ByteScout Barcode Reader SDK - VB.NET - Read Checkboxes From Image - ByteScout

ByteScout Barcode Reader SDK – VB.NET – Read Checkboxes From Image

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How to read checkboxes from image in VB.NET and ByteScout BarCode Reader SDK

The tutorial below will demonstrate how to read checkboxes from image in VB.NET

Every ByteScout tool contains example VB.NET source codes that you can find here or in the folder with installed ByteScout product. ByteScout BarCode Reader SDK is the barcode decoder with support for code 39, code 128, QR Code, Datamatrix, GS1, PDF417 and all other popular barcodes. Can read barcodes from images, pdf, tiff documents and live web camera. Supports noisy and damaged documents, can split and merge pdf and tiff documents based on barcodes. Can export barcode decoder results to XML, JSON, CSV and into custom data structures and you can use it to read checkboxes from image with VB.NET.

Fast application programming interfaces of ByteScout BarCode Reader SDK for VB.NET plus the instruction and the code below will help you quickly learn how to read checkboxes from image. In order to implement the functionality, you should copy and paste this code for VB.NET below into your code editor with your app, compile and run your application. Further enhancement of the code will make it more vigorous.

Our website provides trial version of ByteScout BarCode Reader SDK for free. It also includes documentation and source code samples.

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Module1.vb
      
Imports System.IO Imports Bytescout.BarCodeReader Module Module1 Sub Main() Dim ImageFile As String = "checkboxes-checked.png" Console.WriteLine("Reading checkboxes from image {0}", Path.GetFullPath(ImageFile)) Dim reader As New Reader() reader.RegistrationName = "demo" reader.RegistrationKey = "demo" ' Enable check boxes recognition reader.BarcodeTypesToFind.Checkbox = True ' ----------------------------------------------------------------------- ' NOTE: We can read barcodes from specific page to increase performance . ' For sample please refer to "Decoding barcodes from PDF by pages" program. ' ----------------------------------------------------------------------- ' Find check boxes Dim barcodes = reader.ReadFrom(ImageFile) For Each barcode As FoundBarcode In barcodes Console.WriteLine("Found checkbox with type '{0}' and value '{1}'", barcode.Type, barcode.Value) Next ' Cleanup reader.Dispose() Console.WriteLine("Press any key to exit..") Console.ReadKey() End Sub End Module

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Read Checkboxes.VS2005.vbproj
      
<?xml version="1.0" encoding="utf-8"?> <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> <PropertyGroup> <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration> <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform> <ProductVersion>8.0.50727</ProductVersion> <SchemaVersion>2.0</SchemaVersion> <ProjectGuid>{047D06CA-71F3-4BA9-B049-F9F05EE01B68}</ProjectGuid> <OutputType>Exe</OutputType> <StartupObject>Read_Checkboxes.Module1</StartupObject> <RootNamespace>Read_Checkboxes</RootNamespace> <AssemblyName>Read Checkboxes</AssemblyName> <MyType>Console</MyType> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "> <DebugSymbols>true</DebugSymbols> <DebugType>full</DebugType> <DefineDebug>true</DefineDebug> <DefineTrace>true</DefineTrace> <OutputPath>bin\Debug\</OutputPath> <DocumentationFile>Read Checkboxes.xml</DocumentationFile> <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "> <DebugType>pdbonly</DebugType> <DefineDebug>false</DefineDebug> <DefineTrace>true</DefineTrace> <Optimize>true</Optimize> <OutputPath>bin\Release\</OutputPath> <DocumentationFile>Read Checkboxes.xml</DocumentationFile> <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn> </PropertyGroup> <ItemGroup> <Reference Include="Bytescout.BarCodeReader"> <SpecificVersion>False</SpecificVersion> <HintPath>C:\Program Files\Bytescout BarCode Reader SDK\net4.00\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="Module1.vb" /> </ItemGroup> <ItemGroup> <Content Include="checkboxes-checked.PNG"> <CopyToOutputDirectory>Always</CopyToOutputDirectory> </Content> <Content Include="checkboxes-empty.PNG" /> </ItemGroup> <Import Project="$(MSBuildBinPath)\Microsoft.VisualBasic.targets" /> <!-- To modify your build process, add your task inside one of the targets below and uncomment it. Other similar extension points exist, see Microsoft.Common.targets. <Target Name="BeforeBuild"> </Target> <Target Name="AfterBuild"> </Target> --> </Project>

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Read Checkboxes.VS2008.vbproj
      
<?xml version="1.0" encoding="utf-8"?> <Project ToolsVersion="3.5" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> <PropertyGroup> <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration> <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform> <ProductVersion>9.0.30729</ProductVersion> <SchemaVersion>2.0</SchemaVersion> <ProjectGuid>{047D06CA-71F3-4BA9-B049-F9F05EE01B68}</ProjectGuid> <OutputType>Exe</OutputType> <StartupObject>Read_Checkboxes.Module1</StartupObject> <RootNamespace>Read_Checkboxes</RootNamespace> <AssemblyName>Read Checkboxes</AssemblyName> <MyType>Console</MyType> <TargetFrameworkVersion>v3.5</TargetFrameworkVersion> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "> <DebugSymbols>true</DebugSymbols> <DebugType>full</DebugType> <DefineDebug>true</DefineDebug> <DefineTrace>true</DefineTrace> <OutputPath>bin\Debug\</OutputPath> <DocumentationFile>Read Checkboxes.xml</DocumentationFile> <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "> <DebugType>pdbonly</DebugType> <DefineDebug>false</DefineDebug> <DefineTrace>true</DefineTrace> <Optimize>true</Optimize> <OutputPath>bin\Release\</OutputPath> <DocumentationFile>Read Checkboxes.xml</DocumentationFile> <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn> </PropertyGroup> <ItemGroup> <Reference Include="Bytescout.BarCodeReader"> <SpecificVersion>False</SpecificVersion> <HintPath>C:\Program Files\Bytescout BarCode Reader SDK\net4.00\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="Module1.vb" /> </ItemGroup> <ItemGroup> <Content Include="checkboxes-checked.PNG"> <CopyToOutputDirectory>Always</CopyToOutputDirectory> </Content> <Content Include="checkboxes-empty.PNG" /> </ItemGroup> <Import Project="$(MSBuildToolsPath)\Microsoft.VisualBasic.targets" /> <!-- To modify your build process, add your task inside one of the targets below and uncomment it. Other similar extension points exist, see Microsoft.Common.targets. <Target Name="BeforeBuild"> </Target> <Target Name="AfterBuild"> </Target> --> </Project>

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Read Checkboxes.VS2010.vbproj
      
<?xml version="1.0" encoding="utf-8"?> <Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> <PropertyGroup> <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration> <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform> <SchemaVersion>2.0</SchemaVersion> <ProjectGuid>{047D06CA-71F3-4BA9-B049-F9F05EE01B68}</ProjectGuid> <OutputType>Exe</OutputType> <StartupObject>Read_Checkboxes.Module1</StartupObject> <RootNamespace>Read_Checkboxes</RootNamespace> <AssemblyName>Read Checkboxes</AssemblyName> <MyType>Console</MyType> <TargetFrameworkVersion>v4.0</TargetFrameworkVersion> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "> <DebugSymbols>true</DebugSymbols> <DebugType>full</DebugType> <DefineDebug>true</DefineDebug> <DefineTrace>true</DefineTrace> <OutputPath>bin\Debug\</OutputPath> <DocumentationFile>Read Checkboxes.xml</DocumentationFile> <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "> <DebugType>pdbonly</DebugType> <DefineDebug>false</DefineDebug> <DefineTrace>true</DefineTrace> <Optimize>true</Optimize> <OutputPath>bin\Release\</OutputPath> <DocumentationFile>Read Checkboxes.xml</DocumentationFile> <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn> </PropertyGroup> <ItemGroup> <Reference Include="Bytescout.BarCodeReader"> <SpecificVersion>False</SpecificVersion> <HintPath>C:\Program Files\Bytescout BarCode Reader SDK\net4.00\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="Module1.vb" /> </ItemGroup> <ItemGroup> <Content Include="checkboxes-checked.PNG"> <CopyToOutputDirectory>Always</CopyToOutputDirectory> </Content> <Content Include="checkboxes-empty.PNG" /> </ItemGroup> <Import Project="$(MSBuildToolsPath)\Microsoft.VisualBasic.targets" /> <!-- To modify your build process, add your task inside one of the targets below and uncomment it. Other similar extension points exist, see Microsoft.Common.targets. <Target Name="BeforeBuild"> </Target> <Target Name="AfterBuild"> </Target> --> </Project>

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Read Checkboxes.VS2012.vbproj
      
<?xml version="1.0" encoding="utf-8"?> <Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> <PropertyGroup> <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration> <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform> <SchemaVersion>2.0</SchemaVersion> <ProjectGuid>{047D06CA-71F3-4BA9-B049-F9F05EE01B68}</ProjectGuid> <OutputType>Exe</OutputType> <StartupObject>Read_Checkboxes.Module1</StartupObject> <RootNamespace>Read_Checkboxes</RootNamespace> <AssemblyName>Read Checkboxes</AssemblyName> <MyType>Console</MyType> <TargetFrameworkVersion>v4.0</TargetFrameworkVersion> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "> <DebugSymbols>true</DebugSymbols> <DebugType>full</DebugType> <DefineDebug>true</DefineDebug> <DefineTrace>true</DefineTrace> <OutputPath>bin\Debug\</OutputPath> <DocumentationFile>Read Checkboxes.xml</DocumentationFile> <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "> <DebugType>pdbonly</DebugType> <DefineDebug>false</DefineDebug> <DefineTrace>true</DefineTrace> <Optimize>true</Optimize> <OutputPath>bin\Release\</OutputPath> <DocumentationFile>Read Checkboxes.xml</DocumentationFile> <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn> </PropertyGroup> <ItemGroup> <Reference Include="Bytescout.BarCodeReader"> <SpecificVersion>False</SpecificVersion> <HintPath>C:\Program Files\Bytescout BarCode Reader SDK\net4.00\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="Module1.vb" /> </ItemGroup> <ItemGroup> <Content Include="checkboxes-checked.PNG"> <CopyToOutputDirectory>Always</CopyToOutputDirectory> </Content> <Content Include="checkboxes-empty.PNG" /> </ItemGroup> <Import Project="$(MSBuildToolsPath)\Microsoft.VisualBasic.targets" /> <!-- To modify your build process, add your task inside one of the targets below and uncomment it. Other similar extension points exist, see Microsoft.Common.targets. <Target Name="BeforeBuild"> </Target> <Target Name="AfterBuild"> </Target> --> </Project>

