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Changes from Version 15 to Version 16

Version 16 of the LEADTOOLS OCR C DLL has changed from version 15 as follows:

• LEAD'S robust OCR design now supports multiple OCR engines, giving you a choice of LEADTOOLS OCR Modules:

• LEADTOOLS OCR Module - Professional: This new engine provides the fastest and most accurate automatic and manual zone detection, Unicode support, formatted output, auto-orientation, custom spelling dictionaries and MICR support. PDF and PDF/A output, ICR and OMR support is available.

• The document handle for new engine is L_HDOC2.

• The path for the new engine is available from the OCRPathProfessional16 key: HKEY_LOCAL_MACHINE\Software\LEAD Technologies, Inc.\OCRPathProfessional16.

• The function naming convention for OCR Professional is L_Doc2xxx.

• The demo naming convention for OCR Professional is Ocr2xxx.

• LEADTOOLS OCR Module - Plus: our existing engine includes automatic and manual zone detection, formatted output, auto-orientation, custom spelling dictionaries and MICR support. PDF and PDF/A output, ICR and OMR support is also available.

• The document handle for the existing engine remains L_HDOC.

• The path for the previous engine is from the OCRPathPlus16 key: HKEY_LOCAL_MACHINE\Software\LEAD Technologies, Inc.\OCRPathPlus16.

• Both engines can be installed on the same machine.

• Continue to use existing code, with no code changes required.

• At the same time, upgrade to the new engine for fastest possible performance on new or existing applications.

• Both engines will run independently, with no conflict.

• The following functions, structures, and enumerations are available only with OCR Plus. They do not have counterparts in OCR Professional:

L_DocSaveResultsToMemory

L_DocIsCharEnabled

L_DocIsParallelRecognitionEnabled

L_DocEnableParallelRecognition

DOCUMENTOPTIONS

PARAGRAPHOPTIONS

CHARACTEROPTIONS

MARKOPTIONS

FONTDEFINE

SELECTOR

LINESPACING

ALIGNMENT

PAPERTYPE

PAPERORIENTATION

LANGUAGE_RESULT

COLOR_RESULT

TABLEMETHOD

New Functions:

L_Doc2AddItemToUserDictionary

L_Doc2AddPage

L_Doc2AddZone

L_Doc2AddZoneRect

L_Doc2AutoOrientPage

L_Doc2CleanupPages

L_Doc2CreateSettingsCollection

L_Doc2DeleteSettingsCollection

L_Doc2DetectOrientationDegree

L_Doc2DrawPage

L_Doc2EnumOutputFileFormats

L_Doc2ExcludeZoneRect

L_Doc2ExportPage

L_Doc2ExportZones

L_Doc2FindDefaultFillMethod

L_Doc2FindZones

L_Doc2FreeLanguages

L_Doc2FreeRecognizedCharacters

L_Doc2FreeRecognizedWords

L_Doc2GetCharLangsOptions

L_Doc2GetDefaultSpellLanguages

L_Doc2GetFillMethod

L_Doc2GetHandPrintOptions

L_Doc2GetMOROptions

L_Doc2GetOcrZoneCount

L_Doc2GetOMROptions

L_Doc2GetOutputFormatSettings

L_Doc2GetPageCount

L_Doc2GetPageInfo

L_Doc2GetPaintZoomFactor

L_Doc2GetRecognitionResultOptions

L_Doc2GetRecognizedCharactersColors

L_Doc2GetRecognizedCharacters

L_Doc2GetRecognizedWords

L_Doc2GetRecognizeModuleTradeOff

L_Doc2GetSelectedLanguages

L_Doc2GetSelectedZone

L_Doc2GetSpecialChar

L_Doc2GetStatus

L_Doc2GetTextFormatInfo

L_Doc2GetUserDictionary

L_Doc2GetUserDictionarySectionItem

L_Doc2GetUserDictionarySection

L_Doc2GetUserDictionaryState

L_Doc2GetUserZoneCount

L_Doc2GetZoneColor

L_Doc2GetZoneCount

L_Doc2GetZone

L_Doc2GetZoneLayout

L_Doc2GetZoneNodes

L_Doc2GetZoneOptions

L_Doc2ImportZones

L_Doc2LoadSettings

L_Doc2LockPage

L_Doc2OffsetZones

L_Doc2Recognize

L_Doc2RemoveItemFromUserDictionary

L_Doc2RemovePage

L_Doc2RemoveSelectedZone

L_Doc2RemoveZone

L_Doc2SaveResultsToFile

L_Doc2SaveSettings

L_Doc2SelectLanguages

L_Doc2SelectZoneByPoint

L_Doc2SelectZone

L_Doc2SetActivePage

L_Doc2SetActiveSettingsCollection

L_Doc2SetCharLangsOptions

L_Doc2SetFillMethod

L_Doc2SetHandPrintOptions

L_Doc2SetMOROptions

L_Doc2SetOMROptions

L_Doc2SetOutputFormatSettings

L_Doc2SetPaintZoomFactor

L_Doc2SetProgressCB

L_Doc2SetRecognitionResultOptions

L_Doc2SetRecognizedCharacters

L_Doc2SetRecognizeModuleTradeOff

L_Doc2SetSelectedZonePen

L_Doc2SetSpecialChar

L_Doc2SetUserDictionary

L_Doc2SetZoneLayout

L_Doc2SetZoneOptions

L_Doc2SetZonePen

L_Doc2ShutDown

L_Doc2StartUp

L_Doc2UnlockPage

L_Doc2UpdatePage

L_Doc2UpdateZone

L_Doc2Zone

New Enumerations

ENUMOUTPUTFILEFORMATS2

New Callbacks

PROGRESSCALLBACK2

RECOGNIZESTATUSCALLBACK2

VERIFICATIONCALLBACK2

For more information, refer to:

http://www.leadtools.com/Home2/press/16press.htm