/// <summary>
/// This example shows how to draw a barcode with specified size and resolution.
/// </summary>
public static class DrawBarcodeWithSpecifiedSizeAndResolution
{
    /// <summary>
    /// Initializes the <see cref="DrawBarcodeWithSpecifiedSizeAndResolution"/> class.
    /// </summary>
    static DrawBarcodeWithSpecifiedSizeAndResolution()
    {
        // initialize Vintasoft.Barcode.Gdi assembly - must be called only once
        Vintasoft.Barcode.GdiAssembly.Init();
    }

    /// <summary>
    /// Creates a barcode image and saves it to specified path.
    /// </summary>
    /// <param name="filename">The filename of result barcode image.</param>
    public static void TestDrawBarcode(string filename)
    {
        // draw barcode with size 6 x 2 cm and resolution 300 dpi
        using (Vintasoft.Imaging.VintasoftBitmap barcodeImage = DrawBarcode(
            Vintasoft.Barcode.BarcodeType.Code128,
            "TESTBARCODE",
            300,
            6,
            2,
            Vintasoft.Barcode.UnitOfMeasure.Centimeters))
        {
            // save barcode image to a file
            Vintasoft.Barcode.ImageCodecs.Default.Encode(barcodeImage, filename);
        }
    }

    /// <summary>
    /// Creates a bitmap with specified barcode.
    /// </summary>
    /// <param name="barcode">Barcode to draw.</param>
    /// <param name="value">Barcode value.</param>
    /// <param name="resolution">Bitmap resolution.</param>
    /// <param name="width">Bitmap width.</param>
    /// <param name="height">Bitmap height.</param>
    /// <param name="units">Size units.</param>
    public static Vintasoft.Imaging.VintasoftBitmap DrawBarcode(
        Vintasoft.Barcode.BarcodeType barcode,
        string value,
        float resolution,
        float width,
        float height,
        Vintasoft.Barcode.UnitOfMeasure units)
    {
        // create the barcode writer
        using (Vintasoft.Barcode.BarcodeWriter writer = new Vintasoft.Barcode.BarcodeWriter())
        {
            // set barcode writer settings
            writer.Settings.Barcode = barcode;
            writer.Settings.Value = value;
            writer.Settings.Resolution = resolution;
            writer.Settings.PixelFormat = Vintasoft.Barcode.BarcodeImagePixelFormat.Bgr24;

            // return barcode image
            return writer.GetBarcodeAsVintasoftBitmap(width, height, units);
        }
    }
}

''' <summary>
''' This example shows how to draw a barcode with specified size and resolution.
''' </summary>
Public NotInheritable Class DrawBarcodeWithSpecifiedSizeAndResolution
    Private Sub New()
    End Sub
    ''' <summary>
    ''' Initializes the <see cref="DrawBarcodeWithSpecifiedSizeAndResolution"/> class.
    ''' </summary>
    Shared Sub New()
        ' initialize Vintasoft.Barcode.Gdi assembly - must be called only once
        Vintasoft.Barcode.GdiAssembly.Init()
    End Sub

    ''' <summary>
    ''' Creates a barcode image and saves it to specified path.
    ''' </summary>
    ''' <param name="filename">The filename of result barcode image.</param>
    Public Shared Sub TestDrawBarcode(filename As String)
        ' draw barcode with size 6 x 2 cm and resolution 300 dpi
        Using barcodeImage As Vintasoft.Imaging.VintasoftBitmap = DrawBarcode(Vintasoft.Barcode.BarcodeType.Code128, "TESTBARCODE", 300, 6, 2, Vintasoft.Barcode.UnitOfMeasure.Centimeters)
            ' save barcode image to a file
            Vintasoft.Barcode.ImageCodecs.[Default].Encode(barcodeImage, filename)
        End Using
    End Sub

    ''' <summary>
    ''' Creates a bitmap with specified barcode.
    ''' </summary>
    ''' <param name="barcode">Barcode to draw.</param>
    ''' <param name="value">Barcode value.</param>
    ''' <param name="resolution">Bitmap resolution.</param>
    ''' <param name="width">Bitmap width.</param>
    ''' <param name="height">Bitmap height.</param>
    ''' <param name="units">Size units.</param>
    Public Shared Function DrawBarcode(barcode As Vintasoft.Barcode.BarcodeType, value As String, resolution As Single, width As Single, height As Single, units As Vintasoft.Barcode.UnitOfMeasure) As Vintasoft.Imaging.VintasoftBitmap
        ' create the barcode writer
        Using writer As New Vintasoft.Barcode.BarcodeWriter()
            ' set barcode writer settings
            writer.Settings.Barcode = barcode
            writer.Settings.Value = value
            writer.Settings.Resolution = resolution
            writer.Settings.PixelFormat = Vintasoft.Barcode.BarcodeImagePixelFormat.Bgr24

            ' return barcode image
            Return writer.GetBarcodeAsVintasoftBitmap(width, height, units)
        End Using
    End Function
End Class