Code 39 (USD-3)
Code 39, the first alpha-numeric symbology to be developed, is still widely used, particularly in non-retail environments. 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). Code 39 is also known as "3 of 9 Code" and "USD-3".
The following properties are specific to the Code 39 type and listed in the Property Grid under the Symbology property:
- Calculate a Checksum
- Specifies whether to calculate a checksum for the barcode.
- Wide Narrow Ratio
- Specifies the density of a bar code's bars.