/*
Create a new linear barcode object in C#.NET,
and change the creating symbology to EAN13 barcode type
*/
BarCode barcode = new BarCode();
barcode.SymbologyType = SymbologyType.EAN13;

/*
Assign 12 data digits that are encoded into EAN13 barcode symbology.
Encodable character set of EAN13 is as follow,
Numeric characters: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
EAN13 symbology encodes a fixed data length of 13 digits inclusive of the check digit
*/
barcode.CodeText = "123456789012";

/*
Enable the checksum option for EAN13 barcode symbology
so that the barcode library computes the check digit automatically
*/
barcode.EnableChecksum = true;

//Select the graphic measurements as Pixel to EAN13 barcode
barcode.GraphicsUnit = KeepDynamic.Barcode.Generator.GraphicsUnit.Pixel;

//Set the values of bar width and bar height to EAN13 barcode
barcode.X = 1;
barcode.Y = 75;

//Set the margin distance around the EAN13 barcode symbol
barcode.LeftMargin = 10;
barcode.RightMargin = 10;
barcode.TopMargin = 10;
barcode.BottomMargin = 10;

// Adjust generate EAN-13 barcode symbol width & height
barcode.BarCodeWidth = 150;
barcode.BarCodeHeight = 120;

/*
Set the resolution of EAN13 barcode image that is drawn to,
and change the EAN13 barcode image orientation
*/
barcode.Resolution = 72;
barcode.Rotate = Rotate.Rotate0;

/*
Display the characters encoded into the EAN13 barcode symbology
Set the font style of characters encoded into the EAN13 barcode
*/
barcode.DisplayCodeText = true;
barcode.CodeTextFont = new System.Drawing.Font("Arial", 11f, System.Drawing.FontStyle.Regular);

/*
Set EAN13 barcode drawing image format to PNG in C#.NET
Generate EAN13 barcode image in C#
*/
barcode.Format = System.Drawing. Imaging.ImageFormat.Png;
barcode.drawBarcode("C://barcode-ean13-csharp.png");

// other barcode outputting ways:
// output generated barcode to byte array
byte[] barcodeInBytes = barcode.drawBarcodeAsBytes();
    
// output generated barcode to Graphics object
Graphics graphics = ...;
barcode.drawBarcode(graphics);
    
// output generated barcode to Bitmap object
Bitmap barcodeInBitmap = barcode.drawBarcode();
    
// draw created barcode to HttpResponse object
HttpResponse response = ...;
barcode.drawBarcode(response);
    
// save generated barcode images to Stream object
Stream stream = ...;
barcode.drawBarcode(stream);