ByteScout Data Extraction Suite – VB.NET – Textextractor progress indication with pdf extractor sdk

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ByteScout Data Extraction Suite – VB.NET – Textextractor progress indication with pdf extractor sdk

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ByteScout-Data-Extraction-Suite-VB-NET-Textextractor-progress-indication-with-pdf-extractor-sdk.pdf

textextractor progress indication with pdf extractor sdk in VB.NET with ByteScout Data Extraction Suite

textextractor progress indication with pdf extractor sdk in VB.NET

We regularly create and update our sample code library so you may quickly learn textextractor progress indication with pdf extractor sdk and the step-by-step process in VB.NET. ByteScout Data Extraction Suite was made to help with textextractor progress indication with pdf extractor sdk in VB.NET. ByteScout Data Extraction Suite is the bundle that includes three SDK tools for data extraction from PDF, scans, images and from spreadsheets: PDF Extractor SDK, Data Extraction SDK, Barcode Reader SDK.

The below SDK samples describe how to quickly make your application do textextractor progress indication with pdf extractor sdk in VB.NET with the help of ByteScout Data Extraction Suite. If you want to implement this functionality, you should copy and paste code below into your app using code editor. Then compile and run your application. VB.NET application implementation mostly involves various stages of the software development so even if the functionality works please check it with your data and the production environment.

Trial version can be downloaded from our website for free. It contains this and other source code samples for VB.NET.

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Program.vb

      Imports Bytescout.PDFExtractor

Module Program

    Sub Main()

        Try
            ' Read all file content...
            Using extractor As TextExtractor = New TextExtractor()
                ' Load document
                extractor.LoadDocumentFromFile("sample.png")

                ' Extractor Progress event
                Console.WriteLine("Text Extraction in progress: " & vbLf)
                AddHandler extractor.ProgressChanged, AddressOf Extractor_ProgressChanged

                ' Set option to repair text
                extractor.OCRMode = OCRMode.TextFromImagesAndVectorsAndRepairedFonts

                ' Enable Optical Character Recognition (OCR)
                ' in .Auto mode (SDK automatically checks if needs to use OCR or not)
                extractor.OCRMode = OCRMode.Auto

                ' Set the location of OCR language data files
                extractor.OCRLanguageDataFolder = "c:\Program Files\Bytescout PDF Extractor SDK\ocrdata\"

                ' Set OCR language
                extractor.OCRLanguage = "eng" ' "eng" for english, "deu" for German, "fra" for French, "spa" for Spanish etc - according to files in "ocrdata" folder
                ' Find more language files at https://github.com/bytescout/ocrdata

                ' Set PDF document rendering resolution
                extractor.OCRResolution = 300

                ' Read all text
                Dim allExtractedText = extractor.GetText()
                Console.WriteLine(vbLf & vbLf & "Extracted Text:" & vbLf & vbLf & "{0}", allExtractedText)
            End Using

        Catch ex As Exception
            Console.WriteLine(ex.Message)
        End Try

        Console.WriteLine("Press enter key to exit...")
        Console.ReadLine()

    End Sub


    ''' <summary>
    ''' Handle progress change event
    ''' </summary>
    Private Sub Extractor_ProgressChanged(ByVal sender As Object, ByVal ongoingOperation As OngoingOperation, ByVal progress As Double, ByRef cancel As Boolean)
        drawTextProgressBar(Convert.ToInt32(progress), 100)
    End Sub

    ''' <summary>
    ''' Display progress bar
    ''' </summary>
    Private Sub drawTextProgressBar(ByVal progress As Integer, ByVal total As Integer)
        'draw empty progress bar
        Console.CursorLeft = 0
        Console.Write("[") ' start
        Console.CursorLeft = 32
        Console.Write("]") ' end
        Console.CursorLeft = 1
        Dim onechunk As Single = 30.0F / total
        Dim position As Integer = 1

        ' draw filled part
        For i As Integer = 0 To onechunk * progress - 1
            Console.BackgroundColor = ConsoleColor.Green
            Console.CursorLeft = Math.Min(System.Threading.Interlocked.Increment(position), position - 1)
            Console.Write(" ")
        Next

        ' draw unfilled part
        For i As Integer = position To 31
            Console.BackgroundColor = ConsoleColor.Gray
            Console.CursorLeft = Math.Min(System.Threading.Interlocked.Increment(position), position - 1)
            Console.Write(" ")
        Next

        ' draw totals
        Console.CursorLeft = 35
        Console.BackgroundColor = ConsoleColor.Black
        Console.Write(progress.ToString() & " of " & total.ToString() & "    ") ' blanks at the end remove any excess
    End Sub

End Module