Web Demos

BARCODE READER SDK DEMO

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

WEB TWAIN SDK DEMO

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.

APP STORE DEMOS

BARCODE READER SDK FOR IOS

BARCODE READER SDK FOR ANDROID

VIEW MORE DEMOS >
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Table of contents

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Dynamsoft Barcode Reader SDK - Javascript BarcodeReader Class

The BarcodeReader class is used for image decoding.

BarcodeReader Methods

Initialize and Destroy

The following methods are related to initializing and destroying the BarcodeReader object.

Method Description
createInstance() Create a BarcodeReader object.
destroy() Destroy the BarcodeReader object.
detectEnvironment() Detect the current environment.
isLoaded() Check if the decoding module is loaded.
loadWasm() Manually load and compile the decoding WASM module.

Decode

The following methods are related to decoding barcodes.

Method Description
decode() Decode barcodes from images, binary data, URLs, and more.
decodeBase64String() Decode barcodes from a base64 encoded string.
decodeBuffer() Decode barcodes from raw buffer.
decodeUrl() Decode barcodes from a URL.

Parameter and Runtime Settings

The following methods are related to customizing mode and runtime settings.

Method Description
getModeArgument() Get argument value for the specified mode parameter.
setModeArgument() Set argument value for the specified mode parameter.
getRuntimeSettings() Get current runtime settings.
resetRuntimeSettings() Reset runtime settings to default.
updateRuntimeSettings() Modify and update the current runtime settings.

BarcodeReader Properties

Property Description
_bUseFullFeature If set to false, use the compact-featured WASM module.
bDestroyed Indicates whether a BarcodeScanner object has been destroyed.
bSaveOriCanvas If set to true, save the original image to canvas.
oriCanvas The original canvas element.

BarcodeReader Accessors

Accessors Description
engineResourcePath Get or set the engine (WASM) location.
productKeys Get or set the Dynamsoft Barcode Reader SDK product keys.
version Get current version.

This page is compatible for:

Version 7.5.0

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