How to Read EAN-8 in C# & VB.NET

In all, there are nine APIs are simple to be implemented in C# and VB.NET EAN-8 decoding applications, which enables programmers to not only recognize all barcode types from loaded image file but also choose to read EAN-8 barcode symbology only. Please see detailed APIs and sample coding in the following parts.

C# Demo: Tell Scanner to Scan EAN-8 Only

This Visual C# programming demo is used to direct our barcode decoder library to only read all EAN-8 barcodes from loaded image source. You may also see another two APIs for recognizing EAN-8 from images in Bitmap and Stream values.

public void ScanEAN8FromFile(string filename)
{
  // Detect and read EAN-8 only in C#.NET program.
  BarcodeResult[] results = BarCodeScanner.Scan(filename, BarCodeType.EAN8);

  // Used to detect and read EAN-8 from image source in Bitmap or Stream value.
  // public static BarcodeResult[] Scan(Bitmap bitmap, BarCodeType barType);
  // public static BarcodeResult[] Scan(Stream stream, BarCodeType barType);

  foreach (BarcodeResult result in results)
  {
    Console.WriteLine(result.BarType.ToString() + "-" + result.Data);
  }
}

Moreover, we provide the way to improve the accuracy of barcode reading. If your image has only one EAN-8 barcode, please try the following C# sample code.

Bitmap bmp = new Bitmap("YourImagePath");
BarcodeResult barcode = BarCodeScanner.ScanSingle(bmp);
Console.WriteLine("barcode data:{0}.", barcode.Data);

VB.NET Demo: Tell Scanner to Decode All Barcode Types

The following .NET APIs and VB.NET class code are designed for reading all barcode types including EAN-8 linear barcode from image file in Visual Basic .NET application.

Public Sub ScanAllFromFile(ByVal filename As String)
  ' Detect and scan all barcode types from a local image file.
  Dim results() As BarcodeResult = BarCodeScanner.Scan(filename)

  ' Used to detect and scan all barcode types from a loaded image in Bitmap or Stream value.
  ' public static BarcodeResult[] Scan(Bitmap bitmap)
  ' public static BarcodeResult[] Scan(Stream stream)

  Dim result As BarcodeResult
  For Each result In results
    Console.WriteLine(result.BarType.ToString() + "-" + result.Data)
  Next
End Sub

To read only one EAN-8 barcode from your image in VB.NET project, you can use the following sample code. It helps to improve barcode recognition accuracy.

Dim bmp As Bitmap = New Bitmap("YourImagePath")
Dim barcode As BarcodeResult = BarCodeScanner.ScanSingle(bmp)
Console.WriteLine("barcode data:{0}.", barcode.Data)

Besides EAN-8 linear bar code, our Barcode Reader Component for .NET also supports other bar codes recognition in Visual Studio C# and VB.NET programs, like EAN-13, Codabar, Code 39, Code 128, UPC-A, UPC-E, ITF-14, QR Code, etc. If you have requests or questions, please contact us via email (support@pqscan.com).