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Copyright © 2007 • MCL Technologies • All Rights Reserved
www.mcl-collection.com
Chapter 3 : Creating a Project
3.3.2.3. External Barcode Reader
General introduction
As discussed in Section
3.3.2 – Variables, Input Methods, several input
methods are available for your screen prompts.
This section discusses the External Barcode Reader input method and
the properties you need to set up when you select this input type.
External Barcode allows the User to use an external barcode scanner
for inputs to the label program.
For External Barcode reader the property settings are as follows:
Symbologies
Min. Length
Max. Length
Pattern
Extract From
Extract To
Set which types of Barcode Symbologies may be
read
Set the minimum number of characters needed
for the input to be accepted
Set the maximum number of characters needed
for the input to be accepted
Set a required pattern for the input. Possible
pattern masks include the letters A-Z, the
numbers 0-9 and the special characters
$“_ *. These pattern masks and their use are
described in Chapter 5 – Using Processes. See
Section
5.2.2 Control and Branch for a detailed
description about the use of patterns.
The user will not be able to input a value that
does not match the pattern.
Set the starting position if extracting only
certain characters from the input
Set the ending position if extracting only certain
characters from the input
For example, if you set Extract From 4 and
Extract To 6, you will extract “555” out of
0005550
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