RunJob方法

使用Leadtools;使用Leadtools.Codecs;使用Leadtools.Ocr;使用Leadtools.Document.Writer;使用Leadtools.Forms.Common;使用Leadtools.WinForms;公共类RunJobExample{/ /等待的文档的数量私人int_documentsPending;/ /事件触发时,所有文件都完成了私人AutoResetEvent _allDocumentsFinishedEvent;公共无效Start (){字符串imagesDirectory = LEAD_VARS.ImagesDir;字符串documentsDirectory = Path.Combine (LEAD_VARS.ImagesDir,“RunJobExample”);/ /创建输出(文件)的目录如果(! Directory.Exists (documentsDirectory)){Directory.CreateDirectory (documentsDirectory);}/ /得到所有TIF文件输入(图像)目录字符串[]imageFileNames = Directory.GetFiles (imagesDirectory,“* .tif”);如果(imageFileNames。长度= = 0){Console.WriteLine (“没有图片OCR”);返回;}/ /创建一个新的OCR引擎实例OcrEngineType engineType = OcrEngineType.LEAD;Console.WriteLine (字符串.Format (“启动{0}引擎”engineType));使用(IOcrEngine ocrEngine = OcrEngineManager.CreateEngine (engineType)){ocrEngine.Startup (零,零,零,LEAD_VARS.OcrLEADRuntimeDir);/ /设置PDF文档保存选项:图像/文本与CCITT G4编码为B / WDocumentWriter docWriter = ocrEngine.DocumentWriterInstance;PdfDocumentOptions pdfOptions = docWriter.GetOptions (DocumentFormat.Pdf)作为PdfDocumentOptions;pdfOptions。ImageOverText =真正的;pdfOptions。文档Type = PdfDocumentType.Pdf;pdfOptions。FontEmbedMode = DocumentFontEmbedMode.None;pdfOptions。OneBitImageCompression = OneBitImageCompressionType.FaxG4;docWriter.SetOptions (DocumentFormat。Pdf, pdfOptions);/ /我们要使用多个线程,因此禁用线程/ / IOcrAutoRecognizeManagerIOcrAutoRecognizeManager autoRecognizeManager = ocrEngine.AutoRecognizeManager;autoRecognizeManager。MaximumThreadsPerJob=1;/ /告诉认识经理继续错误autoRecognizeManager。JobErrorMode=OcrAutoRecognizeManagerJobErrorMode.Continue;/ /而不是使用事件来触发当文档完成,/ /我们将使用IOcrAutoRecognizeManager JobCompleted事件/ /减量计数器和触发一个事件当计数器达到0autoRecognizeManager。JobStarted + =新EventHandler < OcrAutoRecognizeRunJobEventArgs > (autoRecognizeManager_JobStarted);autoRecognizeManager。JobCompleted + =新EventHandler < OcrAutoRecognizeRunJobEventArgs > (autoRecognizeManager_JobCompleted);int数= imageFileNames.Length;_documentsPending =计数;_allDocumentsFinishedEvent =新AutoResetEvent (假);为(int我= 0;我<数;我+ +){/ /创建数据的工作字符串imageFileName = imageFileNames[我];字符串name =“文档”+ (i + 1) .ToString ();Console.WriteLine (“排队{1}{0}文件”、名称、imageFileName);JobData data =新JobData ();数据。AutoRecognizeManager = AutoRecognizeManager;数据。ImageFileName = ImageFileName;数据。DocumentFileName =路径。结合(documentsDirectory Path.GetFileNameWithoutExtension (imageFileName) +. pdf”);数据。JobName =名称;/ /队列这个工作ThreadPool.QueueUserWorkItem (新WaitCallback (RunJob)、数据);}/ /等待所有文件完成_allDocumentsFinishedEvent.WaitOne ();_allDocumentsFinishedEvent.Close ();autoRecognizeManager。