PDFlib Text Extraction Toolkit (TET) Manual

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3.3 C++ Binding In addition to the tetlib.h C header file, an object-oriented wrapper for C++ is supplied for TET clients. It requires the tet.hpp header file, which in turn includes tetlib.h. The corresponding tet.cpp module must be linked against the application in addition to the generic TET C library. Using the C++ object wrapper replaces the functional approach with API functions and TET_ prefixes in all TET function names with a more object-oriented approach: a TET object offers methods, but the method names no longer have the TET_ prefix. The TET C++ binding will package Unicode text in standard C++ strings in UTF-16 format. Clients must be prepared to process such strings appropriately. 24 Chapter 3: TET Library Language Bindings
3.4 COM Binding Installing the TET COM edition. TET can be deployed in all environments that support COM components. Installing TET is an easy and straight-forward process. Please note the following: > If you install on an NTFS partition all TET users must have read permission for the installation directory, and execute permission for ...\TET 3.0\bind\COM\bin\tet_com.dll. > The installer must have write permission for the system registry. Administrator or Power Users group privileges will usually be sufficient. Exception Handling. Exception handling for the TET COM component is done according to COM conventions: when a TET exception occurs, a COM exception will be raised and furnished with a clear-text description of the error. In addition the memory allocated by the TET object is released. The COM exception can be caught and handled in the TET client in whichever way the client environment supports for handling COM errors. Using the TET COM Edition with .NET. As an alternative to the TET.NET edition (see Section 3.6, ».NET Binding«, page 27) the COM edition of TET can also be used with .NET. First, you must create a .NET assembly from the TET COM edition using the tlbimp.exe utility: tlbimp tet_com.dll /namespace:tet_com /out:Interop.tet_com.dll You can use this assembly within your .NET application. If you add a reference to tet_ com.dll from within Visual Studio .NET an assembly will be created automatically. The following code fragment shows how to use the TET COM edition with C#: using TET_com; ... static TET_com.ITET tet; ... tet = New TET(); ... All other code works as with the .NET edition of TET. 3.4 COM Binding 25
Page 1 and 2: PDFlib GmbH München, Germany www.p
Page 3 and 4: Contents 0 First Steps with TET 7 0
Page 5: 10.9 Option Handling 151 10.10 pCOS
Page 8 and 9: 0.2 Applying the TET License Key Us
Page 11 and 12: 1 Introduction The PDFlib Text Extr
Page 13 and 14: may extract some text which is not
Page 15 and 16: 2 TET Command-Line Tool 2.1 Command
Page 17 and 18: Constructing TET command lines. The
Page 19 and 20: Extract images and generate TETML i
Page 21 and 22: 3 TET Library Language Bindings Thi
Page 23: TET_CATCH(tet) { printf("Error %d i
Page 27 and 28: 3.6 .NET Binding The .NET edition o
Page 29 and 30: 3.8 PHP Binding Installing the TET
Page 31 and 32: 3.9 Python Binding Installing the T
Page 33 and 34: Exception Handling in RPG. TET clie
Page 35 and 36: 4 TET Connectors TET connectors pro
Page 37 and 38: 4.2 TET Connector for the Lucene Se
Page 39 and 40: Indexing metadata fields. The TET c
Page 41 and 42: 4.4 TET Connector for Oracle The TE
Page 43 and 44: these options on the command line.
Page 45 and 46: TET PDF IFilter is freely available
Page 47 and 48: tracts text and metadata from the P
Page 49 and 50: 5 Configuration 5.1 Indexing protec
Page 51 and 52: 5.2 Resource Configuration and File
Page 53 and 54: tet/3.0/resource /tet/3.0/resource/
Page 55 and 56: Geometry. The geometry features may
Page 57 and 58: 6 Text Extraction 6.1 Document Doma
Page 59 and 60: How to search with Acrobat 8/9: not
Page 61 and 62: 6.2 Unicode Concepts Unicode encodi
Page 63 and 64: artificial characters which will be
Page 65 and 66: width (x, y) beta fontsize baseline
Page 67 and 68: 6.4 Support for Chinese, Japanese,
Page 69 and 70: Options for text filtering. There a
Page 71 and 72: 6.6 Content Analysis PDF documents
Page 73 and 74: Dehyphenation. Hyphenated words at
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Table 6.3 Document styles docstyle=
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Fig. 6.5 Sample font reports create
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glyphmapping {{fontname=Warnock* to
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7 Image Extraction 7.1 Image Extrac
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7.2 Image Geometry Using TET_get_im
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7.3 Image Analysis Image merging. S
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7.4 Restrictions and Caveats Image
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8 TET Markup Language (TETML) 8.1 C
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Depending on the sele
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You can specify the amount of text
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Table 8.3 TETML elements TETML elem
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8.4 Transforming TETML with XSLT Ve
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Run the program as follows: nxslt3.
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8.5 XSLT Samples The TET distributi
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Alphabetical list of words in the d
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9 The pCOS Interface The pCOS (PDFl
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9.2 Handling Basic PDF Data Types p
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9.3 Composite Data Structures and I
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Path prefixes. Prefixes can be used
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Table 9.3 Universal pseudo objects
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Table 9.4 Pseudo objects for PDF ob
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Table 9.5 Pseudo objects for resour
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9.6 Encrypted PDF Documents pCOS su
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10 TET Library API Reference 10.1 O
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10.2 General Functions Perl PHP res
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Returns Scope Bindings The converte
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10.3 Exception Handling C++ string
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10.4 Document Functions C++ int ope
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Table 10.3 Document options for TET
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C++ C int open_document_callback(vo
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Table 10.5 Page options for TET_ope
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Table 10.6 Suboptions for the conte
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Table 10.7 Suboptions for the layou
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Table 10.9 Suboptions for the struc
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C++ const TET_char_info *get_char_i
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10.7 Image Retrieval Functions C++
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C++ int write_image_file(int doc, i
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10.8 TET Markup Language (TETML) Fu
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10.9 Option Handling C++ void set_o
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10.10 pCOS Functions The full pCOS
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If the object has type stream all f
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A TET Library Quick Reference The f
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B Revision History Revision history
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unsupported types 87 XMP metadata 8
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