VintaSoft Barcode .NET SDK 14.3: Documentation for .NET developer
In This Topic
    How to draw barcode with specified size and resolution?
    In This Topic
    Example: Here is an example that shows how to draw barcode with specified size and resolution.
    /// <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