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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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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--active md-nav__item--nested"> <input class="md-toggle md-nav__toggle" data-md-toggle="nav-5" type="checkbox" id="nav-5" checked> <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 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"> PFR Fonts </label> <a href="ft2-pfr_fonts.html" title="PFR Fonts" class="md-nav__link md-nav__link--active"> PFR Fonts </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_get_pfr_metrics" class="md-nav__link"> FT_Get_PFR_Metrics </a> </li> <li class="md-nav__item"> <a href="#ft_get_pfr_kerning" class="md-nav__link"> FT_Get_PFR_Kerning </a> </li> <li class="md-nav__item"> <a href="#ft_get_pfr_advance" class="md-nav__link"> FT_Get_PFR_Advance </a> </li> </ul> </nav> </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" 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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_get_pfr_metrics" class="md-nav__link"> FT_Get_PFR_Metrics </a> </li> <li class="md-nav__item"> <a href="#ft_get_pfr_kerning" class="md-nav__link"> FT_Get_PFR_Kerning </a> </li> <li class="md-nav__item"> <a href="#ft_get_pfr_advance" class="md-nav__link"> FT_Get_PFR_Advance </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#format-specific-api">Format-Specific API</a> » PFR Fonts</p> <hr /> <h1 id="pfr-fonts">PFR Fonts<a class="headerlink" href="#pfr-fonts" title="Permanent link">¶</a></h1> <h2 id="synopsis">Synopsis<a class="headerlink" href="#synopsis" title="Permanent link">¶</a></h2> <p>This section contains the declaration of PFR-specific functions.</p> <h2 id="ft_get_pfr_metrics">FT_Get_PFR_Metrics<a class="headerlink" href="#ft_get_pfr_metrics" title="Permanent link">¶</a></h2> <p>Defined in FT_PFR_H (freetype/ftpfr.h).</p> <div class = "codehilite"><pre><code> FT_EXPORT( <a href="ft2-basic_types.html#ft_error">FT_Error</a> ) <b>FT_Get_PFR_Metrics</b>( <a href="ft2-base_interface.html#ft_face">FT_Face</a> face, <a href="ft2-basic_types.html#ft_uint">FT_UInt</a> *aoutline_resolution, <a href="ft2-basic_types.html#ft_uint">FT_UInt</a> *ametrics_resolution, <a href="ft2-basic_types.html#ft_fixed">FT_Fixed</a> *ametrics_x_scale, <a href="ft2-basic_types.html#ft_fixed">FT_Fixed</a> *ametrics_y_scale ); </code></pre></div> <p>Return the outline and metrics resolutions of a given PFR face.</p> <h4>input</h4> <table class="fields"> <tr><td class="val" id="face">face</td><td class="desc"> <p>Handle to the input face. It can be a non-PFR face.</p> </td></tr> </table> <h4>output</h4> <table class="fields"> <tr><td class="val" id="aoutline_resolution">aoutline_resolution</td><td class="desc"> <p>Outline resolution. This is equivalent to <code>face->units_per_EM</code> for non-PFR fonts. Optional (parameter can be <code>NULL</code>).</p> </td></tr> <tr><td class="val" id="ametrics_resolution">ametrics_resolution</td><td class="desc"> <p>Metrics resolution. This is equivalent to <code>outline_resolution</code> for non-PFR fonts. Optional (parameter can be <code>NULL</code>).</p> </td></tr> <tr><td class="val" id="ametrics_x_scale">ametrics_x_scale</td><td class="desc"> <p>A 16.16 fixed-point number used to scale distance expressed in metrics units to device subpixels. This is equivalent to <code>face->size->x_scale</code>, but for metrics only. Optional (parameter can be <code>NULL</code>).</p> </td></tr> <tr><td class="val" id="ametrics_y_scale">ametrics_y_scale</td><td class="desc"> <p>Same as <code>ametrics_x_scale</code> but for the vertical direction. optional (parameter can be <code>NULL</code>).</p> </td></tr> </table> <h4>return</h4> <p>FreeType error code. 0 means success.