📄 ft2-pfr_fonts.html
字号:
<!doctype html public "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><title>FreeType-2.1.10 API Reference</title><style type="text/css"> body { font-family: Verdana, Geneva, Arial, Helvetica, serif; color: #000000; background: #FFFFFF; } p { text-align: justify; } h1 { text-align: center; } li { text-align: justify; } a:link { color: #0000EF; } a:visited { color: #51188E; } a:hover { color: #FF0000; } span.keyword { font-family: monospace; text-align: left; white-space: pre; color: darkblue; } pre.colored { color: blue; } ul.empty { list-style-type: none; }</style></head><body><center><h1>FreeType-2.1.10 API Reference</h1></center><center><h1>PFR Fonts</h1></center><h2>Synopsis</h2><table align=center cellspacing=5 cellpadding=0 border=0><tr><td></td><td><a href="#FT_Get_PFR_Metrics">FT_Get_PFR_Metrics</a></td><td></td><td><a href="#FT_Get_PFR_Kerning">FT_Get_PFR_Kerning</a></td><td></td><td><a href="#FT_Get_PFR_Advance">FT_Get_PFR_Advance</a></td></tr></table><br><br><table align=center width="87%"><tr><td><p>This section contains the declaration of PFR-specific functions.</p></td></tr></table><br><table align=center width="75%"><tr><td><h4><a name="FT_Get_PFR_Metrics">FT_Get_PFR_Metrics</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_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 );</pre></table><br><table align=center width="87%"><tr><td><p>Return the outline and metrics resolutions of a given PFR face.</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><tr valign=top><td><b>face</b></td><td><p>Handle to the input face. It can be a non-PFR face.</p></td></tr></table></td></tr></table><table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>output</b></em></td></tr><tr><td><table cellpadding=3><tr valign=top><td><b>aoutline_resolution</b></td><td><p>Outline resolution. This is equivalent to `face->units_per_EM'. Optional (parameter can be NULL).</p></td></tr><tr valign=top><td><b>ametrics_resolution</b></td><td><p>Metrics resolution. This is equivalent to `outline_resolution' for non-PFR fonts. Optional (parameter can be NULL).</p></td></tr><tr valign=top><td><b>ametrics_x_scale</b></td><td><p>A 16.16 fixed-point number used to scale distance expressed in metrics units to device sub-pixels. This is equivalent to `face->size->x_scale', but for metrics only. Optional (parameter can be NULL)</p></td></tr><tr valign=top><td><b>ametrics_y_scale</b></td><td><p>Same as `ametrics_x_scale' but for the vertical direction. optional (parameter can be NULL)</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>If the input face is not a PFR, this function will return an error. However, in all cases, it will return valid values.</p></td></tr></table></td></tr></table><hr width="75%"><table align=center width="75%"><tr><td><h4><a name="FT_Get_PFR_Kerning">FT_Get_PFR_Kerning</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_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 );</pre></table><br><table align=center width="87%"><tr><td><p>Return the kerning pair corresponding to two glyphs in a PFR face. The distance is expressed in metrics units, unlike the result of <a href="ft2-base_interface.html#FT_Get_Kerning">FT_Get_Kerning</a>.</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><tr valign=top><td><b>face</b></td><td><p>A handle to the input face.</p></td></tr><tr valign=top><td><b>left</b></td><td><p>Index of the left glyph.</p></td></tr><tr valign=top><td><b>right</b></td><td><p>Index of the right glyph.</p></td></tr></table></td></tr></table><table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>output</b></em></td></tr><tr><td><table cellpadding=3><tr valign=top><td><b>avector</b></td><td><p>A kerning vector.</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>This function always return distances in original PFR metrics units. This is unlike <a href="ft2-base_interface.html#FT_Get_Kerning">FT_Get_Kerning</a> with the <a href="ft2-base_interface.html#FT_Kerning_Mode">FT_KERNING_UNSCALED</a> mode, which always returns distances converted to outline units.</p><p>You can use the value of the `x_scale' and `y_scale' parameters returned by <a href="ft2-pfr_fonts.html#FT_Get_PFR_Metrics">FT_Get_PFR_Metrics</a> to scale these to device sub-pixels.</p></td></tr></table></td></tr></table><hr width="75%"><table align=center width="75%"><tr><td><h4><a name="FT_Get_PFR_Advance">FT_Get_PFR_Advance</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_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 );</pre></table><br><table align=center width="87%"><tr><td><p>Return a given glyph advance, expressed in original metrics units, from a PFR font.</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><tr valign=top><td><b>face</b></td><td><p>A handle to the input face.</p></td></tr><tr valign=top><td><b>gindex</b></td><td><p>The glyph index.</p></td></tr></table></td></tr></table><table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>output</b></em></td></tr><tr><td><table cellpadding=3><tr valign=top><td><b>aadvance</b></td><td><p>The glyph advance in metrics units.</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>You can use the `x_scale' or `y_scale' results of <a href="ft2-pfr_fonts.html#FT_Get_PFR_Metrics">FT_Get_PFR_Metrics</a> to convert the advance to device sub-pixels (i.e. 1/64th of pixels).</p></td></tr></table></td></tr></table><hr width="75%"></body></html>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -