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<title>Crystal Space 1.2.1: iFont Struct Reference (Crystal Space 1.2.1 Public API Reference)</title>
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<h1>iFont Struct Reference<br>
<small>
[<a class="el" href="group__gfx2d.html">2D</a>]</small>
</h1><!-- doxytag: class="iFont" --><!-- doxytag: inherits="iBase" -->A font object.
<a href="#_details">More...</a>
<p>
<code>#include <<a class="el" href="fontserv_8h-source.html">ivideo/fontserv.h</a>></code>
<p>
<div class="dynheader">
Inheritance diagram for iFont:</div>
<div class="dynsection">
<p><center><img src="structiFont__inherit__graph.png" border="0" usemap="#iFont__inherit__map" alt="Inheritance graph"></center>
<map name="iFont__inherit__map">
<area shape="rect" href="structiBase.html" title="This is the basic interface: all other interfaces should be derived from this one..." alt="" coords="5,7,61,33"></map>
<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center></div>
<p>
<a href="structiFont-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="structiFont.html#f9c910f8ebbce7f38564f95e35ca3f3a">AddDeleteCallback</a> (<a class="el" href="structiFontDeleteNotify.html">iFontDeleteNotify</a> *func)=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Add a font delete notification callback routine. <a href="#f9c910f8ebbce7f38564f95e35ca3f3a"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="structiFont.html#4bbbbf7fac4f9eaa28e1bfaa7c30cdaf">GetAscent</a> ()=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the font's ascent in pixels. <a href="#4bbbbf7fac4f9eaa28e1bfaa7c30cdaf"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="structiFont.html#b00c29d4ed0a66d85ee8d0768b7e24ec">GetDescent</a> ()=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the font's descent in pixels. <a href="#b00c29d4ed0a66d85ee8d0768b7e24ec"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="structiFont.html#a128fdd153e45aba7e160074805c7529">GetDimensions</a> (const char *text, int &oW, int &oH, int &desc)=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return the width and height of text written with this font. <a href="#a128fdd153e45aba7e160074805c7529"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="structiFont.html#e3e9dc994230ef8cf801812393af9dbe">GetDimensions</a> (const char *text, int &oW, int &oH)=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return the width and height of text written with this font. <a href="#e3e9dc994230ef8cf801812393af9dbe"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <a class="el" href="classcsPtr.html">csPtr</a><br>
< <a class="el" href="structiDataBuffer.html">iDataBuffer</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="structiFont.html#2069806518c2a4147dd69e6762984ebf">GetGlyphAlphaBitmap</a> (<a class="el" href="group__util.html#g47e911f87ff568b2779f26cf226f5070">utf32_char</a> c, <a class="el" href="structcsBitmapMetrics.html">csBitmapMetrics</a> &metrics)=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return a pointer to a bitmap containing the alpha bitmap for the rendered character. <a href="#2069806518c2a4147dd69e6762984ebf"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <a class="el" href="classcsPtr.html">csPtr</a><br>
< <a class="el" href="structiDataBuffer.html">iDataBuffer</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="structiFont.html#dcb081947e8bb9ae67d9d005f5a3010b">GetGlyphBitmap</a> (<a class="el" href="group__util.html#g47e911f87ff568b2779f26cf226f5070">utf32_char</a> c, <a class="el" href="structcsBitmapMetrics.html">csBitmapMetrics</a> &metrics)=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return a pointer to a bitmap containing a rendered character. <a href="#dcb081947e8bb9ae67d9d005f5a3010b"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="structiFont.html#fb2c2497e228d4275e020adec482295d">GetGlyphMetrics</a> (<a class="el" href="group__util.html#g47e911f87ff568b2779f26cf226f5070">utf32_char</a> c, <a class="el" href="structcsGlyphMetrics.html">csGlyphMetrics</a> &metrics)=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return the metrics of a glyph. <a href="#fb2c2497e228d4275e020adec482295d"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="structiFont.html#9363065c91027f6d5d290f45e1e050ba">GetLength</a> (const char *text, int maxwidth)=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Determine how many characters from this string can be written without exceeding given width (in pixels). <a href="#9363065c91027f6d5d290f45e1e050ba"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="structiFont.html#56460a940e03eefa9e35f945674be3f1">GetMaxSize</a> (int &oW, int &oH)=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return the maximum width and height