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-
- Reassigning Keystrokes on the Atari Portfolio
- by
- Carl Koop
-
- This files explains how to use the file ANSI.SYS, which
- can be found either here in the Portfolio SIG or in and DOS 2.0
- package, to create 'Hot Keys' so that any DOS command can be
- entered via a single keystroke or keystroke combination. The
- information contained in this file is applicable, not only to
- the Portfolio, but to any DOS with an ANSI.SYS available for it.
- I hope that you find this information useful and should you
- have any questions, I can be reached here on CompuServe.
-
- The ANSI.SYS file is an enhanced keyboard and display
- device driver which is available for DOS versions 2 and up.
- One of the more useful functions of the ANSI.SYS device driver
- is its ability to reassign values to individual keys on the
- keyboard. This can be especially useful if you tend to execute
- the same programs very often as it will enable you to load and
- start these programs with a single keystroke, similar to
- loading and starting the Portfolio's editor by pressing the
- 'Atari' key and the 'E' keys simultaneously.
-
- In order to reassign keyboard values you must first
- install ANSI.SYS into your system just as you would any other
- installable device driver (be sure to use a DOS 2.0 compatible
- ANSI.SYS file). This is done by modifying your CONFIG.SYS
- file so that the driver is installed automatically at boot
- time. For example, if your ANSI.SYS file is in your C:\DOS
- directory you simply add the following statement to your
- CONFIG.SYS file:
-
- device=c:\dos\ansi.sys
-
- Remember that in order for ANSI.SYS to be installed,
- and subsequently accessible, you must reboot after adding this
- line to your CONFIG.SYS file. Also worth remembering is that
- while installing ANSI.SYS can enhance your usage of your
- Portfolio, it will also use up some of the already precious, and
- somewhat limited memory available to you for program execution.
-
- Once ANSI.SYS has been installed into your system, you
- can now reassign standard keystrokes to new values. As is the
- case with all ANSI.SYS command sequences, reassignment sequences
- begin with an ESC (escape character) followed by a left bracket
- ([). The left bracket is followed by the ASCII code of the
- character of the key that is to be reassigned. This ASCII code
- is then followed by one or more additional ASCII codes. The
- key indicated by the first ASCII code will take on the value of
- the remaining ASCII codes in the command sequence. Each of the
- ASCII codes must be separated by a semicolon. Finally, the
- command sequence is terminated by a lower case 'p'.
-
- Before we get to an actual example, we must first learn
- how to enter an escape character into the command sequence
- since simply hitting the ESC key will not issue the appropriate
- code (when you do enter an ESC keystroke DOS will intercept it
- and immediately perform the processing that it feels is
- appropriate). We will use the DOS command 'PROMPT' to issue
- the escape sequence as that is the easiest method for our
- purposes. Now, finally, on to the example.
-
- Let's say that you want to be able to load and start a
- program called 'XTERM2' with a single keystroke, 'F1'. You
- would issue the following commands at the DOS prompt:
-
- prompt $e[0;59;"XTERM2";13p
- prompt
-
- The first line sends the command sequence, in this
- case the ESC ($e), the left bracket, the ASCII code for F1
- (0;59), the additional ASCII characters (we used a shortcut
- and simply entered a double quoted string), the ASCII code
- for a carriage return (13) and then terminated the command
- with a lower case 'p'. The second command resets the prompt
- to the default.
-
- At this point you should be able to press 'F1' and
- XTERM2 should load and start. Pretty nice, huh? But what
- do you do if you want to pass a parameter through on the
- command that starts your program? Well since you probably do
- not want to set up a keystroke for every possible parameter
- the best thing to do is eliminate the carriage return (13)
- from the ANSI.SYS command sequence which will simply display
- the command to the screen when you press the appropriate
- keystroke and then enter the parameter manually along with a
- carriage return.
-
- To make this whole operation as simple as possible,
- you can create a batch file that contains all of the keyboard
- reassignment commands that you want to have and execute it
- automatically at boot time. The commands could just as easily
- be made a part of your standard AUTOEXEC.BAT file.
-
- There are a few items that you should keep in mind
- when creating your own keyboard reassignment command
- sequences. First, when you issue a reassignment command
- the key remains reassigned until you either reassign it
- again, or reboot your system, therefore be sure to select
- keystrokes that you can afford to 'lose'. For example,
- many of the Portfolio's built in applications utilize F1
- through F5, if you reassign F1 as we did in the example
- above, even when you are in the editor, pressing F1 will
- result in the string 'XTERM2' being issued and not the
- standard F1 keystroke. When I reassign my keyboard, I
- typically use either the SHIFT or ALT keys in conjunction
- with the function key to avoid problems.
-
- Second, if you add keyboard reassignment command
- sequences to your AUTOEXEC.BAT file you will be forced
- to rename the AUTOEXEC.BAT file and before you reboot if
- you do not want the reassignments set up. My remedy for
- this is to keep a pair of .BAT files available on my C:
- drive, one to install the reassignments, and one to remove
- them. This way all I have to do is execute the appropriate
- batch file on the fly.
-
- Finally, you should keep in mind that ANY keystroke
- or combination of keystrokes can be reassigned. This can be
- dangerous if you enter your reassignment command incorrectly,
- so I advise you to be careful whenever you are doing
- reassignments. I have included a small table that shows
- the Extended ASCII codes for the various function key
- settings for your convenience, but you can find all of the
- other ASCII codes in just about any DOS manual (and a lot of
- other places too).
-
- I hope that you find this information useful and
- enjoyable. If you have any problems or questions regarding
- the use of the ANSI.SYS device driver for keyboard
- reassignment, please feel free to contact me via Compuserve.
-
- Carl Koop
- CIS ID: 73637,650
-
-
-
-
- Extended ASCII Codes
-
- Key Code Key Code
-
- F1 0,5 F2 0,60
- F3 0,61 F4 0,62
- F5 0,63 F6 0,64
- F7 0,65 F8 0,66
- F9 0,67 F10 0,68
-
- Shift/F1 0,84 Shift/F2 0,85
- Shift/F3 0,86 Shift/F4 0,87
- Shift/F5 0,88 Shift/F6 0,89
- Shift/F7 0,90 Shift/F8 0,91
- Shift/F9 0,92 Shift/F10 0,93
-
- Ctrl/F1 0,94 Ctrl/F2 0,95
- Ctrl/F3 0,96 Ctrl/F4 0,97
- Ctrl/F5 0,98 Ctrl/F6 0,99
- Ctrl/F7 0,100 Ctrl/F8 0,101
- Ctrl/F9 0,102 Ctrl/F10 0,103
-
- Alt/F1 0,104 Alt/F2 0,105
- Alt/F3 0,106 Alt/F4 0,107
- Alt/F5 0,108 Alt/F6 0,109
- Alt/F7 0,110 Alt/F8 0,111
- Alt/F9 0,112 Alt/F10 0,113
-
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