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README.11
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1988-10-30
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SHADOW version 1.1 Enhancements
================================
Most of the enhancements in SHADOW version 1.1 are not available from within
Flash 1.6. Most notably Flash 1.6 cannot find SHADOW when SHADOW is installed
in the NON RESET-PROOF mode. The next version of Flash will incorporate all the
new features. In the meantime, all of the features are usable when SHADOW is
run as an accessory or a GEM program.
SHADOW Accessory
================
The SHADOW desk accessory is renamed from SHADOW.ACC to SHDW_ACC.ACC to avoid a
name conflict when the desk accessory is used as a GEM program.
By renaming SHDW_ACC.ACC to SHDW_ACC.PRG, you can run the SHADOW accessory
as a GEM program, thereby allowing you to access SHADOW without having the
desk accessory installed all the time.
NON RESET-PROOF MODE
====================
SHADOW can now be installed as NON RESET-PROOF. When installed this
way, SHADOW only reserves enough memory for the transfer handler, not
the transfer buffer. When a transfer is desired, you allocate the size
of the buffer you need. When the transfer is completed, you can
deallocate the memory used for the transfer buffer.
To install SHADOW as a NON RESET-PROOF handler, simply specify a RAMdisk
and transfer buffer size of zero (0) in your SHADOW.INF file, on your
desktop icon, or on startup using the 'on the fly' startup keys.
If SHADOW is installed this way, you will be prompted for the file transfer
buffer size before each file transfer, unless the buffer remains intact
from a previous transfer (i.e., it has not been deallocated). If the
transfer buffer is intact, you will not be prompted, but you can still
change the size (see "Changing Options" below).
You can also install SHADOW with a RAMdisk and no transfer buffer. When
installed this way, you have a RESET-PROOF RAMdisk, but the transfer buffer
is NON RESET-PROOF. You will be prompted for the transfer buffer when you
start a transfer, and you can alter the transfer buffer size (see "Changing
Options" below).
NOTE:
You CANNOT allocate a transfer buffer from the SHADOW accessory being
run as a program when the handler is installed with the SHADOW RAMdisk.
You CAN allocate a transfer buffer if allocating from the desk accessory.
NOTE:
When you have SHADOW installed as a NON RESET-PROOF handler, it will
be erased during a reset. All data in the buffer will be lost. DO NOT
press the reset button unless you don't mind losing the data in the
transfer buffer!
Changing Options
================
Three new options are configurable from SHADOW, these are the current timeout
value, the buffer size (NON RESET-PROOF mode ONLY), and the on-screen
counter location.
To get to the Options menu, click on the transfer buffer size button from
the main menu (contains text such as 100K) or press the 'O' (Options) key.
While in the terminal mode press the ALT-O keys simultaneously.
NOTE:
Version 1.01 used 'W' (Wait) for this button from the main menu,
this version uses 'O' (Options) instead.
You will be presented with a dialog box asking you 'Choose What to Set,'
with three buttons to select:
Timeout - click on this to set the current timeout value. You will
be presented with a dialog box asking you to 'Enter New
Can also be Timeout.' Enter the new value in seconds. You cannot
accessed by enter below 10 seconds. Click on Okay, or press the
pressing letter 'O' key, or <RETURN>. Press the right mouse button
the 'T' key or <UNDO> key to not set the value.
Buffer Size - click on this to set the transfer buffer size. The top
line will tell you the 'Largest Memory Blk' (block) in
Can also be Kilobytes that you can allocate. If you currently have a
accessed by buffer allocated, its size will be indicated on the second
pressing line. It is possible (if memory is not fragmented) that
the 'B' key you can add the two values together to compute the
maximum available free memory. To truly determine the
maximum free memory, enter a buffer size of zero (0),
press the <RETURN> or 'O' key or click on the Okay button.
Choose Buffer Size again. At this point, the top line
WILL indicate the maximum free memory available for the
transfer buffer. Enter the desired buffer size in Kbytes.
If you are in the process of a transfer or have a file(s)
waiting to be received/sent you will not be able to
select this option. You CANNOT select this option if you
are in RESET-PROOF mode.
NOTE: If you execute the SHADOW accessory as a program, you
CANNOT allocate a transfer buffer from the program when the
SHADOW RAMdisk is installed.
Counter Location- click on this to set the on-screen counter location. When
you click on this button, a box will appear in the current
Can also be counter location with the text '9999/9/99' in it. Position
accessed by the mouse over the box, press the left mouse button and
pressing while keeping the left mouse button depressed, drag the
the 'C' key outline box (which appearred when you pressed the mouse
button) to the desired screen location. The new counter
location will appear in the place you just chose. You may
continue to do this until you get the counter positioned
where you like it. Press the RIGHT MOUSE button to exit
this mode and return to the Options menu.
Press the RIGHT MOUSE button or <UNDO> key to exit the Options menu.
SHADOW.INF
==========
SHADOW.INF save now deletes any existing SHADOW.INF file before trying to
create a new one. This is to work around an OS bug which sometimes caused
two SHADOW.INF files to be in the AUTO directory.
SHADOW.INF now contains an extra line which contains the location for the
on-screen counter location. The line looks like:
L071,024
where 071 is the x value in character coordinates and 024 is the y value.
This value will be read by the SHADOW accessory to set the location. The
default location is in the upper right hand corner.
NOTE:
RESAVE your SHADOW.INF file to include all current values.
Hangup String
=============
Pressing ALT-H in the terminal will now send out a hangup string. The
hangup string is configurable from the dialer menu. Here is how to configure
the hangup string.
For a HAYES compatible modem, a typical hangup string might look like this:
%(1)+++%(2)ATH|
This string will delay for 1 second, send out '+++' to the serial port,
delay for another 2 seconds, then send out 'ATH' followed by a carriage
return.
To delay for up to 32767 seconds, you MUST enter a string in the HANGUP
field with the syntax of:
%(seconds)
where seconds is a whole positive number of seconds to delay.
Any text after the above construction will be sent after the delay. To send
a '%' out, enter %% in the hangup field.
A vertical bar '|' will be substituted with a carriage return.
This hangup string will be saved in your .MDM file. You MUST resave your
directories to have this string load when you load a directory. Old SHADOW
directories are 100% compatible with this addition.
Terminal
========
If you are currently dialing, ALT-A from the terminal will abort the dialer.
Pressing F3 would sometimes act like it was not being pressed, resulting in
the need to press it until the abort message came up. This is fixed.
Answering 'N' to abort transfer before the transfer begins will now redraw
the status line.
When receiving Y-Modem Batch, the expected file size will also be displayed
in the status line, but only if the sender sends the file size in the
startup packet.
ALT-O brings up the Options menu (se