Leadtools.Forms.Ocr Assembly Changes

Leadtools.Forms.Ocr Assembly Changes from Version 17 to Version 17.5

New Library

WinRT support - LEADTOOLS V17.5 adds WinRT support for LEADTOOLS Forms OCR with the new LEADTOOLS WinRT SDK. The LEADTOOLS WinRT SDK contains everything a developer needs to create imaging-enabled Windows Store applications. It is available as an add-on to any of the Document or Medical products.

The following Library has been added to LEADTOOLS v17.5:

Assemblies	Metadata	Comments
Leadtools.Forms.Ocr.DLL	Leadtools.Forms.Ocr.winmd	Provides classes to recognize text and magnetic ink characters in images and save recognition results to several different kinds of output formats.

New Types

The following types have been added in v17.5:

Type	Description
Leadtools.Forms.Ocr.OcrComponentMissingException	The exception that is thrown when trying to use an OCR feature supported but not installed.
Leadtools.Forms.Ocr.OcrSpellCheckEngine	OCR spell checker type

New Members

The following members have been added to existing types in v17.5:

Member	Description
Leadtools.Forms.Ocr.IOcrLanguageManager.DetectLanguage	Detects the language used in the specified IOcrPage from a list of languages that is provided by the user.
Leadtools.Forms.Ocr.IOcrPageCharacters.UpdateWord(System.Collections.Generic.IList{Leadtools.Forms.Ocr.OcrWord},System.Int32,System.Int32,System.String)	Updates or deletes a word in the recognized words list.
Leadtools.Forms.Ocr.IOcrDocumentManager.GetSupportedEngineFormats	Gets a list of the engine native formats supported by this Leadtools.Forms.Ocr.IOcrEngine.
Leadtools.Forms.Ocr.IOcrDocumentManager.GetAdditionalEngineFormats	Gets a list of the engine native formats supported by this Leadtools.Forms.Ocr.IOcrEngine but not installed.
Leadtools.Forms.Ocr.IOcrSpellCheckManager.GetSupportedSpellCheckEngines	Gets a list of the spell checker supported by this OCR engine type.
Leadtools.Forms.Ocr.IOcrSpellCheckManager.IsSpellCheckEngineSupported(Leadtools.Forms.Ocr.OcrSpellCheckEngine)	Checks if a certain spell checker is supported this OCR engine.
Leadtools.Forms.Ocr.IOcrSpellCheckManager.GetAdditionalSpellLanguages	Gets the additional languages supported by the current spell checker but not installed.
Leadtools.Forms.Ocr.IOcrSpellCheckManager.SpellCheckEngine	Gets or sets the current spell checker.
Leadtools.Forms.Ocr.OcrCharacter.Language1	Gets or sets the first language which the recognized word belongs to.
Leadtools.Forms.Ocr.OcrCharacter.Language2	Gets or sets the second language which the recognized word belongs to.

Removed Types

The following Types have been removed in v17.5:

Types	Description
Leadtools.Forms.Ocr.OcrSpellCheckOpinion	Obsolete functionality removed
Leadtools.Forms.Ocr.OcrSpellCheckCallback	Obsolete functionality removed
Leadtools.Forms.Ocr.OcrUserDictionaryItemStyles	Obsolete functionality removed
Leadtools.Forms.Ocr.IOcrUserDictionary	Obsolete functionality removed
Leadtools.Forms.Ocr.OcrLanguageGroup	Obsolete functionality removed
Leadtools.Forms.Ocr.IOcrUserDictionaryItem	Obsolete functionality removed

Removed Members

The following members have been removed from existing types in v17.5:

Member	Description
Leadtools.Forms.Ocr.IOcrDocumentManager.GetEngineSupportedFormats	Obsolete functionality removed
Leadtools.Forms.Ocr.IOcrSpellCheckManager.SetSpellCheckCallback(Leadtools.Forms.Ocr.OcrSpellCheckCallback)	Obsolete functionality removed
Leadtools.Forms.Ocr.IOcrLanguageManager.GetSupportedLanguageGroups	Obsolete functionality removed
Leadtools.Forms.Ocr.IOcrSpellCheckManager.GetSupportedSpellCheckEngines	Obsolete functionality removed
Leadtools.Forms.Ocr.IOcrLanguageManager.IsLanguageGroupSupported(Leadtools.Forms.Ocr.OcrLanguageGroup)	Obsolete functionality removed
Leadtools.Forms.Ocr.IOcrSpellCheckManager.Enabled	Obsolete functionality removed
Leadtools.Forms.Ocr.IOcrSpellCheckManager.UserDictionary	Obsolete functionality removed

