIF
- and press <RETURN>. The program asks you to specify the name of the
- offspring file you wish to convert (the "input file"). You may
- optionally precede the filename with a drive and/or pathname if
- necessary.
-
- (Note: All GRABBER offspring files should have the file extension
- ".EXE", and these conversion programs assume that your input file
- ends in ".EXE". You may omit this extension when entering the
- file name. For example, entering "SCREENXX" is the same as enter-
- ing "SCREENXX.EXE".)
-
- Next, the program asks for the name of the file you wish to create
- from the offspring image (the "output file"). If you wish to give
- your output file the same name as your input file but with a ".gif"
- (or ".pcx" or ".pic") extension, just press <RETURN>. If you wish
- to give it a different name than the default which the program shows
- you, or place it in a different drive or directory than your input
- file, you must enter the full file specification, including drive,
- path, and ".gif" extension.
-
- (NOTE: Do not give the output file an ".EXE" or ".COM" extension.
- GIF, PCX and PIC files are not executable programs like the original
- offspring file, and attempting to execute them like one will certainly
- "crash" your computer.)
-
- Finally, the program asks if you want to "resize" the image. If you
- respond by pressing <N> or <RETURN>, then the program will convert the
- entire image to GIF, PCX or PIC format. The resulting file will in-
- clude image data for the entire screen as it appears on your display
- when you execute the .EXE offspring file.
-
- If you don't want to convert the entire image to GIF, PCX or PIC
- format, but wish to convert only a portion of it, then you should
- respond to the "resize" prompt by pressing <Y>. GR2GIF will display
- the offspring image on your screen along with a highlighted "select
- box," which you use to tell the program which rectangular portion of
- the image to save to GIF, PCX or PIC format. Instructions for moving
- the select box around the screen, and changing its size or shape, can
- be found below on page 6.
-
- After you respond to the "resize" prompt by pressing <N> or <RETURN>,
- or finish resizing the image (if you pressed <Y>), the program goes
- to work, creating your output file from the original offspring. This
- usually takes only a few seconds. When the program is finished
- creating your output file, it displays a message to this effect. This
- newly created GIF, PCX or PIC file is now ready for you to use.
-
-
-
- GR2GIF /GR2PCX /GR2PIC Documentation Page 6 of 7
-
-
-
- USING THE RESIZE FEATURE: CONTROLLING THE SELECT BOX
- ------------------------------------------------------
-
- The following keys are available to you when using the resize feature
- feature within GR2GIF, GR2PCX and GR2PIC:
-
- <Esc> . . . . . . . . . . . . Abort the conversion process and exit.
-
- <Return> . . . . . . . . . . Accept the area enclosed by the select
- box, and begin converting.
-
- <Left Arrow>
- <Right Arrow> Move the select box in the indicated
- <Up Arrow> direction without changing the shape
- <Down Arrow> . . . . . . . . of the box.
-
- <Shift><Left Arrow> . . . . . Shrink the box horizontally.
-
- <Shift><Right Arrow> . . . . Expand the box horizontally.
-
- <Shift><Up Arrow> . . . . . . Shrink the box vertically.
-
- <Shift><Down Arrow> . . . . . Expand the box vertically.
-
- <Insert> . . . . . . . . . . Toggle between coarse and fine incre-
- ments for moving or reshaping the box.
-
- <Home> . . . . . . . . . . . Move the box to the upper left-hand
- corner of the screen.
-
- <End> . . . . . . . . . . . . Move the box to the lower left-hand
- corner of the screen.
-
- <Ctrl><PgUp> . . . . . . . . Move the box to the upper right-hand
- corner of the screen.
-
- <Ctrl><PgDn> . . . . . . . . Move the box to the lower right-hand
- corner of the screen.
-
- <PgUp> . . . . . . . . . . . Move box to top edge of the screen.
-
- <PgDn> . . . . . . . . . . . Move box to bottom edge of the screen.
-
- <Ctrl><Left Arrow> . . . . . Move box to left edge of the screen.
-
- <Ctrl><Right Arrow> . . . . . Move box to right edge of the screen.
-
-
-
- GR2GIF /GR2PCX /GR2PIC Documentation Page 7 of 7
-
-
-
- USING GR2GIF/PCX/PIC : COMMAND LINE MODE
- ------------------------------------------
-
- You can also run the conversion programs by placing both the input
- (offspring) and output (GIF, PCX or PIC) filenames on the DOS command
- line after the program name itself. Use this example:
-
-
- GR2GIF [d:][\path\]SCREENXX[.EXE] [d:][\path\][SCREENXX.GIF] [/S]
-
-
- The parameters shown within [brackets] are optional.
-
- To use the resize option (described above) in command-line mode,
- include the /S switch on the GR2GIF command line. If you omit
- the /S switch, the entire image will be converted to GIF format.
-
- The first [d:] stands for the disk drive where your offspring
- program file is located, and the first [\path\] stands for the
- directory in which it resides. In the above example, SCREENXX.EXE
- is the name of the GRABBER offspring file containing the image you
- want to convert. As above, ".EXE" extensions may be omitted.
-
- The second [d:] and [\path\] stand for the drive and directory in
- which to place your converted output file. If you omit the output
- filename, the program will supply a default for you, and create your
- GIF/PCX/PIC file on the same drive and directory as your input file,
- giving it the same name as the input file but with a ".gif" (or ".pcx"
- or ".pic") extension in place of the ".EXE".
-
- Another example. Entering:
-
- GR2GIF C:\PICTURES\SCREEN00 /S
-
- has the same effect as entering:
-
- GR2GIF C:\PICTURES\SCREEN00.EXE C:\PICTURES\SCREEN00.GIF /S
-
-
-
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-
-
- ** End of CONVERT.DOC **
-