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| <center><h1>FreeType-2.3.5 API Reference</h1></center> |
| |
| <center><h1> |
| LZW Streams |
| </h1></center> |
| <h2>Synopsis</h2> |
| <table align=center cellspacing=5 cellpadding=0 border=0> |
| <tr><td></td><td><a href="#FT_Stream_OpenLZW">FT_Stream_OpenLZW</a></td><td></td><td></td><td></td><td></td><td></td><td></td></tr> |
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| <p>This section contains the declaration of LZW-specific functions.</p> |
| </td></tr></table><br> |
| <table align=center width="75%"><tr><td> |
| <h4><a name="FT_Stream_OpenLZW">FT_Stream_OpenLZW</a></h4> |
| <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><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></table><br> |
| <table align=center width="87%"><tr><td> |
| <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> |
| </td></tr></table><br> |
| <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td> |
| <table cellpadding=3 border=0> |
| <tr valign=top><td><b>stream</b></td><td> |
| <p>The target embedding stream.</p> |
| </td></tr> |
| <tr valign=top><td><b>source</b></td><td> |
| <p>The source stream.</p> |
| </td></tr> |
| </table> |
| </td></tr></table> |
| <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>return</b></em></td></tr><tr><td> |
| <p>FreeType error code. 0 means success.</p> |
| </td></tr></table> |
| <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td> |
| <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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