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<!doctype html> <html lang="en" class="no-js"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,initial-scale=1"> <meta http-equiv="x-ua-compatible" content="ie=edge"> <meta name="description" content="API Reference Documentation for FreeType-2.10.4"> <meta name="author" content="FreeType Contributors"> <meta name="lang:clipboard.copy" content="Copy to clipboard"> <meta name="lang:clipboard.copied" content="Copied to clipboard"> <meta name="lang:search.language" content="en"> <meta name="lang:search.pipeline.stopwords" content="True"> <meta name="lang:search.pipeline.trimmer" content="True"> <meta name="lang:search.result.none" content="No matching documents"> <meta name="lang:search.result.one" content="1 matching document"> <meta name="lang:search.result.other" content="# matching documents"> <meta name="lang:search.tokenizer" content="[\s\-]+"> <link rel="shortcut icon" href="images/favico.ico"> <meta name="generator" content="mkdocs-1.1, 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class="md-header-nav__topic"> FreeType-2.10.4 API Reference </span> <span class="md-header-nav__topic"> Basic Data Types </span> </div> </div> <div class="md-flex__cell md-flex__cell--shrink"> <label class="md-icon md-icon--search md-header-nav__button" for="__search"></label> <div class="md-search" data-md-component="search" role="dialog"> <label class="md-search__overlay" for="__search"></label> <div class="md-search__inner" role="search"> <form class="md-search__form" name="search"> <input type="text" class="md-search__input" aria-label="search" name="query" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="query" data-md-state="active"> <label class="md-icon md-search__icon" for="__search"></label> <button type="reset" class="md-icon md-search__icon" data-md-component="reset" tabindex="-1"> </button> </form> <div class="md-search__output"> <div class="md-search__scrollwrap" data-md-scrollfix> <div class="md-search-result" data-md-component="result"> <div class="md-search-result__meta"> Type to start searching </div> <ol class="md-search-result__list"></ol> </div> </div> </div> </div> </div> </div> </div> </nav> </header> <div class="md-container"> <main class="md-main" role="main"> <div class="md-main__inner md-grid" data-md-component="container"> <div class="md-sidebar md-sidebar--primary" data-md-component="navigation"> <div class="md-sidebar__scrollwrap"> <div class="md-sidebar__inner"> <nav class="md-nav md-nav--primary" data-md-level="0"> <label class="md-nav__title md-nav__title--site" for="__drawer"> <a href="." title="FreeType-2.10.4 API Reference" class="md-nav__button md-logo"> <img alt="logo" src="images/favico.ico" width="48" height="48"> </a> FreeType-2.10.4 API Reference </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="index.html" title="TOC" class="md-nav__link"> TOC </a> </li> <li class="md-nav__item"> <a href="ft2-index.html" title="Index" class="md-nav__link"> Index </a> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-toggle md-nav__toggle" data-md-toggle="nav-3" type="checkbox" id="nav-3"> <label class="md-nav__link" for="nav-3"> General Remarks </label> <nav class="md-nav" data-md-component="collapsible" data-md-level="1"> <label class="md-nav__title" for="nav-3"> General Remarks </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="ft2-header_inclusion.html" title="FreeType's header inclusion scheme" class="md-nav__link"> FreeType's header inclusion scheme </a> </li> <li class="md-nav__item"> <a href="ft2-user_allocation.html" title="User allocation" class="md-nav__link"> User allocation </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--active md-nav__item--nested"> <input class="md-toggle md-nav__toggle" data-md-toggle="nav-4" type="checkbox" id="nav-4" checked> <label class="md-nav__link" for="nav-4"> Core API </label> <nav class="md-nav" data-md-component="collapsible" data-md-level="1"> <label class="md-nav__title" for="nav-4"> Core API </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="ft2-version.html" title="FreeType Version" class="md-nav__link"> FreeType Version </a> </li> <li class="md-nav__item md-nav__item--active"> <input class="md-toggle md-nav__toggle" data-md-toggle="toc" type="checkbox" id="__toc"> <label class="md-nav__link md-nav__link--active" for="__toc"> Basic Data Types </label> <a href="ft2-basic_types.html" title="Basic Data Types" class="md-nav__link md-nav__link--active"> Basic Data Types </a> <nav class="md-nav md-nav--secondary"> <label class="md-nav__title" for="__toc">Table of contents</label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="#synopsis" class="md-nav__link"> Synopsis </a> </li> <li class="md-nav__item"> <a href="#ft_byte" class="md-nav__link"> FT_Byte </a> </li> <li class="md-nav__item"> <a href="#ft_bytes" class="md-nav__link"> FT_Bytes </a> </li> <li class="md-nav__item"> <a href="#ft_char" class="md-nav__link"> FT_Char </a> </li> <li class="md-nav__item"> <a href="#ft_int" class="md-nav__link"> FT_Int </a> </li> <li class="md-nav__item"> <a href="#ft_uint" class="md-nav__link"> FT_UInt </a> </li> <li class="md-nav__item"> <a href="#ft_int16" class="md-nav__link"> FT_Int16 </a> </li> <li class="md-nav__item"> <a href="#ft_uint16" class="md-nav__link"> FT_UInt16 </a> </li> <li class="md-nav__item"> <a href="#ft_int32" class="md-nav__link"> FT_Int32 </a> </li> <li class="md-nav__item"> <a href="#ft_uint32" class="md-nav__link"> FT_UInt32 </a> </li> <li class="md-nav__item"> <a href="#ft_int64" class="md-nav__link"> FT_Int64 </a> </li> <li class="md-nav__item"> <a href="#ft_uint64" class="md-nav__link"> FT_UInt64 </a> </li> <li class="md-nav__item"> <a href="#ft_short" class="md-nav__link"> FT_Short </a> </li> <li class="md-nav__item"> <a href="#ft_ushort" class="md-nav__link"> FT_UShort </a> </li> <li class="md-nav__item"> <a href="#ft_long" class="md-nav__link"> FT_Long </a> </li> <li class="md-nav__item"> <a href="#ft_ulong" class="md-nav__link"> FT_ULong </a> </li> <li class="md-nav__item"> <a href="#ft_bool" class="md-nav__link"> FT_Bool </a> </li> <li class="md-nav__item"> <a href="#ft_offset" class="md-nav__link"> FT_Offset </a> </li> <li class="md-nav__item"> <a href="#ft_ptrdist" class="md-nav__link"> FT_PtrDist </a> </li> <li class="md-nav__item"> <a href="#ft_string" class="md-nav__link"> FT_String </a> </li> <li class="md-nav__item"> <a href="#ft_tag" class="md-nav__link"> FT_Tag </a> </li> <li class="md-nav__item"> <a href="#ft_error" class="md-nav__link"> FT_Error </a> </li> <li class="md-nav__item"> <a href="#ft_fixed" class="md-nav__link"> FT_Fixed </a> </li> <li class="md-nav__item"> <a href="#ft_pointer" class="md-nav__link"> FT_Pointer </a> </li> <li class="md-nav__item"> <a href="#ft_pos" class="md-nav__link"> FT_Pos </a> </li> <li class="md-nav__item"> <a href="#ft_vector" class="md-nav__link"> FT_Vector </a> </li> <li class="md-nav__item"> <a href="#ft_bbox" class="md-nav__link"> FT_BBox </a> </li> <li class="md-nav__item"> <a href="#ft_matrix" class="md-nav__link"> FT_Matrix </a> </li> <li class="md-nav__item"> <a href="#ft_fword" class="md-nav__link"> FT_FWord </a> </li> <li class="md-nav__item"> <a href="#ft_ufword" class="md-nav__link"> FT_UFWord </a> </li> <li class="md-nav__item"> <a href="#ft_f2dot14" class="md-nav__link"> FT_F2Dot14 </a> </li> <li class="md-nav__item"> <a href="#ft_unitvector" class="md-nav__link"> FT_UnitVector </a> </li> <li class="md-nav__item"> <a href="#ft_f26dot6" class="md-nav__link"> FT_F26Dot6 </a> </li> <li class="md-nav__item"> <a href="#ft_data" class="md-nav__link"> FT_Data </a> </li> <li class="md-nav__item"> <a href="#ft_make_tag" class="md-nav__link"> FT_MAKE_TAG </a> </li> <li class="md-nav__item"> <a href="#ft_generic" class="md-nav__link"> FT_Generic </a> </li> <li class="md-nav__item"> <a href="#ft_generic_finalizer" class="md-nav__link"> FT_Generic_Finalizer </a> </li> <li class="md-nav__item"> <a href="#ft_bitmap" class="md-nav__link"> FT_Bitmap </a> </li> <li class="md-nav__item"> <a href="#ft_pixel_mode" class="md-nav__link"> FT_Pixel_Mode </a> </li> <li class="md-nav__item"> <a href="#ft_glyph_format" class="md-nav__link"> FT_Glyph_Format </a> </li> <li class="md-nav__item"> <a href="#ft_image_tag" class="md-nav__link"> FT_IMAGE_TAG </a> </li> </ul> </nav> </li> <li class="md-nav__item"> <a href="ft2-base_interface.html" title="Base Interface" class="md-nav__link"> Base Interface </a> </li> <li class="md-nav__item"> <a href="ft2-glyph_variants.html" title="Unicode Variation Sequences" class="md-nav__link"> Unicode Variation Sequences </a> </li> <li class="md-nav__item"> <a href="ft2-color_management.html" title="Glyph Color Management" class="md-nav__link"> Glyph Color Management </a> </li> <li class="md-nav__item"> <a href="ft2-layer_management.html" title="Glyph Layer Management" class="md-nav__link"> Glyph Layer Management </a> </li> <li class="md-nav__item"> <a href="ft2-glyph_management.html" title="Glyph Management" class="md-nav__link"> Glyph Management </a> </li> <li class="md-nav__item"> <a href="ft2-mac_specific.html" title="Mac Specific Interface" class="md-nav__link"> Mac Specific Interface </a> </li> <li class="md-nav__item"> <a href="ft2-sizes_management.html" title="Size Management" class="md-nav__link"> Size Management </a> </li> <li class="md-nav__item"> <a href="ft2-header_file_macros.html" title="Header File Macros" class="md-nav__link"> Header File Macros </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-toggle md-nav__toggle" data-md-toggle="nav-5" type="checkbox" id="nav-5"> <label class="md-nav__link" for="nav-5"> Format-Specific API </label> <nav class="md-nav" data-md-component="collapsible" data-md-level="1"> <label class="md-nav__title" for="nav-5"> Format-Specific API </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="ft2-multiple_masters.html" title="Multiple Masters" class="md-nav__link"> Multiple Masters </a> </li> <li class="md-nav__item"> <a href="ft2-truetype_tables.html" title="TrueType Tables" class="md-nav__link"> TrueType Tables </a> </li> <li class="md-nav__item"> <a href="ft2-type1_tables.html" title="Type 1 Tables" class="md-nav__link"> Type 1 Tables </a> </li> <li class="md-nav__item"> <a href="ft2-sfnt_names.html" title="SFNT Names" class="md-nav__link"> SFNT Names </a> </li> <li class="md-nav__item"> <a href="ft2-bdf_fonts.html" title="BDF and PCF Files" class="md-nav__link"> BDF and PCF Files </a> </li> <li class="md-nav__item"> <a href="ft2-cid_fonts.html" title="CID Fonts" class="md-nav__link"> CID Fonts </a> </li> <li class="md-nav__item"> <a href="ft2-pfr_fonts.html" title="PFR Fonts" class="md-nav__link"> PFR Fonts </a> </li> <li class="md-nav__item"> <a href="ft2-winfnt_fonts.html" title="Window FNT Files" class="md-nav__link"> Window FNT Files </a> </li> <li class="md-nav__item"> <a href="ft2-font_formats.html" title="Font Formats" class="md-nav__link"> Font Formats </a> </li> <li class="md-nav__item"> <a href="ft2-gasp_table.html" title="Gasp Table" class="md-nav__link"> Gasp Table </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-toggle md-nav__toggle" data-md-toggle="nav-6" type="checkbox" id="nav-6"> <label class="md-nav__link" for="nav-6"> Controlling FreeType Modules </label> <nav class="md-nav" data-md-component="collapsible" data-md-level="1"> <label class="md-nav__title" for="nav-6"> Controlling FreeType Modules </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="ft2-auto_hinter.html" title="The auto-hinter" class="md-nav__link"> The auto-hinter </a> </li> <li class="md-nav__item"> <a href="ft2-cff_driver.html" title="The CFF driver" class="md-nav__link"> The CFF driver </a> </li> <li class="md-nav__item"> <a href="ft2-t1_cid_driver.html" title="The Type 1 and CID drivers" class="md-nav__link"> The Type 1 and CID drivers </a> </li> <li class="md-nav__item"> <a href="ft2-tt_driver.html" title="The TrueType driver" class="md-nav__link"> The TrueType driver </a> </li> <li class="md-nav__item"> <a href="ft2-pcf_driver.html" title="The PCF driver" class="md-nav__link"> The PCF driver </a> </li> <li class="md-nav__item"> <a href="ft2-properties.html" title="Driver properties" class="md-nav__link"> Driver properties </a> </li> <li class="md-nav__item"> <a href="ft2-parameter_tags.html" title="Parameter Tags" class="md-nav__link"> Parameter Tags </a> </li> <li class="md-nav__item"> <a href="ft2-lcd_rendering.html" title="Subpixel Rendering" class="md-nav__link"> Subpixel Rendering </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-toggle md-nav__toggle" data-md-toggle="nav-7" type="checkbox" id="nav-7"> <label class="md-nav__link" for="nav-7"> Cache Sub-System </label> <nav class="md-nav" data-md-component="collapsible" data-md-level="1"> <label class="md-nav__title" for="nav-7"> Cache