</p> <h4>note</h4> <p>If the input face is not a PFR, this function will return an error. However, in all cases, it will return valid values.</p> <hr> <h2 id="ft_get_pfr_kerning">FT_Get_PFR_Kerning<a class="headerlink" href="#ft_get_pfr_kerning" title="Permanent link">¶</a></h2> <p>Defined in FT_PFR_H (freetype/ftpfr.h).</p> <div class = "codehilite"><pre><code> FT_EXPORT( <a href="ft2-basic_types.html#ft_error">FT_Error</a> ) <b>FT_Get_PFR_Kerning</b>( <a href="ft2-base_interface.html#ft_face">FT_Face</a> face, <a href="ft2-basic_types.html#ft_uint">FT_UInt</a> left, <a href="ft2-basic_types.html#ft_uint">FT_UInt</a> right, <a href="ft2-basic_types.html#ft_vector">FT_Vector</a> *avector ); </code></pre></div> <p>Return the kerning pair corresponding to two glyphs in a PFR face. The distance is expressed in metrics units, unlike the result of <code><a href="ft2-base_interface.html#ft_get_kerning">FT_Get_Kerning</a></code>.</p> <h4>input</h4> <table class="fields"> <tr><td class="val" id="face">face</td><td class="desc"> <p>A handle to the input face.</p> </td></tr> <tr><td class="val" id="left">left</td><td class="desc"> <p>Index of the left glyph.</p> </td></tr> <tr><td class="val" id="right">right</td><td class="desc"> <p>Index of the right glyph.</p> </td></tr> </table> <h4>output</h4> <table class="fields"> <tr><td class="val" id="avector">avector</td><td class="desc"> <p>A kerning vector.</p> </td></tr> </table> <h4>return</h4> <p>FreeType error code. 0 means success.</p> <h4>note</h4> <p>This function always return distances in original PFR metrics units. This is unlike <code><a href="ft2-base_interface.html#ft_get_kerning">FT_Get_Kerning</a></code> with the <code><a href="ft2-base_interface.html#ft_kerning_mode">FT_KERNING_UNSCALED</a></code> mode, which always returns distances converted to outline units.</p> <p>You can use the value of the <code>x_scale</code> and <code>y_scale</code> parameters returned by <code><a href="ft2-pfr_fonts.html#ft_get_pfr_metrics">FT_Get_PFR_Metrics</a></code> to scale these to device subpixels.</p> <hr> <h2 id="ft_get_pfr_advance">FT_Get_PFR_Advance<a class="headerlink" href="#ft_get_pfr_advance" title="Permanent link">¶</a></h2> <p>Defined in FT_PFR_H (freetype/ftpfr.h).</p> <div class = "codehilite"><pre><code> FT_EXPORT( <a href="ft2-basic_types.html#ft_error">FT_Error</a> ) <b>FT_Get_PFR_Advance</b>( <a href="ft2-base_interface.html#ft_face">FT_Face</a> face, <a href="ft2-basic_types.html#ft_uint">FT_UInt</a> gindex, <a href="ft2-basic_types.html#ft_pos">FT_Pos</a> *aadvance ); </code></pre></div> <p>Return a given glyph advance, expressed in original metrics units, from a PFR font.</p> <h4>input</h4> <table class="fields"> <tr><td class="val" id="face">face</td><td class="desc"> <p>A handle to the input face.</p> </td></tr> <tr><td class="val" id="gindex">gindex</td><td class="desc"> <p>The glyph index.</p> </td></tr> </table> <h4>output</h4> <table class="fields"> <tr><td class="val" id="aadvance">aadvance</td><td class="desc"> <p>The glyph advance in metrics units.</p> </td></tr> </table> <h4>return</h4> <p>FreeType error code. 0 means success.</p> <h4>note</h4> <p>You can use the <code>x_scale</code> or <code>y_scale</code> results of <code><a href="ft2-pfr_fonts.html#ft_get_pfr_metrics">FT_Get_PFR_Metrics</a></code> to convert the advance to device subpixels (i.e., 1/64<sup>th</sup> of pixels).</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-cid_fonts.html" title="CID Fonts" 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> CID Fonts </span> </div> </a> <a href="ft2-winfnt_fonts.html" title="Window FNT Files" 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> Window FNT Files </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>