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                            Screen Edit Instructions
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To use Screen Edit it must be setup first. To do this use the following
commands from TRS/LS DOS READY :

                           SET *SE TO SEDIT/FLT
                           FILTER *KI TO *SE

                  Thats it! Screen Edit is operational now!
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                              Editor Command Keys
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The control keys used by the editor are fairly simple to use and easy to
remember and should be able to be mastered within a matter of seconds, or days
depending on that amount you use this program.

Command                            Action

CTRL E          - invoke EDIT, cursor character (_) will change to a ^ to
                  indicate that the editor is NOW ACTIVE.

UP ARROW        - will move the cursor 1 line up on the display

DOWN ARROW      - will move the cursor 1 line down on the display

LEFT ARROW      - will move the cursor 1 character to the left

RIGHT ARROW     - will move the cursor 1 character to the right

SHIFT RIGHT ARR - will move the cursor to the end of current line +1

SHIFT LEFT ARROW- will move the cursor to the start of the line

SHIFT UP ARROW  - will move the cursor to the top of the screen but it
                  will stay in the same column.

SHIFT DOWN ARROW- will move the cursor to the bottom of the display but
                  will leave it in the same column.

CLEAR D         - will delete (from the screen only) the character under the
                  cursor and close the line up accordingly.

CLEAR I         - will change the cursor (^) to a (|) character to
                  indicate that you are in the insert mode. Each character
                  typed in now will be inserted at that point and the line on
                  the screen will be moved apart to accomodate the new char.
                  If you continue to type the end of the line will scroll off
                  the video display and be lost. To exit from the INSERT mode
                  simply press the CLEAR I keys again and the cursor will
                  return to normal.

ENTER           - will indicate to the edit that you have finished editing and
                  will exit to the original position on the screen in which
                  the editor was activated. At the same time it will capture
                  from the extreme left side of the display to the position
                  of the editor cursor when enter was pressed.

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                           Additional Key Functions

CTRL W          - will return the captured line to the screen as if you had
                  just typed it in. This is the line on which the cursor was
                  situated when you pressed [ENTER] to exit the EDIT mode.

CTRL V          - will display the last entry you typed in and enter the edit
                  mode on that line. After you press the [ENTER] key to exit
                  this mode it will be automatically sent to TRS/LS DOS for
                  evaluation.

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Problems -

In the event you lose your cursor or can't seem to get the display to restore
try using a command in the program will exits to another menu and then returns
to the current screen. Usually the program will always restore the screen. If
not use either get your cursor back, use CTRL N, to disable it, use CTRL O.

Screen Edit will work with almost any program as long as they honor the TRS/LS
DOS keyboard routine (remember Screen Edit is a filter itself).

Also you may have some applications which use the very same keys as Screen Edit
to perform various functions. Use the PATCH file included and change the value
of the keys which SCREEN Edit uses to something you prefer.

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SYSGEN

If you install Screen Edit as per the instructions and then use the TRS/LS DOS
SYSGEN command it will be present whenever you re-boot the system. This
may or may not be exactly what you want to happen. I suggest you try using
it for a while without SYSGEN and see what uses it can for. Then if you
like it, SYSGEN it.

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Some example uses

Screen Edit can be used at the DOS command level to capture a filename off the
screen for working with. It can be used from within a BASIC program to 
renumber lines, moving lines, editing lines etc. As a matter of FACT you
can even invoke the editor while in the BASIC EDIT mode, go capture a line
and return and insert it where you are editing the current line. Remember it
captures the line you are on when you press [ENTER] so if you are on a BASIC
line number, and you change it, then move to the end of the line, and press
[ENTER], then type in CTRL W, BASIC will think you just added a new line number
to your program.

With the ability to recall the last entry you typed in, you can avoid having to
re-type some of those long-winded LS/TRSDOS commands. A short example would be
if you are using the SYSTEM command to insert a new floppy drive in the table
and you type in a line like this :

     SYSTEM (DRIVE=2,DISABLE,DRIVER="FLOOPY/DCT")     and press [ENTER].