Sub-System </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="ft2-cache_subsystem.html" title="Cache Sub-System" class="md-nav__link"> Cache Sub-System </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-toggle md-nav__toggle" data-md-toggle="nav-8" type="checkbox" id="nav-8"> <label class="md-nav__link" for="nav-8"> Support API </label> <nav class="md-nav" data-md-component="collapsible" data-md-level="1"> <label class="md-nav__title" for="nav-8"> Support API </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="ft2-computations.html" title="Computations" class="md-nav__link"> Computations </a> </li> <li class="md-nav__item"> <a href="ft2-list_processing.html" title="List Processing" class="md-nav__link"> List Processing </a> </li> <li class="md-nav__item"> <a href="ft2-outline_processing.html" title="Outline Processing" class="md-nav__link"> Outline Processing </a> </li> <li class="md-nav__item"> <a href="ft2-quick_advance.html" title="Quick retrieval of advance values" class="md-nav__link"> Quick retrieval of advance values </a> </li> <li class="md-nav__item"> <a href="ft2-bitmap_handling.html" title="Bitmap Handling" class="md-nav__link"> Bitmap Handling </a> </li> <li class="md-nav__item"> <a href="ft2-raster.html" title="Scanline Converter" class="md-nav__link"> Scanline Converter </a> </li> <li class="md-nav__item"> <a href="ft2-glyph_stroker.html" title="Glyph Stroker" class="md-nav__link"> Glyph Stroker </a> </li> <li class="md-nav__item"> <a href="ft2-system_interface.html" title="System Interface" class="md-nav__link"> System Interface </a> </li> <li class="md-nav__item"> <a href="ft2-module_management.html" title="Module Management" class="md-nav__link"> Module Management </a> </li> <li class="md-nav__item"> <a href="ft2-gzip.html" title="GZIP Streams" class="md-nav__link"> GZIP Streams </a> </li> <li class="md-nav__item"> <a href="ft2-lzw.html" title="LZW Streams" class="md-nav__link"> LZW Streams </a> </li> <li class="md-nav__item"> <a href="ft2-bzip2.html" title="BZIP2 Streams" class="md-nav__link"> BZIP2 Streams </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-toggle md-nav__toggle" data-md-toggle="nav-9" type="checkbox" id="nav-9"> <label class="md-nav__link" for="nav-9"> Error Codes </label> <nav class="md-nav" data-md-component="collapsible" data-md-level="1"> <label class="md-nav__title" for="nav-9"> Error Codes </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="ft2-error_enumerations.html" title="Error Enumerations" class="md-nav__link"> Error Enumerations </a> </li> <li class="md-nav__item"> <a href="ft2-error_code_values.html" title="Error Code Values" class="md-nav__link"> Error Code Values </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-toggle md-nav__toggle" data-md-toggle="nav-10" type="checkbox" id="nav-10"> <label class="md-nav__link" for="nav-10"> Miscellaneous </label> <nav class="md-nav" data-md-component="collapsible" data-md-level="1"> <label class="md-nav__title" for="nav-10"> Miscellaneous </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="ft2-gx_validation.html" title="TrueTypeGX/AAT Validation" class="md-nav__link"> TrueTypeGX/AAT Validation </a> </li> <li class="md-nav__item"> <a href="ft2-incremental.html" title="Incremental Loading" class="md-nav__link"> Incremental Loading </a> </li> <li class="md-nav__item"> <a href="ft2-truetype_engine.html" title="The TrueType Engine" class="md-nav__link"> The TrueType Engine </a> </li> <li class="md-nav__item"> <a href="ft2-ot_validation.html" title="OpenType Validation" class="md-nav__link"> OpenType Validation </a> </li> </ul> </nav> </li> </ul> </nav> </div> </div> </div> <div class="md-sidebar md-sidebar--secondary" data-md-component="toc"> <div class="md-sidebar__scrollwrap"> <div class="md-sidebar__inner"> <nav class="md-nav md-nav--secondary"> <label class="md-nav__title" for="__toc">Table of contents</label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="#synopsis" class="md-nav__link"> Synopsis </a> </li> <li class="md-nav__item"> <a href="#ft_byte" class="md-nav__link"> FT_Byte </a> </li> <li class="md-nav__item"> <a href="#ft_bytes" class="md-nav__link"> FT_Bytes </a> </li> <li class="md-nav__item"> <a href="#ft_char" class="md-nav__link"> FT_Char </a> </li> <li class="md-nav__item"> <a href="#ft_int" class="md-nav__link"> FT_Int </a> </li> <li class="md-nav__item"> <a href="#ft_uint" class="md-nav__link"> FT_UInt </a> </li> <li class="md-nav__item"> <a href="#ft_int16" class="md-nav__link"> FT_Int16 </a> </li> <li class="md-nav__item"> <a href="#ft_uint16" class="md-nav__link"> FT_UInt16 </a> </li> <li class="md-nav__item"> <a href="#ft_int32" class="md-nav__link"> FT_Int32 </a> </li> <li class="md-nav__item"> <a href="#ft_uint32" class="md-nav__link"> FT_UInt32 </a> </li> <li class="md-nav__item"> <a href="#ft_int64" class="md-nav__link"> FT_Int64 </a> </li> <li class="md-nav__item"> <a href="#ft_uint64" class="md-nav__link"> FT_UInt64 </a> </li> <li class="md-nav__item"> <a href="#ft_short" class="md-nav__link"> FT_Short </a> </li> <li class="md-nav__item"> <a href="#ft_ushort" class="md-nav__link"> FT_UShort </a> </li> <li class="md-nav__item"> <a href="#ft_long" class="md-nav__link"> FT_Long </a> </li> <li class="md-nav__item"> <a href="#ft_ulong" class="md-nav__link"> FT_ULong </a> </li> <li class="md-nav__item"> <a href="#ft_bool" class="md-nav__link"> FT_Bool </a> </li> <li class="md-nav__item"> <a href="#ft_offset" class="md-nav__link"> FT_Offset </a> </li> <li class="md-nav__item"> <a href="#ft_ptrdist" class="md-nav__link"> FT_PtrDist </a> </li> <li class="md-nav__item"> <a href="#ft_string" class="md-nav__link"> FT_String </a> </li> <li class="md-nav__item"> <a href="#ft_tag" class="md-nav__link"> FT_Tag </a> </li> <li class="md-nav__item"> <a href="#ft_error" class="md-nav__link"> FT_Error </a> </li> <li class="md-nav__item"> <a href="#ft_fixed" class="md-nav__link"> FT_Fixed </a> </li> <li class="md-nav__item"> <a href="#ft_pointer" class="md-nav__link"> FT_Pointer </a> </li> <li class="md-nav__item"> <a href="#ft_pos" class="md-nav__link"> FT_Pos </a> </li> <li class="md-nav__item"> <a href="#ft_vector" class="md-nav__link"> FT_Vector </a> </li> <li class="md-nav__item"> <a href="#ft_bbox" class="md-nav__link"> FT_BBox </a> </li> <li class="md-nav__item"> <a href="#ft_matrix" class="md-nav__link"> FT_Matrix </a> </li> <li