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hyenvoy1
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1991-06-09
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INSERT BINARY
Envoy 100 supports the transfer of binary (8 bit) files using the XMODEM
file transfer protocol. Both CRC and CHKSUM versions of XMODEM are
supported.
If INSERT BINARY is entered while editing a workspace the user will be
prompted for:
File Name: (up to 20 characters) and
File Format: (up to 20 characters).
These fields are labels which can be used to identify the binary attachment
that follows. They can be left blank by entering [cr].
After entering the 'File Format:' they will be prompted to 'Initiate
Transfer' (send BREAK to cancel). At this point the user must invoke the
XMODEM file transfer from their computer to send a binary file to Envoy
100. The exact manner in which Xmodem is invoked depends on the
communication software being used and the documentation for that package
should be consulted for this information.
After the file is transferred the user will receive a summary status line
from Envoy and then be prompted with Command? or Action? and can then send,
edit or save the message in the same manner as they are currently allowed.
The restrictions on editing of binary attachments are:
1) A binary file is stored as a single line in the workspace.
2) The binary file itself cannot be modified.
3) The file Name: and File Format: text can be edited like any other text.
However any attempts to edit the labels themselves will result in the
editing command being cancelled.
4) The line(s) containing the binary attachment(s) can be copied, deleted and
moved in the same manner as a text line(s).
A message can contain as many binary attachments as desired. Each binary
message will have a File Name: and File Format: label associated with it.
If no line number is specified the binary attachment will be added to the
first available line in the open workspace.
If the XMODEM transfer fails or is cancelled for any reason, the user will
be informed with a system message and be returned to the Command? prompt.
The message with the (incomplete) binary attachment will not be posted.
The XMODEM transfer can be cancelled by issuing a BREAK from the
communication software. Please consult the documentation for your package
for the details on cancelling an XMODEM file transfer.