BarcodeEvent of CCoreScannerClass is fired only in SNAPI mode. For HIDKB mode BarCodeEvent is not getting fired. Below is the vb.net code we are using
 
Imports CoreScanner
Imports System.Collections.Generic
Imports System.Text
 
Public Class Form1
  Public WithEvents cCoreScannerClass As CCoreScannerClass
 
  Public Sub OnBarcodeEvent(eventType As Short, ByRef pscanData As String) Handles cCoreScannerClass.BarcodeEvent
       MessageBox.Show(pscanData)
  End Sub
 
  Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
       cCoreScannerClass = New CCoreScannerClass
       Dim scannertype(1) As Short
       scannertype(0) = 1
       Dim numberOfScannerTypes As Short
       numberOfScannerTypes = 1
       Dim status As Integer
 
       cCoreScannerClass.Open(0, scannertype, numberOfScannerTypes, status)
       AddHandler cCoreScannerClass.BarcodeEvent, AddressOf OnBarcodeEvent
       Dim opcode As Integer = 1001
       Dim outXML As String
       Dim inXML = "" +
         "" +
         "1" +
         "1" +
         "" +
       ""
       cCoreScannerClass.ExecCommand(opcode, inXML, outXML, status)
  End Sub
End Class
 
I have read that for HIDKB mode BarCodeEvent will not get fired, so in this case how are we going to get separator for variable length field.