Read Barcodes in C#

using IronBarCode;
using System;

// Attempt to read one or more barcodes from the specified image file.
BarcodeResults results = BarcodeReader.Read("GetStarted.png");

// Check if the results are not null and at least one barcode was found.
if (results != null && results.Count > 0)
{
    // Iterate over each barcode result within the results.
    foreach (BarcodeResult result in results)
    {
        // Output the text value of the barcode result to the console.
        // This indicates that reading the barcode was successful.
        Console.WriteLine("GetStarted was a success. Read Value: " + result.Text);
    }
}
else
{
    // If no barcodes were detected, output a message to the console.
    Console.WriteLine("No barcodes found in the image.");
}

Imports IronBarCode

Imports System



' Attempt to read one or more barcodes from the specified image file.

Private results As BarcodeResults = BarcodeReader.Read("GetStarted.png")



' Check if the results are not null and at least one barcode was found.

If results IsNot Nothing AndAlso results.Count > 0 Then

	' Iterate over each barcode result within the results.

	For Each result As BarcodeResult In results

		' Output the text value of the barcode result to the console.

		' This indicates that reading the barcode was successful.

		Console.WriteLine("GetStarted was a success. Read Value: " & result.Text)

	Next result

Else

	' If no barcodes were detected, output a message to the console.

	Console.WriteLine("No barcodes found in the image.")

End If

// Import the IronBarCode library to work with barcode operations
using IronBarCode;

// Configure barcode reader options
// This includes setting the reading speed and specifying expected barcode formats
BarcodeReaderOptions options = new BarcodeReaderOptions
{
    // Choose a reading speed for barcode analysis
    // Possible values: Faster, Balanced, Detailed, ExtremeDetail
    // Note: More detail typically results in slower performance but better accuracy
    Speed = ReadingSpeed.ExtremeDetail,

    // Specify which types of barcodes to expect for improved performance
    // If left unspecified, all types will be scanned by default, which may reduce performance
    ExpectBarcodeTypes = BarcodeEncoding.QRCode 
 BarcodeEncoding.Code128
};

// Read the barcode from the specified image file
// It returns the results containing information about recognized barcodes
BarcodeResults results = BarcodeReader.Read("TryHarderQR.png", options);

// Check if any barcodes were found and output their information
if (results != null && results.Barcodes.Count > 0)
{
    foreach (var barcode in results.Barcodes)
    {
        // Output each detected barcode's type and text value
        Console.WriteLine($"Barcode Type: {barcode.BarcodeType}, Value: {barcode.Text}");
    }
}
else
{
    // Inform the user that no barcodes were detected in the image
    Console.WriteLine("No barcodes found in the image.");
}

' Import the IronBarCode library to work with barcode operations

Imports IronBarCode



' Configure barcode reader options

' This includes setting the reading speed and specifying expected barcode formats

Private options As New BarcodeReaderOptions With {

	.Speed = ReadingSpeed.ExtremeDetail,

	.ExpectBarcodeTypes = BarcodeEncoding.QRCode Or BarcodeEncoding.Code128

}



' Read the barcode from the specified image file

' It returns the results containing information about recognized barcodes

Private results As BarcodeResults = BarcodeReader.Read("TryHarderQR.png", options)



' Check if any barcodes were found and output their information

If results IsNot Nothing AndAlso results.Barcodes.Count > 0 Then

	For Each barcode In results.Barcodes

		' Output each detected barcode's type and text value

		Console.WriteLine($"Barcode Type: {barcode.BarcodeType}, Value: {barcode.Text}")

	Next barcode

Else

	' Inform the user that no barcodes were detected in the image

	Console.WriteLine("No barcodes found in the image.")

