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| <table class="index-toc-link"><tr><td class="left">[<a href="ft2-index.html">Index</a>]</td><td class="right">[<a href="ft2-toc.html">TOC</a>]</td></tr></table> | |
| <h1>FreeType-2.6.2 API Reference</h1> | |
| <h1 id="lzw">LZW Streams</h1> | |
| <h2>Synopsis</h2> | |
| <table class="synopsis"> | |
| <tr><td><a href="#FT_Stream_OpenLZW">FT_Stream_OpenLZW</a></td><td></td><td></td><td></td></tr> | |
| </table> | |
| <p>This section contains the declaration of LZW-specific functions.</p> | |
| <div class="section"> | |
| <h3 id="FT_Stream_OpenLZW">FT_Stream_OpenLZW</h3> | |
| <p>Defined in FT_LZW_H (freetype/ftlzw.h).</p> | |
| <pre> | |
| FT_EXPORT( <a href="ft2-basic_types.html#FT_Error">FT_Error</a> ) | |
| <b>FT_Stream_OpenLZW</b>( <a href="ft2-system_interface.html#FT_Stream">FT_Stream</a> stream, | |
| <a href="ft2-system_interface.html#FT_Stream">FT_Stream</a> source ); | |
| </pre> | |
| <p>Open a new stream to parse LZW-compressed font files. This is mainly used to support the compressed ‘*.pcf.Z’ fonts that come with XFree86.</p> | |
| <h4>input</h4> | |
| <table class="fields"> | |
| <tr><td class="val" id="stream">stream</td><td class="desc"> | |
| <p>The target embedding stream.</p> | |
| </td></tr> | |
| <tr><td class="val" id="source">source</td><td class="desc"> | |
| <p>The source stream.</p> | |
| </td></tr> | |
| </table> | |
| <h4>return</h4> | |
| <p>FreeType error code. 0 means success.</p> | |
| <h4>note</h4> | |
| <p>The source stream must be opened <i>before</i> calling this function.</p> | |
| <p>Calling the internal function ‘FT_Stream_Close’ on the new stream will <b>not</b> call ‘FT_Stream_Close’ on the source stream. None of the stream objects will be released to the heap.</p> | |
| <p>The stream implementation is very basic and resets the decompression process each time seeking backwards is needed within the stream</p> | |
| <p>In certain builds of the library, LZW compression recognition is automatically handled when calling <a href="ft2-base_interface.html#FT_New_Face">FT_New_Face</a> or <a href="ft2-base_interface.html#FT_Open_Face">FT_Open_Face</a>. This means that if no font driver is capable of handling the raw compressed file, the library will try to open a LZW stream from it and re-open the face with it.</p> | |
| <p>This function may return ‘FT_Err_Unimplemented_Feature’ if your build of FreeType was not compiled with LZW support.</p> | |
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