How to Use Async and Multithread

using IronBarCode;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;

// Entry point for the application
MainAsync().GetAwaiter().GetResult();

/// <summary>
/// This method processes a list of image file paths to read barcodes.
/// It is an asynchronous method that leverages the IronBarCode library to read barcodes from images.
/// </summary>
/// <returns>A Task representing the asynchronous operation.</returns>
async Task MainAsync()
{
    // List of image file paths to process
    List<string> imagePaths = new List<string> { "image1.png", "image2.png" };

    // Configure barcode reading options to expect multiple barcodes
    BarcodeReaderOptions options = new BarcodeReaderOptions
    {
        ExpectMultipleBarcodes = true
    };

    try
    {
        // Read barcodes asynchronously from the images
        BarcodeResults asyncResult = await BarcodeReader.ReadAsync(imagePaths, options);

        // Iterate over each detected barcode and print its details to the console
        foreach (var result in asyncResult)
        {
            Console.WriteLine(result.ToString());
        }
    }
    catch (Exception ex)
    {
        // Handle any exceptions that occur during barcode reading
        Console.WriteLine($"An error occurred: {ex.Message}");
    }
}

Imports IronBarCode
Imports System
Imports System.Collections.Generic
Imports System.Threading.Tasks

' Entry point for the application
MainAsync().GetAwaiter().GetResult()

''' <summary>
''' This method processes a list of image file paths to read barcodes.
''' It is an asynchronous method that leverages the IronBarCode library to read barcodes from images.
''' </summary>
''' <returns>A Task representing the asynchronous operation.</returns>
'INSTANT VB TODO TASK: Local functions are not converted by Instant VB:
'async Task MainAsync()
'{
'	' List of image file paths to process
'	List<string> imagePaths = New List<string> { "image1.png", "image2.png" };
'
'	' Configure barcode reading options to expect multiple barcodes
'	BarcodeReaderOptions options = New BarcodeReaderOptions { ExpectMultipleBarcodes = True };
'
'	try
'	{
'		' Read barcodes asynchronously from the images
'		BarcodeResults asyncResult = await BarcodeReader.ReadAsync(imagePaths, options);
'
'		' Iterate over each detected barcode and print its details to the console
'		foreach (var result in asyncResult)
'		{
'			Console.WriteLine(result.ToString());
'		}
'	}
'	catch (Exception ex)
'	{
'		' Handle any exceptions that occur during barcode reading
'		Console.WriteLine(string.Format("An error occurred: {0}", ex.Message));
'	}
'}

using IronBarCode;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;

// The main program class containing the entry point of the application
class Program
{
    // Asynchronous main entry point of the application
    static async Task Main(string[] args)
    {
        // Create a list of image file paths to be scanned for barcodes
        List<string> imagePaths = new List<string> { "test1.jpg", "test2.png" };

        // Configure the barcode reader options
        BarcodeReaderOptions options = new BarcodeReaderOptions()
        {
            Multithreaded = true, // Enable multithreading to enhance processing speed
            MaxParallelThreads = 4, // Limit the maximum parallel threads to 4 for controlled concurrency
            ExpectMultipleBarcodes = true // Specify that the images may contain multiple barcodes
        };

        try
        {
            // Use the BarcodeReader to asynchronously read barcodes from the image paths
            BarcodeResults results = await BarcodeReader.ReadAsync(imagePaths, options);

            // Iterate through each result and print the decoded barcode information
            foreach (var result in results)
            {
                Console.WriteLine(result.ToString()); // Display the result information
            }
        }
        catch (Exception ex)
        {
            // Handle potential exceptions, such as file read errors or processing errors
            Console.WriteLine($"An error occurred: {ex.Message}");
        }
    }
}

Imports IronBarCode
Imports System
Imports System.Collections.Generic
Imports System.Threading.Tasks

' The main program class containing the entry point of the application
Friend Class Program
	' Asynchronous main entry point of the application
	Shared Async Function Main(ByVal args() As String) As Task
		' Create a list of image file paths to be scanned for barcodes
		Dim imagePaths As New List(Of String) From {"test1.jpg", "test2.png"}

		' Configure the barcode reader options
		Dim options As New BarcodeReaderOptions() With {
			.Multithreaded = True,
			.MaxParallelThreads = 4,
			.ExpectMultipleBarcodes = True
		}

		Try
			' Use the BarcodeReader to asynchronously read barcodes from the image paths
			Dim results As BarcodeResults = Await BarcodeReader.ReadAsync(imagePaths, options)

			' Iterate through each result and print the decoded barcode information
			For Each result In results
				Console.WriteLine(result.ToString()) ' Display the result information
			Next result
		Catch ex As Exception
			' Handle potential exceptions, such as file read errors or processing errors
			Console.WriteLine($"An error occurred: {ex.Message}")
		End Try
	End Function
End Class