End If

using IronBarCode;

// Create an instance of BarcodeReaderOptions to configure barcode reading
BarcodeReaderOptions options = new BarcodeReaderOptions
{
    // Choose which filters are to be applied (in order)
    ImageFilters = new ImageFilterCollection
    {
        new AdaptiveThresholdFilter() // Applies an adaptive thresholding filter
    },

    // Uses machine learning to automatically rotate the barcode if needed
    AutoRotate = true
};

// Read barcode from the specified image file using the configured options
BarcodeResults results = BarcodeReader.Read("TryHarderQR.png", options);

// Process the results
foreach (var result in results)
{
    // Display the barcode type and text
    Console.WriteLine($"Type: {result.BarcodeType}, Value: {result.Text}");
}

Imports IronBarCode



' Create an instance of BarcodeReaderOptions to configure barcode reading

Private options As New BarcodeReaderOptions With {

	.ImageFilters = New ImageFilterCollection From {New AdaptiveThresholdFilter()},

	.AutoRotate = True

}



' Read barcode from the specified image file using the configured options

Private results As BarcodeResults = BarcodeReader.Read("TryHarderQR.png", options)



' Process the results

For Each result In results

	' Display the barcode type and text

	Console.WriteLine($"Type: {result.BarcodeType}, Value: {result.Text}")

Next result

using System;
using IronBarCode;

// This code is designed to read and process multiple barcodes from a PDF document named "MultipleBarcodes.pdf".
try
{
    // Read barcodes from the specified PDF document.
    // The BarcodeReader.ReadPdf method returns a collection of BarcodeResult objects.
    BarcodeResults results = BarcodeReader.ReadPdf("MultipleBarcodes.pdf");

    // Check if any barcodes were found and process the results.
    if (results != null && results.Count > 0)
    {
        // Each BarcodeResult represents one barcode found on a specific page of the PDF.
        foreach (var pageResult in results)
        {
            // Retrieve the value (text) of the barcode.
            string value = pageResult.Text; // Use .Text instead of .Value to retrieve the barcode's readable text.

            // Retrieve the page number on which the barcode was found.
            int pageNum = pageResult.PageNumber;

            // Retrieve the barcode image as a Bitmap.
            System.Drawing.Bitmap img = pageResult.BarcodeBitmap;

            // Retrieve the barcode encoding type.
            BarcodeEncoding barcodeType = pageResult.BarcodeFormat; // Use the appropriate property for encoding type.

            // Retrieve the binary representation of the barcode value.
            byte[] binary = pageResult.BinaryValue;

            // Output the barcode value and page number to the console.
            Console.WriteLine($"{value} on page {pageNum}");
        }
    }
    else
    {
        Console.WriteLine("No barcodes found in the PDF document.");
    }
}
catch (Exception ex)
{
    // Handle exceptions that may occur during barcode reading.
    Console.WriteLine($"An error occurred: {ex.Message}");
}

Imports System

Imports IronBarCode



' This code is designed to read and process multiple barcodes from a PDF document named "MultipleBarcodes.pdf".

Try

	' Read barcodes from the specified PDF document.

	' The BarcodeReader.ReadPdf method returns a collection of BarcodeResult objects.

	Dim results As BarcodeResults = BarcodeReader.ReadPdf("MultipleBarcodes.pdf")



	' Check if any barcodes were found and process the results.

	If results IsNot Nothing AndAlso results.Count > 0 Then

		' Each BarcodeResult represents one barcode found on a specific page of the PDF.

		For Each pageResult In results

			' Retrieve the value (text) of the barcode.

			Dim value As String = pageResult.Text ' Use .Text instead of .Value to retrieve the barcode's readable text.



			' Retrieve the page number on which the barcode was found.

			Dim pageNum As Integer = pageResult.PageNumber



			' Retrieve the barcode image as a Bitmap.

			Dim img As System.Drawing.Bitmap = pageResult.BarcodeBitmap



			' Retrieve the barcode encoding type.

			Dim barcodeType As BarcodeEncoding = pageResult.BarcodeFormat ' Use the appropriate property for encoding type.



			' Retrieve the binary representation of the barcode value.

			Dim binary() As Byte = pageResult.BinaryValue



			' Output the barcode value and page number to the console.