As you can easily see the word FLOOPY/DCT isn't the proper filename for that
/DCT it's actually FLOPPY/DCT, so normally you would have to retype the WHOLE
line to get it right. NOT WHEN YOU HAVE SCREEN EDIT INSTALLED. Press the CTRL
and V key and the line will appear before you and the EDIT cursor will be at
the end of the line. Backspace until you are on the correct characters and
overtype (correct the spelling;i.e. change the second O to a P) then press
the SHIFT RIGHT ARROW to move the EDIT cursor to the end of the line and press
[ENTER], the new CORRECTED line will be displayed and it will execute as if
you had just typed it in.

Even a simple command like CAT 8 (where the incorrect drive number was used)
is a simple matter of using CTRL V and changing the 8 to the proper number
you wanted and pressing [ENTER].

Other uses will be simply up to you to remember that Screen Edit is a tool and
as with all tools if you don't use it, you won't find any advantages to
have it.

Probably the hardest thing to remember will be the fact that you can change
the mistake without having to retype it. It will take some practice.

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                             Additional Information
------------------------------------------------------------------------------

Screen Edit will only capture 1 line (80 characters) so don't try to grab
half a screen of info.

Screen Edit can also be used with Double DUTY to import data from one partition
to the other. It also works with PRONTO if you want to grab some stuff to
duplicate or export

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                            Technical Information
-----------------------------------------------------------------------------

Screen Edit is a program which I wrote in 1986 but added many features to
in 1987. I don't have any ideas for further enhancements, but if you have
some they are more than welcome.

Screen Edit is a /FLT or filter program which uses almost 1K of HIGH MEMORY.
If you have programs which read directly from the video display to get their
information, Screen Edit could be harmful. However there are so few of these
types of programs, you probably have very little to worry about. If you are
unsure about the program you are using, try it on a test file with that
program and see if you get any problems. I have used it with Visicalc, and
most of the "standard" Radio Shack programs without any problems.

Screen Edit holds the information which it captured until you replace it with
something new (using the EDIT or VIEW and EDIT) commands. Therefore if you
are doing the same operation over and over you can use Screen Edit or the
TRS/LS DOS command to repeat the operation. Of course with Screen Edit you
can modify the command easily before using it for the next time.

Programs which don't respect HIGH MEMORY will cause some damage to Screen
Edit so you may want to be aware of that. Most programs will inform you
of any conflicts.
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                           Patch File Information
-----------------------------------------------------------------------------
You may extract (or re-type) this information when you want to create a
custom version of Screen Edit using some key values you prefer instead of the
one that I have made as default. Of course to do this you will need to know
the values with respect to the keys you want to change it to. This can be
found in the TRSDOS Technical Reference Manual or simply by asking.

.Use this file like PATCH SEDIT/FLT USING MYCMDS/PAT and call the extracted
.file MYCMDS. Better idea to use this file on a backup of SEDIT/FLT as well.
.
.First is the ASCII value of the EDIT CURSOR where the x=the ASCII value.
D00,04="x"
F00,04="^"
.
.Next is the cursor to use for the INSERT mode. Again "x" = ASCII value.
D00,05="x"
F00,05="|"
.
.Next is the normal cursor for your opertaing system.
D00,06="x"
F00,06="_"
.
.We now get to the values in HEX to use for the various key functions.
.First is the value used to enable the edit mode. Shown is CTRL E.
D00,07=xx
F00,07=05
.
.Now the key value to display without a c/r, the captured line or portion.
.Shown is CTRL W.
D00,08=xx
F00,08=17
.
.The key value now to re-display the last entry and enter the edit mode.
.Shown is CTRL V
D00,09=xx
F00,09=16
.
.Now the key value to enable the cursor, shown is CTRL N.
D00,0A=xx
F00,0A=0E
.
.And last the key value to disable the cursor.
D00,0B=xx
F00,0B=0F
.
.END OF PATCH INFORMATION
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If you patch this file, please keep it for yourself since others may not be
aware of any changes you have made and find that this text file doesn't
match the program operation.
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                 Screen Edit is Copyright 1987 by Mel Patrick

Other TRS/LS DOS software may be obtained by calling the my BBS at
(604) 594-7398, 300/1200. If you have any comments, you may write directly to
me at : Mel Patrick:13699 70A Ave.:Surrey, B.C.:Canada, V3W 2J8

Although this program is copyright, I am placing it in the public domain for
others to use and enjoy. This is NOT a shareware product.
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