Leadtools.Forms.Ocr Assembly Changes from Version 16.5 to Version 17

Note on LEADTOOLS for .NET v17

In LEADTOOLS for .NET v16.5, some assemblies had a dependency on System.Drawing. System.Drawing is the .NET 2.0 assembly used with the Windows Forms and GDI+ platforms. Since LEADTOOLS v17 treats Windows Forms, Windows Presentation Foundation (WPF) and Silverlight as equal citizens, certain types in this LEADTOOLS assembly has been changed to reflect that. For example, properties with System.Drawing.Point type have been changed to use the new Leadtools.LeadPoint type, methods with a parameter of System.Drawing.Rectangle type have been changed to use the new Leadtools.LeadRect type. The following table shows the old 16.5 and corresponding new v17 types:

Old v16.5 Type	New v17 Type
System.Drawing.Point	Leadtools.LeadPoint
System.Drawing.Size	Leadtools.LeadSize
System.Drawing.Rectangle	Leadtools.LeadRect
System.Drawing.Color	Leadtools.RasterColor
System.Drawing.Drawing2.FillMode	Leadtools.LeadFillMode

These changes are not listed in the topics below.

New Types

The following types have been added in v17:

Type	Description
Leadtools.Forms.Ocr.OcrZoneCell	Information of a cell in a zone of type OcrZoneType.Table.
Leadtools.Forms.Ocr.OcrTablePointInformation	Cell index and the nearest border for a given point.
Leadtools.Forms.Ocr.OcrCellBorderDragLimit	Maximum and minimum movement allowed by a given cell border.
Leadtools.Forms.Ocr.IOcrTableZoneManager	Object used to manipulate cells inside a table zone.
Leadtools.Forms.Ocr.OcrAutoRecognizeManagerJobOperation	Leadtools.Forms.Ocr.IOcrAutoRecognizeManager job operations.
Leadtools.Forms.Ocr.OcrAutoRecognizeManagerJobStatus	Indicates the job status.
Leadtools.Forms.Ocr.OcrAutoRecognizeManagerJobError	Contains information on an Leadtools.Forms.Ocr.IOcrAutoRecognizeManager job error.
Leadtools.Forms.Ocr.OcrAutoRecognizeManagerJobErrorMode	Indicates the value for the Leadtools.Forms.Ocr.IOcrAutoRecognizeManager.JobErrorMode property.
Leadtools.Forms.Ocr.OcrAutoRecognizeJobProgressEventArgs	Contains sata for the IOcrAutoRecognizeManager.JobProgress event.
Leadtools.Forms.Ocr.OcrAutoRecognizeJobData	Defines the data used to create an OCR Auto Recognition job.
Leadtools.Forms.Ocr.IOcrAutoRecognizeJob	Specifies an OCR job that can run and tracked by Leadtools.Forms.Ocr.IOcrAutoRecognizeManager.
Leadtools.Forms.Ocr.OcrCellBorderLineStyle	Indicates the line style of a cell border.
Leadtools.Forms.Ocr.OcrPageType	Indicates the type of the page's Leadtools.RasterImage to get.
Leadtools.Forms.Ocr.OcrCellBorder	Indicates the cell border location

New Members

The following members have been added to existing types in v17:

