Code 39, the first alpha-numeric
symbology to be developed, is still widely used-especially in non-retail
environments. It is suitable for encoding general purpose alphanumeric data.
Code 39 is a discrete, variable-length symbology. It is self-checking in that a
single print defect cannot transpose one character into another valid
character. It is the standard barcode used by the United States Department of
Defense, and is also used by the Health Industry Bar Code Council (HIBCC).
The * (asterisk) is not a true encodable character, but is the
start and stop 'symbol' for Code 39.
Sample of a Code 39 Barcode
In order to get a Code 39 barcode image, please follow these
steps:
-
Set the Symbology property to Code39
-
Set the AddChecksum property to False
-
By default, Code 39 can only encode uppercase letters (A through Z), digits (0
through 9) and a handful of special characters like the *, -, $, %, (Space), .,
/, and +. If you need to encode all 128 ASCII characters, please set the Extended
property to True
-
Setting up dimensions and quiet zones:
-
Set the BarWidth and BarHeight properties (Values are expressed
in Inches)
-
Set the QuietZoneWidth property (Value is expressed in Inches)
-
Set the TopMargin and BottomMargin properties (Values are
expressed in Inches)
-
Set the Code property with the value to encode.
-
Code 39 utilizes asterisk characters as Start & Stop symbols and they
are shown in the human readable text of a barcode image. You can rid of those
characters from the human readable text by setting up the DisplayStartStopChar
property to False