class="md-nav__item"> <a href="#ft_fword" class="md-nav__link"> FT_FWord </a> </li> <li class="md-nav__item"> <a href="#ft_ufword" class="md-nav__link"> FT_UFWord </a> </li> <li class="md-nav__item"> <a href="#ft_f2dot14" class="md-nav__link"> FT_F2Dot14 </a> </li> <li class="md-nav__item"> <a href="#ft_unitvector" class="md-nav__link"> FT_UnitVector </a> </li> <li class="md-nav__item"> <a href="#ft_f26dot6" class="md-nav__link"> FT_F26Dot6 </a> </li> <li class="md-nav__item"> <a href="#ft_data" class="md-nav__link"> FT_Data </a> </li> <li class="md-nav__item"> <a href="#ft_make_tag" class="md-nav__link"> FT_MAKE_TAG </a> </li> <li class="md-nav__item"> <a href="#ft_generic" class="md-nav__link"> FT_Generic </a> </li> <li class="md-nav__item"> <a href="#ft_generic_finalizer" class="md-nav__link"> FT_Generic_Finalizer </a> </li> <li class="md-nav__item"> <a href="#ft_bitmap" class="md-nav__link"> FT_Bitmap </a> </li> <li class="md-nav__item"> <a href="#ft_pixel_mode" class="md-nav__link"> FT_Pixel_Mode </a> </li> <li class="md-nav__item"> <a href="#ft_glyph_format" class="md-nav__link"> FT_Glyph_Format </a> </li> <li class="md-nav__item"> <a href="#ft_image_tag" class="md-nav__link"> FT_IMAGE_TAG </a> </li> </ul> </nav> </div> </div> </div> <div class="md-content"> <article class="md-content__inner md-typeset"> <p><a href="https://www.freetype.org">FreeType</a> » <a href="../">Docs</a> » <a href="index.html#core-api">Core API</a> » Basic Data Types</p> <hr /> <h1 id="basic-data-types">Basic Data Types<a class="headerlink" href="#basic-data-types" title="Permanent link">¶</a></h1> <h2 id="synopsis">Synopsis<a class="headerlink" href="#synopsis" title="Permanent link">¶</a></h2> <p>This section contains the basic data types defined by FreeType 2, ranging from simple scalar types to bitmap descriptors. More font-specific structures are defined in a different section.</p> <h2 id="ft_byte">FT_Byte<a class="headerlink" href="#ft_byte" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">unsigned</span> <span class="keyword">char</span> <b>FT_Byte</b>; </code></pre></div> <p>A simple typedef for the <em>unsigned</em> char type.</p> <hr> <h2 id="ft_bytes">FT_Bytes<a class="headerlink" href="#ft_bytes" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">const</span> <a href="ft2-basic_types.html#ft_byte">FT_Byte</a>* <b>FT_Bytes</b>; </code></pre></div> <p>A typedef for constant memory areas.</p> <hr> <h2 id="ft_char">FT_Char<a class="headerlink" href="#ft_char" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">signed</span> <span class="keyword">char</span> <b>FT_Char</b>; </code></pre></div> <p>A simple typedef for the <em>signed</em> char type.</p> <hr> <h2 id="ft_int">FT_Int<a class="headerlink" href="#ft_int" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">signed</span> <span class="keyword">int</span> <b>FT_Int</b>; </code></pre></div> <p>A typedef for the int type.</p> <hr> <h2 id="ft_uint">FT_UInt<a class="headerlink" href="#ft_uint" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <b>FT_UInt</b>; </code></pre></div> <p>A typedef for the unsigned int type.</p> <hr> <h2 id="ft_int16">FT_Int16<a class="headerlink" href="#ft_int16" title="Permanent link">¶</a></h2> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">signed</span> <span class="keyword">short</span> <b>FT_Int16</b>; </code></pre></div> <p>A typedef for a 16bit signed integer type.</p> <hr> <h2 id="ft_uint16">FT_UInt16<a class="headerlink" href="#ft_uint16" title="Permanent link">¶</a></h2> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">unsigned</span> <span class="keyword">short</span> <b>FT_UInt16</b>; </code></pre></div> <p>A typedef for a 16bit unsigned integer type.</p> <hr> <h2 id="ft_int32">FT_Int32<a class="headerlink" href="#ft_int32" title="Permanent link">¶</a></h2> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">signed</span> XXX <b>FT_Int32</b>; </code></pre></div> <p>A typedef for a 32bit signed integer type. The size depends on the configuration.</p> <hr> <h2 id="ft_uint32">FT_UInt32<a class="headerlink" href="#ft_uint32" title="Permanent link">¶</a></h2> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">unsigned</span> XXX <b>FT_UInt32</b>; </code></pre></div> <hr> <h2 id="ft_int64">FT_Int64<a class="headerlink" href="#ft_int64" title="Permanent link">¶</a></h2> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">signed</span> XXX <b>FT_Int64</b>; </code></pre></div> <hr> <h2 id="ft_uint64">FT_UInt64<a class="headerlink" href="#ft_uint64" title="Permanent link">¶</a></h2> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">unsigned</span> XXX <b>FT_UInt64</b>; </code></pre></div> <hr> <h2 id="ft_short">FT_Short<a class="headerlink" href="#ft_short" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">signed</span> <span class="keyword">short</span> <b>FT_Short</b>; </code></pre></div> <p>A typedef for signed short.</p> <hr> <h2 id="ft_ushort">FT_UShort<a class="headerlink" href="#ft_ushort" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">unsigned</span> <span class="keyword">short</span> <b>FT_UShort</b>; </code></pre></div> <p>A typedef for unsigned short.</p> <hr> <h2 id="ft_long">FT_Long<a class="headerlink" href="#ft_long" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">signed</span> <span class="keyword">long</span> <b>FT_Long</b>; </code></pre></div> <p>A typedef for signed long.</p> <hr> <h2 id="ft_ulong">FT_ULong<a class="headerlink" href="#ft_ulong" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">unsigned</span> <span class="keyword">long</span> <b>FT_ULong</b>; </code></pre></div> <p>A typedef for unsigned long.</p> <hr> <h2 id="ft_bool">FT_Bool<a class="headerlink" href="#ft_bool" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">unsigned</span> <span class="keyword">char</span> <b>FT_Bool</b>; </code></pre></div> <p>A typedef of unsigned char, used for simple booleans. As usual, values 1 and 0 represent true and false, respectively.</p> <hr> <h2 id="ft_offset">FT_Offset<a class="headerlink" href="#ft_offset" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> size_t <b>FT_Offset</b>; </code></pre></div> <p>This is equivalent to the ANSI C <code>size_t</code> type, i.e., the largest <em>unsigned</em> integer type used to express a file size or position, or a memory block size.