ImageGear .NET v25.2 - Updated
Developer Guide / How to Work with... / Barcodes / Supported Barcode Types / Patch Code
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    Patch Code
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    The barcode engine supports the following patch codes:

    Patch Code Type

    Barcode Value

    Patch 1

    1100

    Patch 2

    1001

    Patch 3

    1010

    Patch 4 / Toggle Patch

    0110

    Patch 6

    0011

    Patch T / Transfer Patch

    0101

    To write a Patch Code, set the writer BarcodeType property to PatchCode, then set the writer BarcodeValue property to a value of 1 through 6.

    Patch Codes require a quiet zone, which should be at least the width of 10 narrow bars. This means that if you set the MinimumBarWidth property to 5 pixels (narrow bar size), you should set the HorizontalWhiteSpace property to 50 pixels. There is no checksum for Patch Code.

    The minimum bar width for Patch Codes is 5.

    An example: