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-
- Gear Sub-Menu F7 Detailed Help Notes
-
- "Directory of output files."
- Provides an easy way to see what files already exist.
- The user is prompted to edit the mask or if "Enter" is
- pressed the current mask will be used.
-
- "File to act on."
- This is the file name that this page will use to write to,
- print, or delete.
-
- "Save current gear chart output to file "
- Writes the calculated gear inch values as determined
- on F5 "File to act on".
-
- WARNING:
- THERE MUST BE ENOUGH AVAILABLE MEMORY IN YOUR MACHINE
- FOR THE FOLLOWING TO WORK. (If you are calling this
- program from another there may not be enough left
- for these to dynamically use the extra memory that
- they need.)
-
- "View file"
- Allows the user to look at the data without going to DOS.
-
- "Erase file"
- Deletes the file if it is found. No caution is provided.
- WARNINGS:
- 1. It just deletes the file. No "are you sure" stuff
- here! ( Just write it again.)
- 2. If the command to "Erase" the file is given too soon
- after the "Print" command then it is likely that
- only part of the file will be printed.
- If the file is a longer file then the DOS "print"
- buffers and the printer's buffers then the file
- will be deleted before it gets to the printer.
- (This is true unless you are using a more
- sophisticated "spooling" print queue utility than
- the standard DOS one.)
-
- "Print file"
- Passes the name of the file to the DOS "print" queue buffer.
- The second warning under "Erase" applies here in addition
- to the following...
- WARNING: this can have unwanted side effects!
- If the DOS "print" queue buffer was not previously run
- or set up before this program was loaded then DOS sets
- up the "print" queue buffers in the memory after the
- memory this program is using. Then when this program is
- exited DOS will not recover the program memory because the
- "print" buffers were loaded after it. The only (normal)
- way to recover this memory is to reboot as DOS cannot
- recover fragmented memory.
- (This problem may be avoided by allocating memory
- at boot time by placing the following two lines in your
- autoexec.bat file:
- "mode LPT1:
- print/d:LPT1"
- The exact form of this may vary slightly from clone to
- clone so see the DOS "mode" and "print" commands for
- your machine.)
-
- "Copy file..."
- Uses the DOS "copy" command to copy the file to the
- DOS device "lpt1" which is normally the printer.
- Use this instead of "Print" to avoid the memory buffer
- problems mentioned above. (A possible penalty here
- is that it may tie up the machine longer while the
- file is being printed. This depends on the file length
- and the length of the printer's hardware buffer.)
-
-
- "Open a door to DOS"
- If enough memory is available the program will be temporarily
- suspended and the user will be able to access DOS directly
- to do whatever they wish. To get back into the program
- hit "Enter" without typing any other characters at the
- prompt.
-