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Read Checkboxes.VS2013.vbproj
      
<?xml version="1.0" encoding="utf-8"?> <Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> <PropertyGroup> <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration> <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform> <SchemaVersion>2.0</SchemaVersion> <ProjectGuid>{047D06CA-71F3-4BA9-B049-F9F05EE01B68}</ProjectGuid> <OutputType>Exe</OutputType> <StartupObject>Read_Checkboxes.Module1</StartupObject> <RootNamespace>Read_Checkboxes</RootNamespace> <AssemblyName>Read Checkboxes</AssemblyName> <MyType>Console</MyType> <TargetFrameworkVersion>v4.5</TargetFrameworkVersion> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "> <DebugSymbols>true</DebugSymbols> <DebugType>full</DebugType> <DefineDebug>true</DefineDebug> <DefineTrace>true</DefineTrace> <OutputPath>bin\Debug\</OutputPath> <DocumentationFile>Read Checkboxes.xml</DocumentationFile> <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "> <DebugType>pdbonly</DebugType> <DefineDebug>false</DefineDebug> <DefineTrace>true</DefineTrace> <Optimize>true</Optimize> <OutputPath>bin\Release\</OutputPath> <DocumentationFile>Read Checkboxes.xml</DocumentationFile> <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn> </PropertyGroup> <ItemGroup> <Reference Include="Bytescout.BarCodeReader"> <SpecificVersion>False</SpecificVersion> <HintPath>C:\Program Files\Bytescout BarCode Reader SDK\net4.00\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="Module1.vb" /> </ItemGroup> <ItemGroup> <Content Include="checkboxes-checked.PNG"> <CopyToOutputDirectory>Always</CopyToOutputDirectory> </Content> <Content Include="checkboxes-empty.PNG" /> </ItemGroup> <Import Project="$(MSBuildToolsPath)\Microsoft.VisualBasic.targets" /> <!-- To modify your build process, add your task inside one of the targets below and uncomment it. Other similar extension points exist, see Microsoft.Common.targets. <Target Name="BeforeBuild"> </Target> <Target Name="AfterBuild"> </Target> --> </Project>

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Read Checkboxes.VS2015.vbproj
      
<?xml version="1.0" encoding="utf-8"?> <Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> <PropertyGroup> <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration> <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform> <SchemaVersion>2.0</SchemaVersion> <ProjectGuid>{047D06CA-71F3-4BA9-B049-F9F05EE01B68}</ProjectGuid> <OutputType>Exe</OutputType> <StartupObject>Read_Checkboxes.Module1</StartupObject> <RootNamespace>Read_Checkboxes</RootNamespace> <AssemblyName>Read Checkboxes</AssemblyName> <MyType>Console</MyType> <TargetFrameworkVersion>v4.5</TargetFrameworkVersion> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "> <DebugSymbols>true</DebugSymbols> <DebugType>full</DebugType> <DefineDebug>true</DefineDebug> <DefineTrace>true</DefineTrace> <OutputPath>bin\Debug\</OutputPath> <DocumentationFile>Read Checkboxes.xml</DocumentationFile> <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "> <DebugType>pdbonly</DebugType> <DefineDebug>false</DefineDebug> <DefineTrace>true</DefineTrace> <Optimize>true</Optimize> <OutputPath>bin\Release\</OutputPath> <DocumentationFile>Read Checkboxes.xml</DocumentationFile> <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn> </PropertyGroup> <ItemGroup> <Reference Include="Bytescout.BarCodeReader"> <SpecificVersion>False</SpecificVersion> <HintPath>C:\Program Files\Bytescout BarCode Reader SDK\net4.00\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="Module1.vb" /> </ItemGroup> <ItemGroup> <Content Include="checkboxes-checked.PNG"> <CopyToOutputDirectory>Always</CopyToOutputDirectory> </Content> <Content Include="checkboxes-empty.PNG" /> </ItemGroup> <Import Project="$(MSBuildToolsPath)\Microsoft.VisualBasic.targets" /> <!-- To modify your build process, add your task inside one of the targets below and uncomment it. Other similar extension points exist, see Microsoft.Common.targets. <Target Name="BeforeBuild"> </Target> <Target Name="AfterBuild"> </Target> --> </Project>

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