How to use a Barcode Scanner in a C# Windows Application

using System;
using System.Windows.Forms;
using IronBarCode; // Import the IronBarcode library

namespace BarcodeScannerApp
{
    public partial class Form1 : Form
    {
        // Variable to store the path of the barcode image
        private string imagePath;

        public Form1()
        {
            InitializeComponent();
        }

        // Event handler for the Browse button click event
        private void btnBrowse_Click(object sender, EventArgs e)
        {
            // Create and configure an Open File Dialog
            OpenFileDialog openFileDialog = new OpenFileDialog
            {
                Filter = "Image Files|*.jpg;*.jpeg;*.png;*.bmp", // Allow only common image formats
                Title = "Select a Barcode Image"
            };

            // Show the file dialog and check if the user selected a file
            if (openFileDialog.ShowDialog() == DialogResult.OK)
            {
                // Store the selected file path
                imagePath = openFileDialog.FileName;
                // Load the image into the PictureBox
                pictureBox.Image = System.Drawing.Image.FromFile(imagePath);
            }
        }

        // Event handler for the Scan button click event
        private void btnScan_Click(object sender, EventArgs e)
        {
            if (!string.IsNullOrWhiteSpace(imagePath))
            {
                try
                {
                    // Read the barcode from the image using Iron Barcode
                    BarcodeResult result = BarcodeReader.Read(imagePath);
                    // Display the barcode text in the TextBox
                    txtOutput.Text = result.Text;
                }
                catch (Exception ex)
                {
                    // Handle exceptions and display an error message
                    MessageBox.Show("Error reading barcode: " + ex.Message);
                }
            }
            else
            {
                // Inform the user to select an image if no path is set
                MessageBox.Show("Please select an image first.");
            }
        }
    }
}

Imports System
Imports System.Windows.Forms
Imports IronBarCode ' Import the IronBarcode library

Namespace BarcodeScannerApp
	Partial Public Class Form1
		Inherits Form

		' Variable to store the path of the barcode image
		Private imagePath As String

		Public Sub New()
			InitializeComponent()
		End Sub

		' Event handler for the Browse button click event
		Private Sub btnBrowse_Click(ByVal sender As Object, ByVal e As EventArgs)
			' Create and configure an Open File Dialog
			Dim openFileDialog As New OpenFileDialog With {
				.Filter = "Image Files|*.jpg;*.jpeg;*.png;*.bmp",
				.Title = "Select a Barcode Image"
			}

			' Show the file dialog and check if the user selected a file
			If openFileDialog.ShowDialog() = System.Windows.Forms.DialogResult.OK Then
				' Store the selected file path
				imagePath = openFileDialog.FileName
				' Load the image into the PictureBox
				pictureBox.Image = System.Drawing.Image.FromFile(imagePath)
			End If
		End Sub

		' Event handler for the Scan button click event
		Private Sub btnScan_Click(ByVal sender As Object, ByVal e As EventArgs)
			If Not String.IsNullOrWhiteSpace(imagePath) Then
				Try
					' Read the barcode from the image using Iron Barcode
					Dim result As BarcodeResult = BarcodeReader.Read(imagePath)
					' Display the barcode text in the TextBox
					txtOutput.Text = result.Text
				Catch ex As Exception
					' Handle exceptions and display an error message
					MessageBox.Show("Error reading barcode: " & ex.Message)
				End Try
			Else
				' Inform the user to select an image if no path is set
				MessageBox.Show("Please select an image first.")
			End If
		End Sub
	End Class
End Namespace