How to generate barcode image with transparent background?

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Transparent colors are supported in RGBA images, i.e. in 32- and 64-bit images.

Here is C# example that demonstrates how to generate barcode with transparent background:

public static System.Drawing.Bitmap GenerateBarcodeWithTransparentBackground(Vintasoft.Barcode.BarcodeType type, string value)
{
    Vintasoft.Barcode.BarcodeWriter writer = new Vintasoft.Barcode.BarcodeWriter();
    writer.Settings.Barcode = type;
    writer.Settings.Value = value;
    writer.Settings.PixelFormat = Vintasoft.Barcode.BarcodeImagePixelFormat.Bgra32;
    writer.Settings.BackColor = System.Drawing.Color.Transparent;
    return writer.GetBarcodeAsBitmap();
}

VB.NET

Public Shared Function GenerateBarcodeWithTransparentBackground(_
    type As Vintasoft.Barcode.BarcodeType, value As String) As System.Drawing.Bitmap

    Dim writer As New Vintasoft.Barcode.BarcodeWriter()
    writer.Settings.Barcode = type
    writer.Settings.Value = value
    writer.Settings.PixelFormat = Vintasoft.Barcode.BarcodeImagePixelFormat.Bgra32
    writer.Settings.BackColor = System.Drawing.Color.Transparent
    Return writer.GetBarcodeAsBitmap()
End Function

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