of a single glyph, in pixels. <a href="#56460a940e03eefa9e35f945674be3f1"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual float </td><td class="memItemRight" valign="bottom"><a class="el" href="structiFont.html#b90049387efb00e209f55b7cb80c9acc">GetSize</a> ()=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Query current font size in Point. <a href="#b90049387efb00e209f55b7cb80c9acc"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="structiFont.html#b2b0fce727edc86c57fed4e78e9c88fd">GetTextHeight</a> ()=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Gets the default baseline to baseline distance between two lines of text using this font. <a href="#b2b0fce727edc86c57fed4e78e9c88fd"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="structiFont.html#e2a8c21b9c330cb73bd9b9946106cb64">GetUnderlinePosition</a> ()=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">When displaying or rendering underlined text, this value corresponds to the vertical position, relative to the baseline, of the underline bar. <a href="#e2a8c21b9c330cb73bd9b9946106cb64"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="structiFont.html#b4d0f52ab37e5f43bb71e833b8ebfc0a">GetUnderlineThickness</a> ()=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">When displaying or rendering underlined text, this value corresponds to the vertical thickness of the underline bar/rectangle. <a href="#b4d0f52ab37e5f43bb71e833b8ebfc0a"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="structiFont.html#9775d91486a124cca446428aa4db4f3a">HasGlyph</a> (<a class="el" href="group__util.html#g47e911f87ff568b2779f26cf226f5070">utf32_char</a> c)=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns whether a specific glyph is present in this font. <a href="#9775d91486a124cca446428aa4db4f3a"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="structiFont.html#bd5661f5d0bc73d1bdc74b4c9203e151">RemoveDeleteCallback</a> (<a class="el" href="structiFontDeleteNotify.html">iFontDeleteNotify</a> *func)=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Remove a font delete notification callback. <a href="#bd5661f5d0bc73d1bdc74b4c9203e151"></a><br></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
A font object.
<p>
Objects of this class are used by canvas driver to paint glyphs.<p>
Main creators of instances implementing this interface:<ul>
<li><a class="el" href="structiFontServer.html#05eee2a2a263d32ac5977eb5890fab6e" title="Load a font by name.">iFontServer::LoadFont()</a> </li></ul>
<p>Definition at line <a class="el" href="fontserv_8h-source.html#l00112">112</a> of file <a class="el" href="fontserv_8h-source.html">fontserv.h</a>.</p>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="f9c910f8ebbce7f38564f95e35ca3f3a"></a><!-- doxytag: member="iFont::AddDeleteCallback" ref="f9c910f8ebbce7f38564f95e35ca3f3a" args="(iFontDeleteNotify *func)=0" -->
<div class="memitem">
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<td class="memname">virtual void iFont::AddDeleteCallback </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structiFontDeleteNotify.html">iFontDeleteNotify</a> * </td>
<td class="paramname"> <em>func</em> </td>
<td> ) </td>
<td width="100%"><code> [pure virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Add a font delete notification callback routine.
<p>
This routine will be called from font destructor, with the font instance being passed as argument. Another parameter is provided to supply additional data.
</div>
</div><p>
<a class="anchor" name="4bbbbf7fac4f9eaa28e1bfaa7c30cdaf"></a><!-- doxytag: member="iFont::GetAscent" ref="4bbbbf7fac4f9eaa28e1bfaa7c30cdaf" args="()=0" -->
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<td class="memname">virtual int iFont::GetAscent </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td width="100%"><code> [pure virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Get the font's ascent in pixels.
<p>
Returns a value <0 if an error occured. The sum of descent and ascent must not necessarily equal the maximum height.
<p>Referenced by <a class="el" href="draw__text_8h-source.html#l00045">csG2DDrawText< Tpixel, Tpixmixer1, Tpixmixer2, Tpixmixer3 >::DrawText()</a>.</p>
</div>
</div><p>
<a class="anchor" name="b00c29d4ed0a66d85ee8d0768b7e24ec"></a><!-- doxytag: member="iFont::GetDescent" ref="b00c29d4ed0a66d85ee8d0768b7e24ec" args="()=0" -->
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<td class="memname">virtual int iFont::GetDescent </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td width="100%"><code> [pure virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Get the font's descent in pixels.
<p>
Returns a value <0 if an error occured. The sum of descent and ascent must not necessarily equal the maximum height.
