ByteScout Barcode Reader SDK - VB.NET - Decode QR Code With JSON - ByteScout

ByteScout Barcode Reader SDK – VB.NET – Decode QR Code With JSON

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How to decode QR code with JSON in VB.NET and ByteScout BarCode Reader SDK

Tutorial on how to decode QR code with JSON in VB.NET

The code below will help you to implement an VB.NET app to decode QR code with JSON. ByteScout BarCode Reader SDK is the SDK for barcode decoding. Can read all popular types from Code 128, GS1, UPC and Code 39 to QR Code, Datamatrix, PDF417. Images, pdf, TIF images and live web camera are supported as input. Designed to handle documents with noise and defects. Includes optional splitter and merger for pdf and tiff based on barcodes. Batch mode is optimized for high performance with multiple threads. Decoded values can be exported to XML, JSON, CSV or into custom data format and you can use it to decode QR code with JSON with VB.NET.

You will save a lot of time on writing and testing code as you may just take the VB.NET code from ByteScout BarCode Reader SDK for decode QR code with JSON below and use it in your application. This VB.NET sample code is all you need for your app. Just copy and paste the code, add references (if needs to) and you are all set! This basic programming language sample code for VB.NET will do the whole work for you to decode QR code with JSON.

Free trial version of ByteScout BarCode Reader SDK is available for download from our website. Get it to try other source code samples for VB.NET.

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DecodeQRCodeWithJSON.sln
      
Microsoft Visual Studio Solution File, Format Version 12.00 # Visual Studio 15 VisualStudioVersion = 15.0.27703.2026 MinimumVisualStudioVersion = 10.0.40219.1 Project("{F184B08F-C81C-45F6-A57F-5ABD9991F28F}") = "DecodeQRCodeWithJSON", "DecodeQRCodeWithJSON.vbproj", "{72A88E4C-71F1-4C8C-A8ED-C6FB8343A0EB}" EndProject Global GlobalSection(SolutionConfigurationPlatforms) = preSolution Debug|Any CPU = Debug|Any CPU Release|Any CPU = Release|Any CPU EndGlobalSection GlobalSection(ProjectConfigurationPlatforms) = postSolution {72A88E4C-71F1-4C8C-A8ED-C6FB8343A0EB}.Debug|Any CPU.ActiveCfg = Debug|Any CPU {72A88E4C-71F1-4C8C-A8ED-C6FB8343A0EB}.Debug|Any CPU.Build.0 = Debug|Any CPU {72A88E4C-71F1-4C8C-A8ED-C6FB8343A0EB}.Release|Any CPU.ActiveCfg = Release|Any CPU {72A88E4C-71F1-4C8C-A8ED-C6FB8343A0EB}.Release|Any CPU.Build.0 = Release|Any CPU EndGlobalSection GlobalSection(SolutionProperties) = preSolution HideSolutionNode = FALSE EndGlobalSection GlobalSection(ExtensibilityGlobals) = postSolution SolutionGuid = {5D28CBD5-3606-404F-B89D-07F4EAE5F64C} EndGlobalSection EndGlobal

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DecodeQRCodeWithJSON.vbproj
      
<?xml version="1.0" encoding="utf-8"?> <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" /> <PropertyGroup> <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration> <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform> <ProjectGuid>{72A88E4C-71F1-4C8C-A8ED-C6FB8343A0EB}</ProjectGuid> <OutputType>Exe</OutputType> <StartupObject>DecodeQRCodeWithJSON.Program</StartupObject> <RootNamespace>DecodeQRCodeWithJSON</RootNamespace> <AssemblyName>DecodeQRCodeWithJSON</AssemblyName> <FileAlignment>512</FileAlignment> <MyType>Console</MyType> <TargetFrameworkVersion>v2.0</TargetFrameworkVersion> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "> <PlatformTarget>AnyCPU</PlatformTarget> <DebugSymbols>true</DebugSymbols> <DebugType>full</DebugType> <DefineDebug>true</DefineDebug> <DefineTrace>true</DefineTrace> <OutputPath>bin\Debug\</OutputPath> <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "> <PlatformTarget>AnyCPU</PlatformTarget> <DebugType>pdbonly</DebugType> <DefineDebug>false</DefineDebug> <DefineTrace>true</DefineTrace> <Optimize>true</Optimize> <OutputPath>bin\Release\</OutputPath> <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn> </PropertyGroup> <PropertyGroup> <OptionExplicit>On</OptionExplicit> </PropertyGroup> <PropertyGroup> <OptionCompare>Binary</OptionCompare> </PropertyGroup> <PropertyGroup> <OptionStrict>Off</OptionStrict> </PropertyGroup> <PropertyGroup> <OptionInfer>On</OptionInfer> </PropertyGroup> <ItemGroup> <Reference Include="Bytescout.BarCodeReader, Version=10.2.0.1799, Culture=neutral, PublicKeyToken=f7dd1bd9d40a50eb, processorArchitecture=MSIL"> <SpecificVersion>False</SpecificVersion> <HintPath>c:\Program Files\Bytescout BarCode Reader SDK\net2.00\Bytescout.BarCodeReader.dll</HintPath> </Reference> <Reference Include="System" /> <Reference Include="System.Data" /> <Reference Include="System.Deployment" /> <Reference Include="System.Drawing" /> <Reference Include="System.Xml" /> </ItemGroup> <ItemGroup> <Import Include="Microsoft.VisualBasic" /> <Import Include="System" /> <Import Include="System.Collections" /> <Import Include="System.Collections.Generic" /> <Import Include="System.Data" /> <Import Include="System.Diagnostics" /> </ItemGroup> <ItemGroup> <Compile Include="Program.vb" /> </ItemGroup> <ItemGroup> <Content Include="qr_code_with_json.png"> <CopyToOutputDirectory>Always</CopyToOutputDirectory> </Content> </ItemGroup> <Import Project="$(MSBuildToolsPath)\Microsoft.VisualBasic.targets" /> </Project>

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Program.vb
      
Imports Bytescout.BarCodeReader Module Program Sub Main() Try ' Create and activate Bytescout.BarCodeReader.Reader instance Using reader As Reader = New Reader("demo", "demo") ' Set barcode type to find reader.BarcodeTypesToFind.QRCode = True ' ----------------------------------------------------------------------- ' NOTE: We can read barcodes from specific page to increase performance . ' For sample please refer to "Decoding barcodes from PDF by pages" program. ' ----------------------------------------------------------------------- ' Read barcodes Dim barcodes() As FoundBarcode = reader.ReadFrom("qr_code_with_json.png") For Each code As FoundBarcode In barcodes Console.WriteLine("Found barcode with type '{0}' and value '{1}'", code.Type, code.Value) Next End Using Catch ex As Exception Console.WriteLine(ex.Message) End Try Console.WriteLine() Console.WriteLine("Press any key to exit...") Console.ReadLine() End Sub End Module

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