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Explore the flexibe barcode reading settings to optimize for your specific usage scenario.

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Try the most popular web scanner features: scan images, import local images and PDF files, edit, save to local, upload to database, and etc.

BARCODE READER JAVASCRIPT DEMO

Transform any camera-equipped devices into real-time, browser-based barcode and QR code scanners.

MRZ SCANNER WEB DEMO

Detects the machine-readable zone of a passport, scans the text, and parses into human-readable data.

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Table of contents

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ExpectedBarcodesCount

ExpectedBarcodesCount determines the number of barcodes expected to be detected. It is defined as below:

Value Type Value Range Default Value Template Structure Type
int [0, 0x7fffffff] 0 ImageParameter/RegionDefinition

Remarks

  • 0: detects at least one barcode.
  • N ( N > 0 ): detects N barcodes.
  • Dynamsoft Barcode Reader works as a loop trying different parameters to detect barcodes as many as possible. If ExpectedBarcodesCount is 0, the loop stops after a loop round finishes and detects at least one barcode. If ExpectedBarcodesCount is N, the loop stops once N barcodes are detected.
  • ExpectedBarcodesCount applies to each page when decoding a multi-page file.

Setting Methods

ExpectedBarcodesCount is supported to be set through RuntimeSetting or JSON template.

As PublicRuntimeSettings Member

ExpectedBarcodesCount can be set dynamically during runtime as a member of PublicRuntimeSettings struct.

Code Snippet in C++

//...other codes
PublicRuntimeSettings* pSettings = new PublicRuntimeSettings;
int errorCode = reader->GetRuntimeSettings(pSettings);
pSettings->expectedBarcodesCount = 1;
reader->UpdateRuntimeSettings(pSettings);
delete pSettings;
//...other codes

See Also

As JSON Parameter

ExpectedBarcodesCount as a JSON parameter is a number value defined as below.

Key Name Key Value
ExpectedBarcodesCount A number from [0, 0x7fffffff]

JSON Example

{
    "ExpectedBarcodesCount": 0
}

This page is compatible for:

Version 7.5.0

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