</p> <hr> <h2 id="ft_ptrdist">FT_PtrDist<a class="headerlink" href="#ft_ptrdist" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> ft_ptrdiff_t <b>FT_PtrDist</b>; </code></pre></div> <p>This is equivalent to the ANSI C <code>ptrdiff_t</code> type, i.e., the largest <em>signed</em> integer type used to express the distance between two pointers.</p> <hr> <h2 id="ft_string">FT_String<a class="headerlink" href="#ft_string" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">char</span> <b>FT_String</b>; </code></pre></div> <p>A simple typedef for the char type, usually used for strings.</p> <hr> <h2 id="ft_tag">FT_Tag<a class="headerlink" href="#ft_tag" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <a href="ft2-basic_types.html#ft_uint32">FT_UInt32</a> <b>FT_Tag</b>; </code></pre></div> <p>A typedef for 32-bit tags (as used in the SFNT format).</p> <hr> <h2 id="ft_error">FT_Error<a class="headerlink" href="#ft_error" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">int</span> <b>FT_Error</b>; </code></pre></div> <p>The FreeType error code type. A value of 0 is always interpreted as a successful operation.</p> <hr> <h2 id="ft_fixed">FT_Fixed<a class="headerlink" href="#ft_fixed" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">signed</span> <span class="keyword">long</span> <b>FT_Fixed</b>; </code></pre></div> <p>This type is used to store 16.16 fixed-point values, like scaling values or matrix coefficients.</p> <hr> <h2 id="ft_pointer">FT_Pointer<a class="headerlink" href="#ft_pointer" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">void</span>* <b>FT_Pointer</b>; </code></pre></div> <p>A simple typedef for a typeless pointer.</p> <hr> <h2 id="ft_pos">FT_Pos<a class="headerlink" href="#ft_pos" title="Permanent link">¶</a></h2> <p>Defined in FT_IMAGE_H (freetype/ftimage.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">signed</span> <span class="keyword">long</span> <b>FT_Pos</b>; </code></pre></div> <p>The type FT_Pos is used to store vectorial coordinates. Depending on the context, these can represent distances in integer font units, or 16.16, or 26.6 fixed-point pixel coordinates.</p> <hr> <h2 id="ft_vector">FT_Vector<a class="headerlink" href="#ft_vector" title="Permanent link">¶</a></h2> <p>Defined in FT_IMAGE_H (freetype/ftimage.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_Vector_ { <a href="ft2-basic_types.html#ft_pos">FT_Pos</a> x; <a href="ft2-basic_types.html#ft_pos">FT_Pos</a> y; } <b>FT_Vector</b>; </code></pre></div> <p>A simple structure used to store a 2D vector; coordinates are of the FT_Pos type.</p> <h4>fields</h4> <table class="fields"> <tr><td class="val" id="x">x</td><td class="desc"> <p>The horizontal coordinate.</p> </td></tr> <tr><td class="val" id="y">y</td><td class="desc"> <p>The vertical coordinate.</p> </td></tr> </table> <hr> <h2 id="ft_bbox">FT_BBox<a class="headerlink" href="#ft_bbox" title="Permanent link">¶</a></h2> <p>Defined in FT_IMAGE_H (freetype/ftimage.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_BBox_ { <a href="ft2-basic_types.html#ft_pos">FT_Pos</a> xMin, yMin; <a href="ft2-basic_types.html#ft_pos">FT_Pos</a> xMax, yMax; } <b>FT_BBox</b>; </code></pre></div> <p>A structure used to hold an outline's bounding box, i.e., the coordinates of its extrema in the horizontal and vertical directions.</p> <h4>fields</h4> <table class="fields"> <tr><td class="val" id="xmin">xMin</td><td class="desc"> <p>The horizontal minimum (left-most).</p> </td></tr> <tr><td class="val" id="ymin">yMin</td><td class="desc"> <p>The vertical minimum (bottom-most).</p> </td></tr> <tr><td class="val" id="xmax">xMax</td><td class="desc"> <p>The horizontal maximum (right-most).</p> </td></tr> <tr><td class="val" id="ymax">yMax</td><td class="desc"> <p>The vertical maximum (top-most).</p> </td></tr> </table> <h4>note</h4> <p>The bounding box is specified with the coordinates of the lower left and the upper right corner. In PostScript, those values are often called (llx,lly) and (urx,ury), respectively.</p> <p>If <code>yMin</code> is negative, this value gives the glyph's descender. Otherwise, the glyph doesn't descend below the baseline. Similarly, if <code>ymax</code> is positive, this value gives the glyph's ascender.</p> <p><code>xMin</code> gives the horizontal distance from the glyph's origin to the left edge of the glyph's bounding box. If <code>xMin</code> is negative, the glyph extends to the left of the origin.</p> <hr> <h2 id="ft_matrix">FT_Matrix<a class="headerlink" href="#ft_matrix" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_Matrix_ { <a href="ft2-basic_types.html#ft_fixed">FT_Fixed</a> xx, xy; <a href="ft2-basic_types.html#ft_fixed">FT_Fixed</a> yx, yy; } <b>FT_Matrix</b>; </code></pre></div> <p>A simple structure used to store a 2x2 matrix. Coefficients are in 16.16 fixed-point format. The computation performed is: <div class="highlight"><pre><span></span><code> x' = x*xx + y*xy y' = x*yx + y*yy </code></pre></div></p> <h4>fields</h4> <table class="fields"> <tr><td class="val" id="xx">xx</td><td class="desc"> <p>Matrix coefficient.</p> </td></tr> <tr><td class="val" id="xy">xy</td><td class="desc"> <p>Matrix coefficient.</p> </td></tr> <tr><td class="val" id="yx">yx</td><td class="desc"> <p>Matrix coefficient.</p> </td></tr> <tr><td class="val" id="yy">yy</td><td class="desc"> <p>Matrix coefficient.</p> </td></tr> </table> <hr> <h2 id="ft_fword">FT_FWord<a class="headerlink" href="#ft_fword" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">signed</span> <span class="keyword">short</span> <b>FT_FWord</b>; /* distance in FUnits */ </code></pre></div> <p>A signed 16-bit integer used to store a distance in original font units.</p> <hr> <h2 id="ft_ufword">FT_UFWord<a class="headerlink" href="#ft_ufword" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">unsigned</span> <span class="keyword">short</span> <b>FT_UFWord</b>; /* <span class="keyword">unsigned</span> distance */ </code></pre></div> <p>An unsigned 16-bit integer used to store a distance in original font units.</p> <hr> <h2 id="ft_f2dot14">FT_F2Dot14<a class="headerlink" href="#ft_f2dot14" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">signed</span> <span class="keyword">short</span> <b>FT_F2Dot14</b>; </code></pre></div> <p>A signed 2.14 fixed-point type used for unit vectors.