BarcodeScannerErrorOccurred

This event occurs when there is an error, such as a scanning error.

The data buffer for this event is as follows.

Syntax

// Error occurred data should fill the ReadFile buffer in this order:
//    PosBarcodeScannerErrorOccurredEventData structure (length = sizeof(PosBarcodeScannerErrorOccurredEventData))
//    Error Message (length = MessageLength)
//    Scan Data (length = ScanDataLength)
//    Scan Data Label (length = ScanDataLabelLength)

typedef struct _PosBarcodeScannerErrorOccurredEventData
{
    PosEventDataHeader Header;
    LONG IsRetriable;
    UnifiedPosErrorSeverity Severity;
    UINT32 VendorErrorCode;
    UnifiedPosErrorReason Reason;
    UINT32 ExtendedReason;
    UINT32 MessageLength;
    PosBarcodeScannerDataReceivedEventData PartialData;
} PosBarcodeScannerErrorOccurredEventData;

The following table shows the memory layout of the data buffer for this event.

Memory value Description

0x00000006

EventType = PosEventType:: BarcodeScannerTriggerPressed

UINT32

DataLength = sizeof(PosBarcodeScannerErrorOccurredData) + MessageLength + ScanDataLength + ScanDataLabelLength)

BOOL

IsRetriable

32-bit UnifiedPosErrorSeverity

Severity

UINT32

VendorErrorCode

32-bit UnifiedPosErrorReason

Reason

UINT32

ExtendedReason

UINT32

MessageLength

PosBarcodeScannerDataReceivedEventData

PartialData

UINT32

EventType not specified

UINT32

DataLength = sizeof(PosBarcodeScannerDataRecievedEventData) + MessageLength + ScanDataLength + ScanDataLabelLength)

UINT32

DataType not specified

UINT32

ScanDataLength

UINT32

ScanDataLabelLength

byte []

MessageLength bytes of message

byte []

ScanDataLength bytes of label data

byte []

ScanDataLabelLength bytes of scan data

 

Remarks

If a scanning error occurs, and some scan data was obtained, the event data contains the partial scan data.

Requirements

Header: pointofservicedriverinterface.h

 

 

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