LEADTOOLS Barcode (Leadtools.Barcode assembly)

QRBarcodeReadOptions Class

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Members 
Contains extra options to use when reading QR barcodes.
Object Model
Syntax
[TypeConverterAttribute()]
[SerializableAttribute()]
public class QRBarcodeReadOptions : BarcodeReadOptions, System.ICloneable  
'Declaration
 
<TypeConverterAttribute()>
<SerializableAttribute()>
Public Class QRBarcodeReadOptions 
   Inherits BarcodeReadOptions
   Implements System.ICloneable 
'Usage
 
Dim instance As QRBarcodeReadOptions
public sealed class QRBarcodeReadOptions : System.ICloneable  
@interface LTQRBarcodeReadOptions : LTBarcodeReadOptions
public class QRBarcodeReadOptions extends BarcodeReadOptions
function Leadtools.Barcode.QRBarcodeReadOptions()
[TypeConverterAttribute()]
[SerializableAttribute()]
public ref class QRBarcodeReadOptions : public BarcodeReadOptions, System.ICloneable  
Remarks

The QRBarcodeReadOptions class is used to control the options when reading QR barcodes using LEADTOOLS. Set the options in two ways:

The BarcodeReader class contains default options for each barcode symbology (or group of common symbologies). These options can be retrieved using the BarcodeReader.GetDefaultOptions method, passing BarcodeSymbology.QR. Change the members of the returned QRBarcodeReadOptions by casting it from BarcodeReadOptions to QRBarcodeReadOptions.

You can also create an instance of the QRBarcodeReadOptions class and use it directly in the BarcodeReader.ReadBarcode and BarcodeReader.ReadBarcodes methods that accept a single or array of options as an input parameter.

The base BarcodeReadOptions contains the following members and features:

Member Description
BarcodeReadOptions.ForeColor

Controls the barcode foreground color (color of the bars or symbols) to use when reading a barcode from a colored image.

BarcodeReadOptions.BackColor

Controls the barcode background color (color of the spaces) to use when reading a barcode from a colored image.

BarcodeReadOptions.Load and BarcodeReadOptions.Save

Can be used to save or load the options to/from an XML file or stream.

BarcodeReadOptions.GetSupportedSymbologies

This class overrides the base class method to return an array containing the following symbologies: BarcodeSymbology.QR

In addition to the features features and members, the QRBarcodeReadOptions contains these QR barcodes specific features:

Member Description
EnableDoublePass

Enable internal auto pre-processing of the image data if no QR barcode was found

Example

For an example, refer to QRBarcodeData.

Requirements

Target Platforms

See Also

Reference

QRBarcodeReadOptions Members
Leadtools.Barcode Namespace
QRBarcodeData Class
BarcodeReader Class
BarcodeSymbology Enumeration
BarcodeEngine Class
BarcodeReader.ReadBarcode
BarcodeReader.ReadBarcodes
Programming with LEADTOOLS Barcode
Supported Barcode Symbologies
Unlocking Barcode Support
Reading Barcodes Tutorial
QR Barcodes in LEADTOOLS

 

 


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Leadtools.Barcode requires a Barcode Module license and unlock key. For more information, refer to: LEADTOOLS Toolkit Features