</p> <hr> <h2 id="ft_unitvector">FT_UnitVector<a class="headerlink" href="#ft_unitvector" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_UnitVector_ { <a href="ft2-basic_types.html#ft_f2dot14">FT_F2Dot14</a> x; <a href="ft2-basic_types.html#ft_f2dot14">FT_F2Dot14</a> y; } <b>FT_UnitVector</b>; </code></pre></div> <p>A simple structure used to store a 2D vector unit vector. Uses FT_F2Dot14 types.</p> <h4>fields</h4> <table class="fields"> <tr><td class="val" id="x">x</td><td class="desc"> <p>Horizontal coordinate.</p> </td></tr> <tr><td class="val" id="y">y</td><td class="desc"> <p>Vertical coordinate.</p> </td></tr> </table> <hr> <h2 id="ft_f26dot6">FT_F26Dot6<a class="headerlink" href="#ft_f26dot6" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">signed</span> <span class="keyword">long</span> <b>FT_F26Dot6</b>; </code></pre></div> <p>A signed 26.6 fixed-point type used for vectorial pixel coordinates.</p> <hr> <h2 id="ft_data">FT_Data<a class="headerlink" href="#ft_data" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_Data_ { <span class="keyword">const</span> <a href="ft2-basic_types.html#ft_byte">FT_Byte</a>* pointer; <a href="ft2-basic_types.html#ft_int">FT_Int</a> length; } <b>FT_Data</b>; </code></pre></div> <p>Read-only binary data represented as a pointer and a length.</p> <h4>fields</h4> <table class="fields"> <tr><td class="val" id="pointer">pointer</td><td class="desc"> <p>The data.</p> </td></tr> <tr><td class="val" id="length">length</td><td class="desc"> <p>The length of the data in bytes.</p> </td></tr> </table> <hr> <h2 id="ft_make_tag">FT_MAKE_TAG<a class="headerlink" href="#ft_make_tag" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code>#<span class="keyword">define</span> <b>FT_MAKE_TAG</b>( _x1, _x2, _x3, _x4 ) \ (<a href="ft2-basic_types.html#ft_tag">FT_Tag</a>) \ ( ( (<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a>)_x1 << 24 ) | \ ( (<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a>)_x2 << 16 ) | \ ( (<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a>)_x3 << 8 ) | \ (<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a>)_x4 ) </code></pre></div> <p>This macro converts four-letter tags that are used to label TrueType tables into an unsigned long, to be used within FreeType.</p> <h4>note</h4> <p>The produced values <strong>must</strong> be 32-bit integers. Don't redefine this macro.</p> <hr> <h2 id="ft_generic">FT_Generic<a class="headerlink" href="#ft_generic" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_Generic_ { <span class="keyword">void</span>* data; <a href="ft2-basic_types.html#ft_generic_finalizer">FT_Generic_Finalizer</a> finalizer; } <b>FT_Generic</b>; </code></pre></div> <p>Client applications often need to associate their own data to a variety of FreeType core objects. For example, a text layout API might want to associate a glyph cache to a given size object.</p> <p>Some FreeType object contains a <code>generic</code> field, of type <code>FT_Generic</code>, which usage is left to client applications and font servers.</p> <p>It can be used to store a pointer to client-specific data, as well as the address of a ‘finalizer’ function, which will be called by FreeType when the object is destroyed (for example, the previous client example would put the address of the glyph cache destructor in the <code>finalizer</code> field).</p> <h4>fields</h4> <table class="fields"> <tr><td class="val" id="data">data</td><td class="desc"> <p>A typeless pointer to any client-specified data. This field is completely ignored by the FreeType library.</p> </td></tr> <tr><td class="val" id="finalizer">finalizer</td><td class="desc"> <p>A pointer to a ‘generic finalizer’ function, which will be called when the object is destroyed. If this field is set to <code>NULL</code>, no code will be called.</p> </td></tr> </table> <hr> <h2 id="ft_generic_finalizer">FT_Generic_Finalizer<a class="headerlink" href="#ft_generic_finalizer" title="Permanent link">¶</a></h2> <p>Defined in FT_TYPES_H (freetype/fttypes.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">void</span> (*<b>FT_Generic_Finalizer</b>)( <span class="keyword">void</span>* object ); </code></pre></div> <p>Describe a function used to destroy the ‘client’ data of any FreeType object. See the description of the <code><a href="ft2-basic_types.html#ft_generic">FT_Generic</a></code> type for details of usage.</p> <h4>input</h4> <p>The address of the FreeType object that is under finalization. Its client data is accessed through its <code>generic</code> field.</p> <hr> <h2 id="ft_bitmap">FT_Bitmap<a class="headerlink" href="#ft_bitmap" title="Permanent link">¶</a></h2> <p>Defined in FT_IMAGE_H (freetype/ftimage.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_Bitmap_ { <span class="keyword">unsigned</span> <span class="keyword">int</span> rows; <span class="keyword">unsigned</span> <span class="keyword">int</span> width; <span class="keyword">int</span> pitch; <span class="keyword">unsigned</span> <span class="keyword">char</span>* buffer; <span class="keyword">unsigned</span> <span class="keyword">short</span> num_grays; <span class="keyword">unsigned</span> <span class="keyword">char</span> pixel_mode; <span class="keyword">unsigned</span> <span class="keyword">char</span> palette_mode; <span class="keyword">void</span>* palette; } <b>FT_Bitmap</b>; </code></pre></div> <p>A structure used to describe a bitmap or pixmap to the raster. Note that we now manage pixmaps of various depths through the <code>pixel_mode</code> field.</p> <h4>fields</h4> <table class="fields"> <tr><td class="val" id="rows">rows</td><td class="desc"> <p>The number of bitmap rows.</p> </td></tr> <tr><td class="val" id="width">width</td><td class="desc"> <p>The number of pixels in bitmap row.</p> </td></tr> <tr><td class="val" id="pitch">pitch</td><td class="desc"> <p>The pitch's absolute value is the number of bytes taken by one bitmap row, including padding. However, the pitch is positive when the bitmap has a ‘down’ flow, and negative when it has an ‘up’ flow. In all cases, the pitch is an offset to add to a bitmap pointer in order to go down one row.</p> <p>Note that ‘padding’ means the alignment of a bitmap to a byte border, and FreeType functions normally align to the smallest possible integer value.</p> <p>For the B/W rasterizer, <code>pitch</code> is always an even number.