Member	Description
IOcrDocumentManager.GetFontNames	Gets the font names used in the final document.
IOcrDocumentManager.SetFontNames	Sets the font names used in the final document.
LeadRect IOcrPage.GetZoneBoundsInPixels(int zoneIndex)	Replaces RectangleF IOcrPage.GetZoneBoundsInPixels(int zoneIndex)
IOcrAutoRecognizeManager.MaximumPagesBeforeLtd	Gets or sets a value that indicate the maximum number of pages to process before using LTD as a temporary format.
IOcrAutoRecognizeManager.PreprocessPageCommands	Gets a list of the auto-preprocess commands to perform on each document page prior to recognition.
Leadtools.Forms.Ocr.IOcrAutoRecognizeManager.Run(System.String,System.String,Leadtools.Forms.DocumentWriters.DocumentFormat,System.String,Leadtools.Forms.Ocr.OcrProgressCallback)	Converts an image file on disk to a document file in the specified document format with optional multi-page zone file.
Leadtools.Forms.Ocr.IOcrAutoRecognizeManager.CreateJob(Leadtools.Forms.Ocr.OcrAutoRecognizeJobData)	Creates a new job.
Leadtools.Forms.Ocr.IOcrAutoRecognizeManager.RunJob(Leadtools.Forms.Ocr.IOcrAutoRecognizeJob)	Runs a job.
Leadtools.Forms.Ocr.IOcrAutoRecognizeManager.RunJobAsync(Leadtools.Forms.Ocr.IOcrAutoRecognizeJob)	Runs a job asynchronously.
Leadtools.Forms.Ocr.IOcrAutoRecognizeManager.AbortAllJobs	Aborts all running and pending jobs.
Leadtools.Forms.Ocr.IOcrAutoRecognizeManager.MaximumPagesBeforeLtd	Gets or sets a value that indicate the maximum number of pages to process before using LTD as a temporary format.
Leadtools.Forms.Ocr.IOcrAutoRecognizeManager.PreprocessPageCommands	Gets a list of the auto-preprocess commands to perform on each document page prior to recognition.
Leadtools.Forms.Ocr.IOcrAutoRecognizeManager.EnableTrace	Gets or sets a value that indicates whether this Leadtools.Forms.Ocr.IOcrAutoRecognizeManager should output debug messages to the standard .NET trace listeners.
Leadtools.Forms.Ocr.IOcrAutoRecognizeManager.IsMultiThreadedSupported	Gets a value that indicates whether multi-threading is supported in this Leadtools.Forms.Ocr.IOcrAutoRecognizeManager.
Leadtools.Forms.Ocr.IOcrAutoRecognizeManager.MaximumThreadsPerJob	Gets or sets a value that indicates the maximum number of threads to use when recognizing a document.
Leadtools.Forms.Ocr.IOcrAutoRecognizeManager.JobErrorMode	Gets or sets a value that indicates whether to abort or try to conintue running jobs when an error occur.
Leadtools.Forms.Ocr.IOcrAutoRecognizeManager.JobProgress	Occurs when a job is being run to provide progress status and ability to abort.
Leadtools.Forms.Ocr.IOcrAutoRecognizeManager.JobStarted	Occurs when a job is about to start.
Leadtools.Forms.Ocr.IOcrAutoRecognizeManager.JobCompleted	Occurs when a job is completed or aborted.
Leadtools.Forms.Ocr.OcrZone.Cells	Gets or sets the detected cells of this zone if the zone type is OcrZoneType.Table.
Leadtools.Forms.Ocr.IOcrPage.GetRasterImage(Leadtools.Forms.Ocr.OcrPageType)	Gets the current or processing image data of this page as a raster image.
Leadtools.Forms.Ocr.IOcrPage.IsInverted	Gets a value that indicate whether this Leadtools.Forms.Ocr.IOcrPage is inverted.
Leadtools.Forms.Ocr.IOcrPage.LoadZones(System.String,System.Int32)	Load zones from a multi-page zones disk file.
Leadtools.Forms.Ocr.IOcrPage.LoadZones(System.IO.Stream,System.Int32)	Load zones from a multi-page zones .NET stream.
Leadtools.Forms.Ocr.IOcrPage.TableZoneManager	Gets the table zone manager associated with the zones of this page.
Leadtools.Forms.Ocr.IOcrDocument.LoadZones(System.String)	Load zones from a single-page zones disk file.
Leadtools.Forms.Ocr.IOcrDocument.LoadZones(System.IO.Stream)	Load zones from a single-page zones .NET stream.
Leadtools.Forms.Ocr.IOcrDocument.SaveZones(System.String)	Saves the zones of this Leadtools.Forms.Ocr.IOcrPage to a single-page zones disk file.
Leadtools.Forms.Ocr.IOcrDocument.SaveZones(System.IO.Stream)	Saves the zones of this Leadtools.Forms.Ocr.IOcrPage to a single-page zones .NET stream.
Leadtools.Forms.Ocr.IOcrDocument.UseEngineInstanceOptions	Gets or sets a value indicating whether this Leadtools.Forms.Ocr.IOcrDocument must copy the Leadtools.Codecs.RasterCodecs and Leadtools.Forms.DocumentWriters.DocumentWriter options from the Leadtools.Forms.Ocr.IOcrEngine before using them.
Leadtools.Forms.Ocr.IOcrDocument.RasterCodecsInstance	Gets the instance of the Leadtools.Codecs.RasterCodecs object being used inside this Leadtools.Forms.Ocr.IOcrDocument.
Leadtools.Forms.Ocr.IOcrDocument.DocumentWriterInstance	Gets the instance of the Leadtools.Forms.DocumentWriters.DocumentWriter object being used inside this Leadtools.Forms.Ocr.IOcrEngine.

Removed Types

The following types have been removed from v17:

Type	Description
OcrDocumentFormat	Deprecated type removed.

Removed Members

The following members have been removed from v17:

Member	Description
OcrDocumentFormat[] IOcrDocumentManager.GetSupportedFormats()	Deprecated member removed.
bool IOcrDocumentManager.IsFormatSupported(OcrDocumentFormat format)	Deprecated member removed.
String IOcrDocumentManager.GetFormatFileExtension(OcrDocumentFormat format)	Deprecated member removed.
String IOcrDocumentManager.GetFormatFriendlyName(OcrDocumentFormat format)	Deprecated member removed.
void IOcrEngine.Startup(RasterCodecs rasterCodecs, String workDirectory, String startupParameters)	Deprecated member removed.
void IOcrAutoRecognizeManager.Run(String imageFileName, String documentFileName, IList<String> zoneFileNames, OcrDocumentFormat documentFormat, OcrProgressCallback callback)	Deprecated member removed.
void IOcrDocument.Save(Stream stream, OcrDocumentFormat format, OcrProgressCallback callback)	Deprecated member removed.
void IOcrDocument.Save(String fileName, OcrDocumentFormat format, OcrProgressCallback callback)	Deprecated member removed.

Leadtools.Forms.Ocr Assembly Changes from Version 16 to Version 16.5

New Types

The following types have been added in v16.5:

Type	Description
Leadtools.Forms.Ocr.IOcrAutoRecognizeManager.Run	Converts an image file on disk to a document file in the specified document format.
Leadtools.Forms.Ocr.IOcrZoneManager.OmrOptions	Gets the OMR settings currently being used by the engine.
Leadtools.Forms.Ocr.IOcrEngine.EngineType	Gets the type of this IOcrEngine.
Leadtools.Forms.Ocr.IOcrEngine.Startup	Starts the OCR engine.
Leadtools.Forms.Ocr.IOcrEngine.DocumentWriterInstance	Gets the instance of the DocumentWriters object being used inside this Leadtools.Forms.Ocr.IOcrEngine.
Leadtools.Forms.Ocr.IOcrOmrOptions	The OMR settings currently used in the engine.
Leadtools.Forms.Ocr.IOcrOmrOptions.GetStateRecognitionCharacter	Gets the character used to represent an OMR state in the output document.
Leadtools.Forms.Ocr.IOcrOmrOptions.GetStateRecognitionCharacter	Sets the character used to represent an OMR state in the output document.
Leadtools.Forms.Ocr.IOcrOmrOptions.FrameDetectionMethod	Gets or sets the OMR frame detection mode.
Leadtools.Forms.Ocr.IOcrOmrOptions.Sensitivity	Gets or sets the OMR sensitivity mode.
Leadtools.Forms.Ocr.IOcrDocumentManager.GetEngineSupportedFormats	Gets a list of the engine native formats supported by this IOcrEngine".
Leadtools.Forms.Ocr.IOcrDocumentManager.IsEngineFormatSupported	Gets a value indicating whether the specified engine native format is supported by this IOcrEngine.
Leadtools.Forms.Ocr.IOcrDocumentManager.GetEngineFormatFileExtension	Gets the default file extension for the specified engine native format.
Leadtools.Forms.Ocr.IOcrDocumentManager.GetEngineFormatFriendlyName	Gets the friendly name of the specified engine native format. For example, Adobe PDF files will return something similar to "Adobe PDF" and Microsoft Word documents will return "Microsoft Word" and so forth.
Leadtools.Forms.Ocr.IOcrDocumentManager.EngineFormat	Gets or sets the name of the engine native format to use when saving OCR documents.
Leadtools.Forms.Ocr.OcrOmrSensitivity	The OMR sensitivity mode.
Leadtools.Forms.Ocr.IOcrDocument.Save(string, DocumentFormat, OcrProgressCallback)	Converts the cumulated recognition result stored in the pages of this OCR document to the final output document and store it a disk file.
Leadtools.Forms.Ocr.IOcrDocument.Save(Stream, DocumentFormat, OcrProgressCallback)	Converts the cumulated recognition result stored in the pages of this OCR document to the final output document and store it in a .NET stream.
Leadtools.Forms.Ocr.IOcrDocument.SaveXml(string, OcrXmlOutputOptions)	Converts the cumulated recognition result stored in the pages of this OCR document to XML data and store it in a disk file.
Leadtools.Forms.Ocr.IOcrDocument.SaveXml(Stream, OcrXmlOutputOptions)	Converts the cumulated recognition result stored in the pages of this OCR document to XML data and store it in a .NET stream.
Leadtools.Forms.Ocr.IOcrDocument.SaveXml(OcrXmlOutputOptions)	Converts the cumulated recognition result stored in the pages of this OCR document and return it as XML data.
Leadtools.Forms.Ocr.IOcrLanguageManager.SupportsEnablingMultipleLanguages	Gets a value to indicate whether this engine supports enabling multiple languages at the same time.

