Public ReadOnly Property IndexDuplicate As Integer

Visual Basic (Usage)	Copy Code
Dim instance As BarcodeData Dim value As Integer   value = instance.IndexDuplicate

public int IndexDuplicate {get;}

public:
property int IndexDuplicate {
   int get();
}

Return Value

>=0, Next duplicated index.

-1, The barcode is not duplicated.

0xFF, The barcode is the last duplicated one.

The Read method updates the value of this property.

LEADTOOLS provides a number of functions to let you work with duplicated barcodes. They let you:

• Find the number of duplicates of a specific barcode
• Determine whether a specific barcode is duplicated
• Get the index of the first duplicated barcode
• Get the index of a subsequent barcode

To determine whether a barcode is duplicated, use the IsDuplicated property. If a barcode is duplicated, the DuplicatedIndex property will return the index of the first barcode in the array after the specified barcode, which is a duplicate of the specified barcode. The DuplicateCount property will get the total number of barcodes duplicated for the current barcode.

If you know the index of a barcode within an array, use the IndexDuplicate property to get the next instance of a duplicated barcode. Call the GetFirstDuplicatedIndex method to find the index of the first barcode in the array that is a duplicate of the barcode at the specified index. Call the GetNextDuplicated method to find the index of the next barcode in the array that is a duplicate of the barcode at the specified index.

To find out how many sets of barcodes are duplicated (for example, in an array of ten barcodes, the first, third, and fifth might be duplicates of each other, while the 4th, 8th and 9th are duplicates of a different barcode), use the following code:

VB

Private Function GetSetsCount(ByRef barcodeData As RasterCollection(Of BarcodeData)) As 
           Integer
 Dim i As Integer
 Dim j As Integer
 Dim count As Integer
 Dim 
           visited() As Boolean
 ReDim visited(barcodeData.Count)

count = 0
 For i = 0 To barcodeData.Count - 1
 If visited(i) Then
 
           Continue For
 End If
 visited(i) = True
 count += 1
 j = i
 While 
           barcodeData(j).IndexDuplicate <> -1 And barcodeData(j).IndexDuplicate <> 255
 j = 
           barcodeData(j).IndexDuplicate
 visited(j) = True
 End While
 Next
 Return 
           count
 End Function

C#

public int GetSetsCount(RasterCollection<BarcodeData> barcodeData)
{
 int 
            i, j, count;
 bool [] visited = new bool [barcodeData.Count];
 count = 0;
 for (i = 
            0; i < barcodeData.Count; i++)
 {
 if (visited[i])
 continue;
 visited[i] = 
            true;
 count++;
 j = i;
 while (barcodeData[j].IndexDuplicate != -1 &&
 
            barcodeData[j].IndexDuplicate != 255)
 {
 j = barcodeData[j].IndexDuplicate;
 
            visited[j] = true;
 }
 }
 return count;
}

After this code is executed, count will contain the number of different sets of barcodes.

Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

Reference