Confidence Property

In This Topic

Description

Confidence of the barcode that was recognized.

Property type

Read-write property

Syntax

Visual Basic
Public Property Confidence As Long

Return Type

A long value which represents the confidence of the barcode.

Remarks

All barcode confidence values begin at 100.

1D barcodes - Confidence values are decreased as the widths of the bars vary over the barcode.
2D barcodes - Confidence values decrease based on the amount of error correction used in decoding the barcode.
Barcodes which use checksums - If a checksum error is detected, the confidence is set to 50.

Confidence values less than 30 are considered unreadable and any data returned is not considered reliable.