/// <summary>
/// Allows to read barcodes from image file.
/// </summary>
public static class ImageFileBarcodeReader
{
    /// <summary>
    /// Initializes the <see cref="ImageFileBarcodeReader"/> class.
    /// </summary>
    static ImageFileBarcodeReader()
    {
        // Vintasoft.Barcode.dll allows to load bitmap from BMP, JPEG, PNG files using built-in image codecs
        
        // Uncomment initialization of platform extension below, if necessary:

        // Vintasoft.Barcode.Gdi.dll allows to load bitmap from BMP, GIF, JPEG, PNG, TIFF files using image codecs from System.Drawing library
        //Vintasoft.Barcode.GdiAssembly.Init();

        // Vintasoft.Barcode.Wpf.dll allows to load bitmap from BMP, GIF, JPEG, PNG, TIFF files using image codecs from WPF
        //Vintasoft.Barcode.WpfAssembly.Init();

        // Vintasoft.Barcode.ImageSharp.dll allows to load bitmap from BMP, JPEG, PBM, PNG, TGA, TIFF, WEBP files using image codecs from SixLabors.ImageSharp library
        //Vintasoft.Barcode.ImageSharpAssembly.Init();

        // Vintasoft.Barcode.SkiaSharp.dll allows to load bitmap from BMP, DNG, GIF, HEIF, JPEG, PNG, WEBP files using image codecs from SkiaSharp library
        //Vintasoft.Barcode.SkiaSharpAssembly.Init();
    }

    /// <summary>
    /// Reads barcodes from an image file.
    /// </summary>
    /// <param name="filename">A path to an image file.</param>
    public static void ReadBarcodesFromImage(string filename)
    {
        // create barcode reader
        using (Vintasoft.Barcode.BarcodeReader reader = new Vintasoft.Barcode.BarcodeReader())
        {
            // specify that reader must search for Code39, Code39Extended,
            // Code128, SSCC18 and DataMatrix barcodes
            reader.Settings.ScanBarcodeTypes =
                Vintasoft.Barcode.BarcodeType.Code39 |
                Vintasoft.Barcode.BarcodeType.Code128 |
                Vintasoft.Barcode.BarcodeType.DataMatrix;
            reader.Settings.ScanBarcodeSubsets.Add(Vintasoft.Barcode.SymbologySubsets.BarcodeSymbologySubsets.Code39Extended);
            reader.Settings.ScanBarcodeSubsets.Add(Vintasoft.Barcode.SymbologySubsets.BarcodeSymbologySubsets.SSCC18);

            // read barcodes from image file
            Vintasoft.Barcode.IBarcodeInfo[] infos = reader.ReadBarcodes(filename);

            // if barcodes are not detected
            if (infos.Length == 0)
            {
                Console.WriteLine("No barcodes found.");
            }
            // if barcodes are detected
            else
            {
                // get information about extracted barcodes

                Console.WriteLine(string.Format("{0} barcodes found:", infos.Length));
                Console.WriteLine();
                for (int i = 0; i < infos.Length; i++)
                {
                    Vintasoft.Barcode.IBarcodeInfo info = infos[i];
                    Console.WriteLine(string.Format("[{0}:{1}]", i + 1, info.BarcodeType));
                    Console.WriteLine(string.Format("Value:      {0}", info.Value));
                    Console.WriteLine(string.Format("Region:     {0}", info.Region));
                    Console.WriteLine();
                }
            }
        }
    }
}

''' <summary>
''' Allows to read barcodes from image file.
''' </summary>
Public NotInheritable Class ImageFileBarcodeReader
    Private Sub New()
    End Sub
    ''' <summary>
    ''' Initializes the <see cref="ImageFileBarcodeReader"/> class.
    ''' </summary>
            ' Vintasoft.Barcode.dll allows to load bitmap from BMP, JPEG, PNG files using built-in image codecs

            ' Uncomment initialization of platform extension below, if necessary:

            ' Vintasoft.Barcode.Gdi.dll allows to load bitmap from BMP, GIF, JPEG, PNG, TIFF files using image codecs from System.Drawing library
            'Vintasoft.Barcode.GdiAssembly.Init();

            ' Vintasoft.Barcode.Wpf.dll allows to load bitmap from BMP, GIF, JPEG, PNG, TIFF files using image codecs from WPF
            'Vintasoft.Barcode.WpfAssembly.Init();

            ' Vintasoft.Barcode.ImageSharp.dll allows to load bitmap from BMP, JPEG, PBM, PNG, TGA, TIFF, WEBP files using image codecs from SixLabors.ImageSharp library
            'Vintasoft.Barcode.ImageSharpAssembly.Init();

            ' Vintasoft.Barcode.SkiaSharp.dll allows to load bitmap from BMP, DNG, GIF, HEIF, JPEG, PNG, WEBP files using image codecs from SkiaSharp library
            'Vintasoft.Barcode.SkiaSharpAssembly.Init();
    Shared Sub New()
    End Sub

    ''' <summary>
    ''' Reads barcodes from an image file.
    ''' </summary>
    ''' <param name="filename">A path to an image file.</param>
    Public Shared Sub ReadBarcodesFromImage(filename As String)
        ' create barcode reader
        Using reader As New Vintasoft.Barcode.BarcodeReader()
            ' specify that reader must search for Code39, Code39Extended,
            ' Code128, SSCC18 and DataMatrix barcodes
            reader.Settings.ScanBarcodeTypes = Vintasoft.Barcode.BarcodeType.Code39 Or Vintasoft.Barcode.BarcodeType.Code128 Or Vintasoft.Barcode.BarcodeType.DataMatrix
            reader.Settings.ScanBarcodeSubsets.Add(Vintasoft.Barcode.SymbologySubsets.BarcodeSymbologySubsets.Code39Extended)
            reader.Settings.ScanBarcodeSubsets.Add(Vintasoft.Barcode.SymbologySubsets.BarcodeSymbologySubsets.SSCC18)

            ' read barcodes from image file
            Dim infos As Vintasoft.Barcode.IBarcodeInfo() = reader.ReadBarcodes(filename)

            ' if barcodes are not detected
            If infos.Length = 0 Then
                Console.WriteLine("No barcodes found.")
            Else
                ' if barcodes are detected
                ' get information about extracted barcodes

                Console.WriteLine(String.Format("{0} barcodes found:", infos.Length))
                Console.WriteLine()
                For i As Integer = 0 To infos.Length - 1
                    Dim info As Vintasoft.Barcode.IBarcodeInfo = infos(i)
                    Console.WriteLine(String.Format("[{0}:{1}]", i + 1, info.BarcodeType))
                    Console.WriteLine(String.Format("Value:      {0}", info.Value))
                    Console.WriteLine(String.Format("Region:     {0}", info.Region))
                    Console.WriteLine()
                Next
            End If
        End Using
    End Sub
End Class