New Enumerations

The following enumerations have been added to existing types in v16.5:

Type	Description
Leadtools.Forms.Ocr.OcrDocumentFormat.PdfAText	Adobe PDF/A format with text only. Optimized for the long-term archiving of electronic documents and is based on the PDF Reference Version 1.4 from Adobe Systems Inc. (implemented in Adobe Acrobat 5)
Leadtools.Forms.Ocr.OcrProgressOperation.RecognizeOmr	OCR progress callback operation identification.
Leadtools.Forms.Ocr.OcrZoneType.VerticalText	Vertical characters (Asian) type zone.
Leadtools.Forms.Ocr.OcrZoneType.LeftRotatedText	Left rotated text (90 degrees counter clockwise). For Latin, Greek and Cyrillic characters only.
Leadtools.Forms.Ocr.OcrZoneType.RightRotatedText	Right rotated text (90 degrees counter clockwise). For Latin, Greek and Cyrillic characters only.
Leadtools.Forms.Ocr.OcrSupportLockedExceptionType.OcrProfessionalAsian	Ocr Professional Asian support is required to use this feature.
Leadtools.Forms.Ocr.OcrZoneRecognitionModule.Asian	Asian characters recognition module.
Leadtools.Forms.Ocr.OcrSupportLockedExceptionType.Arabic	Ocr Arabic support is required to use this feature.
Leadtools.Forms.Ocr.OcrSupportLockedExceptionType.EnginePdf	PDF support is required to use this feature (When saving a document using the engine native support, refer to IOcrDocumentManager.EngineFormat).
Leadtools.Forms.Ocr.OcrEngineType.Arabic	Specifies the LEADTOOLS OCR Arabic engine. Internally, the OCR library inside Leadtools.Forms.Ocr.Arabic.dll is used.
Leadtools.Forms.Ocr.OcrOmrZoneState	The zone OMR recognition state.
Leadtools.Forms.Ocr.OcrOmrSensitivity	The OMR sensitivity mode.
Leadtools.Forms.Ocr.OcrOmrFrameDetectionMethod	The OMR frame detection mode.
Leadtools.Forms.Ocr.OcrZoneFillMethod.Asian	Possible content types of the zones.
Leadtools.Forms.Ocr.OcrOmrZoneState	The zone OMR recognition state.
Leadtools.Forms.Ocr.OcrLanguageGroup.Asian	Asian group - Contains the following languages: Chinese Traditional, Chinese Simplified, Japanese and Korean.

New Structures

The following structures have been added in v16.5:

Type	Description
Leadtools.Forms.Ocr.OcrCharacter	Contains recognized character data
Leadtools.Forms.Ocr.OcrZone.OmrState	Gets or sets the after-recognition state of the OMR mark if this is an OMR zone.
Leadtools.Forms.Ocr.OcrZone.OmrConfidence	Gets or sets the after-recognition state of the OMR mark if this is an OMR zone.
Leadtools.Forms.Ocr.OcrCharacter.Color	Gets or sets the character color.

Deprecated Types

The following types have been removed in v16.5:

Type	Description
Leadtools.Forms.Ocr.OcrDocumentFormat.PdfAText	Adobe PDF/A format with text only. Optimized for the long-term archiving of electronic documents and is based on the PDF Reference Version 1.4 from Adobe Systems Inc. (implemented in Adobe Acrobat 5)
Run(string, string, Generic IList, OcrDocumentFormat, OcrProgressCallback) Method	Converts an image file on disk to a document file in the specified document format. Use Run(string, string, Generic IList, DocumentFormat, OcrProgressCallback) Method instead.

Leadtools.Forms.Ocr Assembly Changes from Version 15 to Version 16

New Features

With Version 16 the Leadtools.Document namespace has been deprecated and replaced by the new Leadtools.Forms.Ocr. It represents a new design, featuring:

High-level design
Increased ease of use
Choice of multiple OCR Engines

In addition, OCR output can be saved as PDF/A.

New Assembly

The following assembly has been added to LEADTOOLS For .NET v16:

Namespace	Description
Leadtools.Forms.Ocr	Includes interfaces, classes, structures, enumerations and delegates to quickly and easily add document optical character recognition (OCR) technology into software applications.