Use aspose. barcode and aspose. Words to recognize the bar code from the Word documents.

Source: huide Control Network

In this article, we will use the aspose. barcode and aspose. Words controls to recognize bar codes from Word documents. The procedure is as follows:

1. Use aspose. Words for. Net to extract images from documents

2. Save the extracted image as a stream

3. Pass the image to aspose. barcode for. NET as a stream

4. Read the barcode from the image

[C #]

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// Load the word document Document wordDocument = new Document("Invitation.doc");// get all the shapes NodeCollection shapes = wordDocument.GetChildNodes(NodeType.Shape, true, false); // loop through all the shapes foreach (Shape shape in shapes){     // check if it has an image     if (shape.HasImage)     {         // save the image in memory stream         MemoryStream imgStream = new MemoryStream();         shape.ImageData.Save(imgStream);           // recognize the barcode from the image stream above        BarCodeReader reader = new BarCodeReader(new Bitmap(imgStream), BarCodeReadType.Code39Standard);        while(reader.Read())         {             Console.WriteLine("Codetext found: "+ reader.GetCodeText());         }         // close the reader         reader.Close();     }

[VB. NET]

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' Load the word document Dim wordDocument As Document = New Document("Invitation.doc") ' get all the shapes Dim shapes As NodeCollection = wordDocument.GetChildNodes(NodeType.Shape,True, False) ' loop through all the shapes For Each shape As Shape In shapes    ' check if it has an image    If shape.HasImage Then      ' save the image in memory stream       Dim imgStream As MemoryStream = New MemoryStream()       shape.ImageData.Save(imgStream)         ' recognize the barcode from the image stream above      Dim reader As BarCodeReader = New BarCodeReader(NewBitmap(imgStream), BarCodeReadType.Code39Standard)       Do While reader.Read()          Console.WriteLine("Codetext found: "& reader.GetCodeText())       Loop      ' close the reader       reader.Close()    End IfNext shape