</p> <p>To change the pitch of a bitmap (say, to make it a multiple of 4), use <code><a href="ft2-bitmap_handling.html#ft_bitmap_convert">FT_Bitmap_Convert</a></code>. Alternatively, you might use callback functions to directly render to the application's surface; see the file <code>example2.cpp</code> in the tutorial for a demonstration.</p> </td></tr> <tr><td class="val" id="buffer">buffer</td><td class="desc"> <p>A typeless pointer to the bitmap buffer. This value should be aligned on 32-bit boundaries in most cases.</p> </td></tr> <tr><td class="val" id="num_grays">num_grays</td><td class="desc"> <p>This field is only used with <code><a href="ft2-basic_types.html#ft_pixel_mode">FT_PIXEL_MODE_GRAY</a></code>; it gives the number of gray levels used in the bitmap.</p> </td></tr> <tr><td class="val" id="pixel_mode">pixel_mode</td><td class="desc"> <p>The pixel mode, i.e., how pixel bits are stored. See <code><a href="ft2-basic_types.html#ft_pixel_mode">FT_Pixel_Mode</a></code> for possible values.</p> </td></tr> <tr><td class="val" id="palette_mode">palette_mode</td><td class="desc"> <p>This field is intended for paletted pixel modes; it indicates how the palette is stored. Not used currently.</p> </td></tr> <tr><td class="val" id="palette">palette</td><td class="desc"> <p>A typeless pointer to the bitmap palette; this field is intended for paletted pixel modes. Not used currently.</p> </td></tr> </table> <hr> <h2 id="ft_pixel_mode">FT_Pixel_Mode<a class="headerlink" href="#ft_pixel_mode" title="Permanent link">¶</a></h2> <p>Defined in FT_IMAGE_H (freetype/ftimage.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">enum</span> FT_Pixel_Mode_ { <a href="ft2-basic_types.html#ft_pixel_mode_none">FT_PIXEL_MODE_NONE</a> = 0, <a href="ft2-basic_types.html#ft_pixel_mode_mono">FT_PIXEL_MODE_MONO</a>, <a href="ft2-basic_types.html#ft_pixel_mode_gray">FT_PIXEL_MODE_GRAY</a>, <a href="ft2-basic_types.html#ft_pixel_mode_gray2">FT_PIXEL_MODE_GRAY2</a>, <a href="ft2-basic_types.html#ft_pixel_mode_gray4">FT_PIXEL_MODE_GRAY4</a>, <a href="ft2-basic_types.html#ft_pixel_mode_lcd">FT_PIXEL_MODE_LCD</a>, <a href="ft2-basic_types.html#ft_pixel_mode_lcd_v">FT_PIXEL_MODE_LCD_V</a>, <a href="ft2-basic_types.html#ft_pixel_mode_bgra">FT_PIXEL_MODE_BGRA</a>, FT_PIXEL_MODE_MAX /* do not remove */ } <b>FT_Pixel_Mode</b>; /* these constants are deprecated; use the corresponding `<b>FT_Pixel_Mode</b>` */ /* values instead. */ #<span class="keyword">define</span> ft_pixel_mode_none <a href="ft2-basic_types.html#ft_pixel_mode_none">FT_PIXEL_MODE_NONE</a> #<span class="keyword">define</span> ft_pixel_mode_mono <a href="ft2-basic_types.html#ft_pixel_mode_mono">FT_PIXEL_MODE_MONO</a> #<span class="keyword">define</span> ft_pixel_mode_grays <a href="ft2-basic_types.html#ft_pixel_mode_gray">FT_PIXEL_MODE_GRAY</a> #<span class="keyword">define</span> ft_pixel_mode_pal2 <a href="ft2-basic_types.html#ft_pixel_mode_gray2">FT_PIXEL_MODE_GRAY2</a> #<span class="keyword">define</span> ft_pixel_mode_pal4 <a href="ft2-basic_types.html#ft_pixel_mode_gray4">FT_PIXEL_MODE_GRAY4</a> </code></pre></div> <p>An enumeration type used to describe the format of pixels in a given bitmap. Note that additional formats may be added in the future.</p> <h4>values</h4> <table class="fields"> <tr><td class="val" id="ft_pixel_mode_none">FT_PIXEL_MODE_NONE</td><td class="desc"> <p>Value 0 is reserved.</p> </td></tr> <tr><td class="val" id="ft_pixel_mode_mono">FT_PIXEL_MODE_MONO</td><td class="desc"> <p>A monochrome bitmap, using 1 bit per pixel. Note that pixels are stored in most-significant order (MSB), which means that the left-most pixel in a byte has value 128.</p> </td></tr> <tr><td class="val" id="ft_pixel_mode_gray">FT_PIXEL_MODE_GRAY</td><td class="desc"> <p>An 8-bit bitmap, generally used to represent anti-aliased glyph images. Each pixel is stored in one byte. Note that the number of ‘gray’ levels is stored in the <code>num_grays</code> field of the <code><a href="ft2-basic_types.html#ft_bitmap">FT_Bitmap</a></code> structure (it generally is 256).</p> </td></tr> <tr><td class="val" id="ft_pixel_mode_gray2">FT_PIXEL_MODE_GRAY2</td><td class="desc"> <p>A 2-bit per pixel bitmap, used to represent embedded anti-aliased bitmaps in font files according to the OpenType specification. We haven't found a single font using this format, however.</p> </td></tr> <tr><td class="val" id="ft_pixel_mode_gray4">FT_PIXEL_MODE_GRAY4</td><td class="desc"> <p>A 4-bit per pixel bitmap, representing embedded anti-aliased bitmaps in font files according to the OpenType specification. We haven't found a single font using this format, however.</p> </td></tr> <tr><td class="val" id="ft_pixel_mode_lcd">FT_PIXEL_MODE_LCD</td><td class="desc"> <p>An 8-bit bitmap, representing RGB or BGR decimated glyph images used for display on LCD displays; the bitmap is three times wider than the original glyph image. See also <code><a href="ft2-base_interface.html#ft_render_mode">FT_RENDER_MODE_LCD</a></code>.</p> </td></tr> <tr><td class="val" id="ft_pixel_mode_lcd_v">FT_PIXEL_MODE_LCD_V</td><td class="desc"> <p>An 8-bit bitmap, representing RGB or BGR decimated glyph images used for display on rotated LCD displays; the bitmap is three times taller than the original glyph image. See also <code><a href="ft2-base_interface.html#ft_render_mode">FT_RENDER_MODE_LCD_V</a></code>.</p> </td></tr> <tr><td class="val" id="ft_pixel_mode_bgra">FT_PIXEL_MODE_BGRA</td><td class="desc"> <p>[Since 2.5] An image with four 8-bit channels per pixel, representing a color image (such as emoticons) with alpha channel. For each pixel, the format is BGRA, which means, the blue channel comes first in memory. The color channels are pre-multiplied and in the sRGB colorspace. For example, full red at half-translucent opacity will be represented as ‘00,00,80,80’, not ‘00,00,FF,80’. See also <code><a href="ft2-base_interface.html#ft_load_xxx">FT_LOAD_COLOR</a></code>.</p> </td></tr> </table> <hr> <h2 id="ft_glyph_format">FT_Glyph_Format<a class="headerlink" href="#ft_glyph_format" title="Permanent link">¶</a></h2> <p>Defined in FT_IMAGE_H (freetype/ftimage.h).