PRESCRIBE Commands
391
XBUF — define a BUFfer name
Format
XBUF buffer-name[,[data-length]]; data-string;ENDB;
Parameters
buffer-name:
name of the buffer that contains XBAR data
data-length:
length of data in bytes, terminated with a semicolon
data-string:
data to be encoded, terminated with a semicolon immediately followed by an ENDB
command (256 international characters or binary data)
Function
The XBUF command defines/undefines a buffer that contains actual data for the two
dimensional barcodes.
The buffer name can be any length but only the first four characters count. The rest will
be ignored. The distinction between upper and lowercase letters is also ignored. For
example, the following names are all the same.
• ABCD
• abcd
• ABCDE
• Abcdxyz
The name must start with a letter, but the other characters can include digits and special
symbols such as hyphens. For example, F-1 and GRY-2 are valid buffer names.
As the above Format instruction implies, the XBUF command sequence can have two
other formats implementing the different functions as follows:
XBUF buffer-name,; data-string;ENDB;
Note the comma ( , ) placed between the buffer-name and “;”. As is the case of XBAR,
this format allows that data-length can be omitted, 0, negative value, or non integer, the
comma after buffer-name must be left in place, however. Then data-string is counted all
characters until the program encounters “;ENDB;”. It is necessary to have no space or
linebreak between “;” and “ENDB;”.
The XBUF command sequence with no comma and data-length specified
XBUF buffer-name;
is used to delete the buffer name from the printing system memory.
The XBUF command sequence with no comma, buffer-name and data-length specified
XBUF;
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