How to Use aspose. barcode to read a barcode from a multi-page TIFF image

Reading a bar code from a multi-page TIFF file is a common problem. The following is a sample code that uses aspose. barcode to solve this problem:

[C #]

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//Calculate the pages count System.Drawing.Image img = Image.FromFile(@".\multi-page.tif"); Guid guid = img.FrameDimensionsList[0]; FrameDimension dimension = new FrameDimension(guid); int totalFrame = img.GetFrameCount(dimension);   //Feed the pages to BarCodeReader one by one BarCodeReader rd = new BarCodeReader(new Bitmap(img)); for (int i = 0; i < totalFrame; i++) {     // Set the active page and feed it to the BarCodeReader     img.SelectActiveFrame(dimension, i);     Console.Out.WriteLine("Page[" + i + "]");     while(rd.Read())     {         Console.Out.WriteLine("BarCode Found. CodeText: " + rd.GetCodeText());     } } rd.Close();

[VB. NET]

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'Calculate the pages count Dim img As System.Drawing.Image = Image.FromFile(".\multi-page.tif") Dim guid As Guid = img.FrameDimensionsList(0) Dim dimension As FrameDimension = New FrameDimension(guid) Dim totalFrame As Integer = img.GetFrameCount(dimension)   'Feed the pages to BarCodeReader one by one Dim rd As BarCodeReader = New BarCodeReader(New Bitmap(img)) Dim i As Integer = 0 Do While i < totalFrame     ' Set the active page and feed it to the BarCodeReader     img.SelectActiveFrame(dimension, i)     Console.Out.WriteLine("Page[" & i & "]")     Do While rd.Read()         Console.Out.WriteLine("BarCode Found. CodeText: " & rd.GetCodeText())     Loop    i += 1 Looprd.Close()