ReadBarcode

Detect and interpret a 1d barcode within the provided image. Can be canceled by Watchdog.

Syntax

Definition:

HRESULT ReadBarcode(
    HRESULT          hrPrev,
    ITcVnImage*      ipSrcImage,
    ITcVnContainer*& ipDecodedData,
    ULONG            eBarcodeType
)

Parameters

Name

Type

Description

hrPrev

HRESULT

HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.)

ipSrcImage

ITcVnImage*

Source image (USINT elements, 1 channel or 3 channel (3 channel input is expected to be RGB and internally converted to Gray))

ipDecodedData

ITcVnContainer*&

Returns the decoded code (ContainerType_Vector_String_SINT)

eBarcodeType

ULONG

Types of barcode to search for (ETcVnBarcodeType)

ReadBarcode 1: Return value

HRESULT

Required License

TC3 Vision Code Reading

System Requirements

Development environment

Target platform

PLC libraries to include

TwinCAT V3.1.4024.54 or later

PC or CX (x64) with PL50, e.g. Intel 4-core Atom CPU

Tc3_Vision