</div>
</div><p>
<a class="anchor" name="a128fdd153e45aba7e160074805c7529"></a><!-- doxytag: member="iFont::GetDimensions" ref="a128fdd153e45aba7e160074805c7529" args="(const char *text, int &oW, int &oH, int &desc)=0" -->
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<td class="memname">virtual void iFont::GetDimensions </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"> <em>text</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int & </td>
<td class="paramname"> <em>oW</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int & </td>
<td class="paramname"> <em>oH</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int & </td>
<td class="paramname"> <em>desc</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"><code> [pure virtual]</code></td>
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<div class="memdoc">
<p>
Return the width and height of text written with this font.
<p>
desc gives the maximum descender.
</div>
</div><p>
<a class="anchor" name="e3e9dc994230ef8cf801812393af9dbe"></a><!-- doxytag: member="iFont::GetDimensions" ref="e3e9dc994230ef8cf801812393af9dbe" args="(const char *text, int &oW, int &oH)=0" -->
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<td class="memname">virtual void iFont::GetDimensions </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"> <em>text</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int & </td>
<td class="paramname"> <em>oW</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int & </td>
<td class="paramname"> <em>oH</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"><code> [pure virtual]</code></td>
</tr>
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<div class="memdoc">
<p>
Return the width and height of text written with this font.
<p>
</div>
</div><p>
<a class="anchor" name="2069806518c2a4147dd69e6762984ebf"></a><!-- doxytag: member="iFont::GetGlyphAlphaBitmap" ref="2069806518c2a4147dd69e6762984ebf" args="(utf32_char c, csBitmapMetrics &metrics)=0" -->
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<td class="memname">virtual <a class="el" href="classcsPtr.html">csPtr</a><<a class="el" href="structiDataBuffer.html">iDataBuffer</a>> iFont::GetGlyphAlphaBitmap </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__util.html#g47e911f87ff568b2779f26cf226f5070">utf32_char</a> </td>
<td class="paramname"> <em>c</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structcsBitmapMetrics.html">csBitmapMetrics</a> & </td>
<td class="paramname"> <em>metrics</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"><code> [pure virtual]</code></td>
</tr>
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</div>
<div class="memdoc">
<p>
Return a pointer to a bitmap containing the alpha bitmap for the rendered character.
<p>
Returns 0 if the glyph can't be retrieved.
</div>
</div><p>
<a class="anchor" name="dcb081947e8bb9ae67d9d005f5a3010b"></a><!-- doxytag: member="iFont::GetGlyphBitmap" ref="dcb081947e8bb9ae67d9d005f5a3010b" args="(utf32_char c, csBitmapMetrics &metrics)=0" -->
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<td class="memname">virtual <a class="el" href="classcsPtr.html">csPtr</a><<a class="el" href="structiDataBuffer.html">iDataBuffer</a>> iFont::GetGlyphBitmap </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__util.html#g47e911f87ff568b2779f26cf226f5070">utf32_char</a> </td>
<td class="paramname"> <em>c</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structcsBitmapMetrics.html">csBitmapMetrics</a> & </td>
<td class="paramname"> <em>metrics</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"><code> [pure virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Return a pointer to a bitmap containing a rendered character.
<p>
Returns 0 if the glyph can't be retrieved.
</div>
</div><p>
<a class="anchor" name="fb2c2497e228d4275e020adec482295d"></a><!-- doxytag: member="iFont::GetGlyphMetrics" ref="fb2c2497e228d4275e020adec482295d" args="(utf32_char c, csGlyphMetrics &metrics)=0" -->
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<td class="memname">virtual bool iFont::GetGlyphMetrics </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__util.html#g47e911f87ff568b2779f26cf226f5070">utf32_char</a> </td>
<td class="paramname"> <em>c</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structcsGlyphMetrics.html">csGlyphMetrics</a> & </td>
<td class="paramname"> <em>metrics</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"><code> [pure virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Return the metrics of a glyph.
<p>
</div>
</div><p>
<a class="anchor" name="9363065c91027f6d5d290f45e1e050ba"></a><!-- doxytag: member="iFont::GetLength" ref="9363065c91027f6d5d290f45e1e050ba" args="(const char *text, int maxwidth)=0" -->
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<td class="memname">virtual int iFont::GetLength </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"> <em>text</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>maxwidth</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"><code> [pure virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Determine how many characters from this string can be written without exceeding given width (in pixels).
<p>
</div>
</div><p>
<a class="anchor" name="56460a940e03eefa9e35f945674be3f1"></a><!-- doxytag: member="iFont::GetMaxSize" ref="56460a940e03eefa9e35f945674be3f1" args="(int &oW, int &oH)=0" -->
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<td class="memname">virtual void iFont::GetMaxSize </td>
<td>(</td>
<td class="paramtype">int & </td>
<td class="paramname"> <em>oW</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int & </td>
<td class="paramname"> <em>oH</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"><code> [pure virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Return the maximum width and height of a single glyph, in pixels.
<p>
Return -1 if it could not be determined.
</div>
</div><p>
<a class="anchor" name="b90049387efb00e209f55b7cb80c9acc"></a><!-- doxytag: member="iFont::GetSize" ref="b90049387efb00e209f55b7cb80c9acc" args="()=0" -->
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<td class="memname">virtual float iFont::GetSize </td>
<td>(</td>
<td class="paramname"> </td>
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Query current font size in Point.
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If server does not support rescalable fonts, this method returns 0.
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<a class="anchor" name="b2b0fce727edc86c57fed4e78e9c88fd"></a><!-- doxytag: member="iFont::GetTextHeight" ref="b2b0fce727edc86c57fed4e78e9c88fd" args="()=0" -->
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<td class="memname">virtual int iFont::GetTextHeight </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td width="100%"><code> [pure virtual]</code></td>
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<p>
Gets the default baseline to baseline distance between two lines of text using this font.
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<a class="anchor" name="e2a8c21b9c330cb73bd9b9946106cb64"></a><!-- doxytag: member="iFont::GetUnderlinePosition" ref="e2a8c21b9c330cb73bd9b9946106cb64" args="()=0" -->
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<td class="memname">virtual int iFont::GetUnderlinePosition </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td width="100%"><code> [pure virtual]</code></td>
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<p>
When displaying or rendering underlined text, this value corresponds to the vertical position, relative to the baseline, of the underline bar.
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It is positive if the underline it is below the baseline. The position returned is to the top of the underline bar/rectagle.
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<a class="anchor" name="b4d0f52ab37e5f43bb71e833b8ebfc0a"></a><!-- doxytag: member="iFont::GetUnderlineThickness" ref="b4d0f52ab37e5f43bb71e833b8ebfc0a" args="()=0" -->
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<td class="memname">virtual int iFont::GetUnderlineThickness </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td width="100%"><code> [pure virtual]</code></td>
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<p>
When displaying or rendering underlined text, this value corresponds to the vertical thickness of the underline bar/rectangle.
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<a class="anchor" name="9775d91486a124cca446428aa4db4f3a"></a><!-- doxytag: member="iFont::HasGlyph" ref="9775d91486a124cca446428aa4db4f3a" args="(utf32_char c)=0" -->
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<td class="memname">virtual bool iFont::HasGlyph </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__util.html#g47e911f87ff568b2779f26cf226f5070">utf32_char</a> </td>
<td class="paramname"> <em>c</em> </td>
<td> ) </td>
<td width="100%"><code> [pure virtual]</code></td>
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<p>
Returns whether a specific glyph is present in this font.
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<a class="anchor" name="bd5661f5d0bc73d1bdc74b4c9203e151"></a><!-- doxytag: member="iFont::RemoveDeleteCallback" ref="bd5661f5d0bc73d1bdc74b4c9203e151" args="(iFontDeleteNotify *func)=0" -->
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<td class="memname">virtual bool iFont::RemoveDeleteCallback </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structiFontDeleteNotify.html">iFontDeleteNotify</a> * </td>
<td class="paramname"> <em>func</em> </td>
<td> ) </td>
<td width="100%"><code> [pure virtual]</code></td>
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Remove a font delete notification callback.
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<hr>The documentation for this struct was generated from the following file:<ul>
<li>ivideo/<a class="el" href="fontserv_8h-source.html">fontserv.h</a></ul>
<hr size="1"><address><small>Generated for Crystal Space 1.2.1 by
<a href="http://www.doxygen.org/index.html">doxygen</a> 1.5.3
</small></address> </div></body> </html>
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Mandriva
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