</p> <div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">enum</span> FT_Glyph_Format_ { <a href="ft2-basic_types.html#ft_image_tag">FT_IMAGE_TAG</a>( <a href="ft2-basic_types.html#ft_glyph_format_none">FT_GLYPH_FORMAT_NONE</a>, 0, 0, 0, 0 ), <a href="ft2-basic_types.html#ft_image_tag">FT_IMAGE_TAG</a>( <a href="ft2-basic_types.html#ft_glyph_format_composite">FT_GLYPH_FORMAT_COMPOSITE</a>, 'c', 'o', 'm', 'p' ), <a href="ft2-basic_types.html#ft_image_tag">FT_IMAGE_TAG</a>( <a href="ft2-basic_types.html#ft_glyph_format_bitmap">FT_GLYPH_FORMAT_BITMAP</a>, 'b', 'i', 't', 's' ), <a href="ft2-basic_types.html#ft_image_tag">FT_IMAGE_TAG</a>( <a href="ft2-basic_types.html#ft_glyph_format_outline">FT_GLYPH_FORMAT_OUTLINE</a>, 'o', 'u', 't', 'l' ), <a href="ft2-basic_types.html#ft_image_tag">FT_IMAGE_TAG</a>( <a href="ft2-basic_types.html#ft_glyph_format_plotter">FT_GLYPH_FORMAT_PLOTTER</a>, 'p', 'l', 'o', 't' ) } <b>FT_Glyph_Format</b>; /* these constants are deprecated; use the corresponding */ /* `<b>FT_Glyph_Format</b>` values instead. */ #<span class="keyword">define</span> ft_glyph_format_none <a href="ft2-basic_types.html#ft_glyph_format_none">FT_GLYPH_FORMAT_NONE</a> #<span class="keyword">define</span> ft_glyph_format_composite <a href="ft2-basic_types.html#ft_glyph_format_composite">FT_GLYPH_FORMAT_COMPOSITE</a> #<span class="keyword">define</span> ft_glyph_format_bitmap <a href="ft2-basic_types.html#ft_glyph_format_bitmap">FT_GLYPH_FORMAT_BITMAP</a> #<span class="keyword">define</span> ft_glyph_format_outline <a href="ft2-basic_types.html#ft_glyph_format_outline">FT_GLYPH_FORMAT_OUTLINE</a> #<span class="keyword">define</span> ft_glyph_format_plotter <a href="ft2-basic_types.html#ft_glyph_format_plotter">FT_GLYPH_FORMAT_PLOTTER</a> </code></pre></div> <p>An enumeration type used to describe the format of a given glyph image. Note that this version of FreeType only supports two image formats, even though future font drivers will be able to register their own format.</p> <h4>values</h4> <table class="fields"> <tr><td class="val" id="ft_glyph_format_none">FT_GLYPH_FORMAT_NONE</td><td class="desc"> <p>The value 0 is reserved.</p> </td></tr> <tr><td class="val" id="ft_glyph_format_composite">FT_GLYPH_FORMAT_COMPOSITE</td><td class="desc"> <p>The glyph image is a composite of several other images. This format is <em>only</em> used with <code><a href="ft2-base_interface.html#ft_load_xxx">FT_LOAD_NO_RECURSE</a></code>, and is used to report compound glyphs (like accented characters).</p> </td></tr> <tr><td class="val" id="ft_glyph_format_bitmap">FT_GLYPH_FORMAT_BITMAP</td><td class="desc"> <p>The glyph image is a bitmap, and can be described as an <code><a href="ft2-basic_types.html#ft_bitmap">FT_Bitmap</a></code>. You generally need to access the <code>bitmap</code> field of the <code><a href="ft2-base_interface.html#ft_glyphslotrec">FT_GlyphSlotRec</a></code> structure to read it.</p> </td></tr> <tr><td class="val" id="ft_glyph_format_outline">FT_GLYPH_FORMAT_OUTLINE</td><td class="desc"> <p>The glyph image is a vectorial outline made of line segments and Bezier arcs; it can be described as an <code><a href="ft2-outline_processing.html#ft_outline">FT_Outline</a></code>; you generally want to access the <code>outline</code> field of the <code><a href="ft2-base_interface.html#ft_glyphslotrec">FT_GlyphSlotRec</a></code> structure to read it.</p> </td></tr> <tr><td class="val" id="ft_glyph_format_plotter">FT_GLYPH_FORMAT_PLOTTER</td><td class="desc"> <p>The glyph image is a vectorial path with no inside and outside contours. Some Type 1 fonts, like those in the Hershey family, contain glyphs in this format. These are described as <code><a href="ft2-outline_processing.html#ft_outline">FT_Outline</a></code>, but FreeType isn't currently capable of rendering them correctly.</p> </td></tr> </table> <hr> <h2 id="ft_image_tag">FT_IMAGE_TAG<a class="headerlink" href="#ft_image_tag" title="Permanent link">¶</a></h2> <p>Defined in FT_IMAGE_H (freetype/ftimage.h).</p> <div class = "codehilite"><pre><code>#<span class="keyword">ifndef</span> <b>FT_IMAGE_TAG</b> #<span class="keyword">define</span> <b>FT_IMAGE_TAG</b>( value, _x1, _x2, _x3, _x4 ) \ value = ( ( (<span class="keyword">unsigned</span> <span class="keyword">long</span>)_x1 << 24 ) | \ ( (<span class="keyword">unsigned</span> <span class="keyword">long</span>)_x2 << 16 ) | \ ( (<span class="keyword">unsigned</span> <span class="keyword">long</span>)_x3 << 8 ) | \ (<span class="keyword">unsigned</span> <span class="keyword">long</span>)_x4 ) #<span class="keyword">endif</span> /* <b>FT_IMAGE_TAG</b> */ </code></pre></div> <p>This macro converts four-letter tags to an unsigned long type.</p> <h4>note</h4> <p>Since many 16-bit compilers don't like 32-bit enumerations, you should redefine this macro in case of problems to something like this: <div class="highlight"><pre><span></span><code> #define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 ) value </code></pre></div></p> <p>to get a simple enumeration without assigning special numbers.</p> <hr> </article> </div> </div> </main> <footer class="md-footer"> <div class="md-footer-nav"> <nav class="md-footer-nav__inner md-grid"> <a href="ft2-version.html" title="FreeType Version" class="md-flex md-footer-nav__link md-footer-nav__link--prev" rel="prev"> <div class="md-flex__cell md-flex__cell--shrink"> <i class="md-icon md-icon--arrow-back md-footer-nav__button"></i> </div> <div class="md-flex__cell md-flex__cell--stretch md-footer-nav__title"> <span class="md-flex__ellipsis"> <span class="md-footer-nav__direction"> Previous </span> FreeType Version </span> </div> </a> <a href="ft2-base_interface.html" title="Base Interface" class="md-flex md-footer-nav__link md-footer-nav__link--next" rel="next"> <div class="md-flex__cell md-flex__cell--stretch md-footer-nav__title"> <span class="md-flex__ellipsis"> <span class="md-footer-nav__direction"> Next </span> Base Interface </span> </div> <div class="md-flex__cell md-flex__cell--shrink"> <i class="md-icon md-icon--arrow-forward md-footer-nav__button"></i> </div> </a> </nav> </div> <div class="md-footer-meta md-typeset"> <div class="md-footer-meta__inner md-grid"> <div class="md-footer-copyright"> <div class="md-footer-copyright__highlight"> Copyright 2020 <a href = "https://www.freetype.org/license.html">The FreeType Project</a>. </div> powered by <a href="https://www.mkdocs.org" target="_blank" rel="noopener">MkDocs</a> and <a href="https://squidfunk.github.io/mkdocs-material/" target="_blank" rel="noopener"> Material for MkDocs</a> </div> </div> </div> </footer> </div> <script src="assets/javascripts/application.c33a9706.js"></script> <script>app.initialize({version:"1.1",url:{base:"."}})</script> <script src="javascripts/extra.js"></script> </body> </html>