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User Defined file format
In the File Handling dialog box the data type is always a compressed data type
of CCITT group 3/4. You can select one option. You can also select a File
Format. One of the file format options is the User option. This option selects
the user defined header type to be placed at the beginning of the file. User
defined headers give you a very powerful tool for constructing almost any file
header format.
Because of the flexibility of setting up the User option, this needs to be
Note:
carried out by a qualified person. This person must be able to work with a file
editor. This file editor must be suitable for displaying and editing printable and
non printable characters and measuring byte offsets to the records being
edited.
The actual image file header created by the User Defined option is defined by
two files.
a Header Definition file which defines the image dependent data records tobe
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written into each image file header. The Header Defenition file will always be
called USER.DEF. It will always be found in the directory where you can find
the OCE.EXE to start the 3000 software with (c:\ocei40a).
a Header Template file containing a template for the image file header which
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provides the constant data or text to be used in every image header. The name
and path of the Header Template file can be anything and is one of the
parameters defined in the Header Definition file.
Header Definition file
The Header Definition file is an ASCII text file which is always named
USER.DEF. Such file has the following format:
[File]
Default Header=<file name and path of the Header Template file>
Header Length=<total number of bytes in the image file header>
Extension=<extension to use for the image file>
Number of records=<total of records to be inserted in the image file header>
The Header length is the length of the Header Template file. The
Note:
extension can be any. As default .USR is used.
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Océ 3000 User Manual
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