			Console.WriteLine($"{value} on page {pageNum}")

		Next pageResult

	Else

		Console.WriteLine("No barcodes found in the PDF document.")

	End If

Catch ex As Exception

	' Handle exceptions that may occur during barcode reading.

	Console.WriteLine($"An error occurred: {ex.Message}")

End Try

using IronBarCode;

// Multi-frame TIFF and GIF images can also be scanned using IronBarCode.
// The following code reads barcodes from a multi-frame TIFF image.

// Use the BarcodeReader class from the IronBarCode library
// to read barcode data from the specified TIFF file.
BarcodeResults multiFrameResults = BarcodeReader.Read("Multiframe.tiff");

// Iterate over each page result in the multi-frame results.
// Each page in the TIFF can have zero or more barcodes.
foreach (var pageResult in multiFrameResults)
{
    // Process each barcode result from the page.
    // Below, we output the value of the barcode found on each page.
    // Replace this with any processing you need to perform with each barcode.
    Console.WriteLine(pageResult.BarcodeValue);
}

Imports IronBarCode



' Multi-frame TIFF and GIF images can also be scanned using IronBarCode.

' The following code reads barcodes from a multi-frame TIFF image.



' Use the BarcodeReader class from the IronBarCode library

' to read barcode data from the specified TIFF file.

Private multiFrameResults As BarcodeResults = BarcodeReader.Read("Multiframe.tiff")



' Iterate over each page result in the multi-frame results.

' Each page in the TIFF can have zero or more barcodes.

For Each pageResult In multiFrameResults

	' Process each barcode result from the page.

	' Below, we output the value of the barcode found on each page.

	' Replace this with any processing you need to perform with each barcode.

	Console.WriteLine(pageResult.BarcodeValue)

Next pageResult

using IronBarCode; // Import the IronBarCode namespace for barcode reading functionality

// This example demonstrates how to perform barcode reading on multiple documents efficiently using multithreading.
// IronBarCode library is utilized for barcode scanning. Barcodes from images or PDFs will be read using multiple threads, 
// allowing for faster processing of multiple files.

// Define the list of document paths (images or PDFs) to be processed.
var listOfDocuments = new[] { "image1.png", "image2.JPG", "image3.pdf" };

// Configure options for the barcode reader. 
// These options will be used to optimize barcode reading performance across multiple files.
BarcodeReaderOptions options = new BarcodeReaderOptions()
{
    // Enable multithreading. This allows the barcode reading process to handle multiple images or PDFs concurrently.
    Multithreaded = true,
};

// Perform the barcode reading across the list of documents with the specified options.
// batchResults will contain the barcodes read from all provided documents.
BarcodeResults batchResults = BarcodeReader.Read(listOfDocuments, options);

// Note:
// - Ensure that the IronBarCode library is correctly referenced in your project. 
// - The images and PDFs specified in `listOfDocuments` must be accessible at the given paths.

Imports IronBarCode ' Import the IronBarCode namespace for barcode reading functionality



' This example demonstrates how to perform barcode reading on multiple documents efficiently using multithreading.

' IronBarCode library is utilized for barcode scanning. Barcodes from images or PDFs will be read using multiple threads, 

' allowing for faster processing of multiple files.



' Define the list of document paths (images or PDFs) to be processed.

Private listOfDocuments = { "image1.png", "image2.JPG", "image3.pdf" }



' Configure options for the barcode reader. 

' These options will be used to optimize barcode reading performance across multiple files.

Private options As New BarcodeReaderOptions() With {.Multithreaded = True}



' Perform the barcode reading across the list of documents with the specified options.

' batchResults will contain the barcodes read from all provided documents.

Private batchResults As BarcodeResults = BarcodeReader.Read(listOfDocuments, options)



' Note:

' - Ensure that the IronBarCode library is correctly referenced in your project. 

' - The images and PDFs specified in `listOfDocuments` must be accessible at the given paths.