JobStarted - =新EventHandler < OcrAutoRecognizeRunJobEventArgs > (autoRecognizeManager_JobStarted);autoRecognizeManager。JobCompleted - =新EventHandler < OcrAutoRecognizeRunJobEventArgs > (autoRecognizeManager_JobCompleted);Console.WriteLine (“所有文件完成后,检查结果文件“{0},documentsDirectory);}}私人无效autoRecognizeManager_JobStarted (对象发送方,OcrAutoRecognizeRunJobEventArgs e){/ /这不是严格需要在这个例子中,我们将/ /使用它来显示信息Console.WriteLine (“{0}开始……”,e.Job.JobData.JobName);/ /检查是否我们需要中止如果(AbortJobs (e.Job)){/ /是的,中止所有工作e.Job.AutoRecognizeManager.AbortAllJobs ();}}私人无效autoRecognizeManager_JobCompleted (对象发送方,OcrAutoRecognizeRunJobEventArgs e){字符串消息=字符串.Format (“{0}”完成,e.Job.JobData.JobName);IOcrAutoRecognizeJob工作= e.Job;/ /显示任何错误如果(job.Errors。数= = 0){消息+ =“成功……”;}其他的{消息+ =”错误,第一个错误是“+ job.Errors [0] .Exception.Message;/ /并保存文档中的错误到一个文本文件目录字符串documentFileName = job.JobData.DocumentFileName;字符串textPathName = Path.Combine (Path.GetDirectoryName (documentFileName) Path.GetFileNameWithoutExtension (documentFileName) +“_errors.txt”);使用(StreamWriter作家= File.CreateText (textPathName)){writer.WriteLine (job.JobData.JobName);writer.WriteLine (“数据:);writer.WriteLine (“图像文件的名字:“+ job.JobData.ImageFileName);writer.WriteLine (“第一个页码:”+ job.JobData.FirstPageNumber);writer.WriteLine (“最后的页码:“+ job.JobData.LastPageNumber);writer.WriteLine (”格式:“+ job.JobData.Format);writer.WriteLine (“文档文件的名字:“+ job.JobData.DocumentFileName);writer.WriteLine (错误:“);foreach(OcrAutoRecognizeManagerJobError错误在job.Errors){writer.WriteLine (”页面:{0}在{1}。错误:{2}”、错误。ImagePageNumber,错误。操作,error.Exception.Message);}}}Console.WriteLine(消息);/ /减量的文件数,当我们达到0,做完了/ /因为这将从多个线程调用,我们所需要的/ /使用一个线程安全的过程int等待= Interlocked.Decrement (裁判_documentsPending);/ /如果我们过去的文档,等待主线程如果(等待= = 0){_allDocumentsFinishedEvent.Set ();}}私人类JobData{公共IOcrAutoRecognizeManager AutoRecognizeManager;公共字符串ImageFileName;公共字符串DocumentFileName;公共字符串JobName;}私人无效RunJob (对象状态){JobData数据=状态作为JobData;Console.WriteLine (“{0}”,data.JobName);/ /运行它OcrAutoRecognizeJobData jobData =新OcrAutoRecognizeJobData(数据。ImageFileName,文档为mat.Pdf, data.DocumentFileName);jobData。JobName=数据。JobName;IOcrAutoRecognizeJob工作= data.AutoRecognizeManager.CreateJob (jobData);data.AutoRecognizeManager.RunJob(工作);}私人boolAbortJobs (IOcrAutoRecognizeJob ocrJob){/ /在应用程序中,您可以检查是否堕胎是必需的,例如,如果用户/ /进度条上按下取消按钮或如果你的服务是关闭的。/ /在这个例子中,我们永远不会中止,但你可以改变这段代码返回true/ /在任何条件(或当一个特定的工作即将开始)/ /引擎将中止所有当前和等待工作返回假;}}静态类LEAD_VARS{公共常量字符串ImagesDir =@“C: \ LEADTOOLS21 \ Resources \图片”;公共常量字符串OcrLEADRuntimeDir =@“C: \ LEADTOOLS21 \ Bin \常见\ OcrLEADRuntime”;}