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| 2 | <!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/kernel/qfontdatabase.cpp:1286 -->
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| 24 | <font color="#004faf">Main Classes</font></a>
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| 31 | </td>
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| 32 | <td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QFontDatabase Class Reference</h1>
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| 33 |
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| 34 | <p>The QFontDatabase class provides information about the fonts available in the underlying window system.
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| 35 | <a href="#details">More...</a>
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| 36 | <p><tt>#include <<a href="qfontdatabase-h.html">qfontdatabase.h</a>></tt>
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| 37 | <p><a href="qfontdatabase-members.html">List of all member functions.</a>
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| 38 | <h2>Public Members</h2>
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| 39 | <ul>
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| 40 | <li class=fn><a href="#QFontDatabase"><b>QFontDatabase</b></a> ()</li>
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| 41 | <li class=fn>QStringList <a href="#families"><b>families</b></a> () const</li>
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| 42 | <li class=fn>QStringList <a href="#families-2"><b>families</b></a> ( QFont::Script script ) const</li>
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| 43 | <li class=fn>QStringList <a href="#styles"><b>styles</b></a> ( const QString & family ) const</li>
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| 44 | <li class=fn>QValueList<int> <a href="#pointSizes"><b>pointSizes</b></a> ( const QString & family, const QString & style = QString::null )</li>
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| 45 | <li class=fn>QValueList<int> <a href="#smoothSizes"><b>smoothSizes</b></a> ( const QString & family, const QString & style )</li>
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| 46 | <li class=fn>QString <a href="#styleString"><b>styleString</b></a> ( const QFont & f )</li>
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| 47 | <li class=fn>QFont <a href="#font"><b>font</b></a> ( const QString & family, const QString & style, int pointSize )</li>
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| 48 | <li class=fn>bool <a href="#isBitmapScalable"><b>isBitmapScalable</b></a> ( const QString & family, const QString & style = QString::null ) const</li>
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| 49 | <li class=fn>bool <a href="#isSmoothlyScalable"><b>isSmoothlyScalable</b></a> ( const QString & family, const QString & style = QString::null ) const</li>
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| 50 | <li class=fn>bool <a href="#isScalable"><b>isScalable</b></a> ( const QString & family, const QString & style = QString::null ) const</li>
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| 51 | <li class=fn>bool <a href="#isFixedPitch"><b>isFixedPitch</b></a> ( const QString & family, const QString & style = QString::null ) const</li>
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| 52 | <li class=fn>bool <a href="#italic"><b>italic</b></a> ( const QString & family, const QString & style ) const</li>
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| 53 | <li class=fn>bool <a href="#bold"><b>bold</b></a> ( const QString & family, const QString & style ) const</li>
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| 54 | <li class=fn>int <a href="#weight"><b>weight</b></a> ( const QString & family, const QString & style ) const</li>
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| 55 | <li class=fn>QStringList families ( bool ) const <em>(obsolete)</em></li>
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| 56 | <li class=fn>QStringList styles ( const QString & family, const QString & ) const <em>(obsolete)</em></li>
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| 57 | <li class=fn>QValueList<int> pointSizes ( const QString & family, const QString & style, const QString & ) <em>(obsolete)</em></li>
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| 58 | <li class=fn>QValueList<int> smoothSizes ( const QString & family, const QString & style, const QString & ) <em>(obsolete)</em></li>
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| 59 | <li class=fn>QFont font ( const QString & familyName, const QString & style, int pointSize, const QString & ) <em>(obsolete)</em></li>
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| 60 | <li class=fn>bool isBitmapScalable ( const QString & family, const QString & style, const QString & ) const <em>(obsolete)</em></li>
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| 61 | <li class=fn>bool isSmoothlyScalable ( const QString & family, const QString & style, const QString & ) const <em>(obsolete)</em></li>
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| 62 | <li class=fn>bool isScalable ( const QString & family, const QString & style, const QString & ) const <em>(obsolete)</em></li>
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| 63 | <li class=fn>bool isFixedPitch ( const QString & family, const QString & style, const QString & ) const <em>(obsolete)</em></li>
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| 64 | <li class=fn>bool italic ( const QString & family, const QString & style, const QString & ) const <em>(obsolete)</em></li>
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| 65 | <li class=fn>bool bold ( const QString & family, const QString & style, const QString & ) const <em>(obsolete)</em></li>
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| 66 | <li class=fn>int weight ( const QString & family, const QString & style, const QString & ) const <em>(obsolete)</em></li>
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| 67 | </ul>
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| 68 | <h2>Static Public Members</h2>
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| 69 | <ul>
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| 70 | <li class=fn>QValueList<int> <a href="#standardSizes"><b>standardSizes</b></a> ()</li>
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| 71 | <li class=fn>QString <a href="#scriptName"><b>scriptName</b></a> ( QFont::Script script )</li>
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| 72 | <li class=fn>QString <a href="#scriptSample"><b>scriptSample</b></a> ( QFont::Script script )</li>
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| 73 | </ul>
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| 74 | <hr><a name="details"></a><h2>Detailed Description</h2>
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| 75 |
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| 76 |
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| 77 | The QFontDatabase class provides information about the fonts available in the underlying window system.
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| 78 | <p>
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| 79 |
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| 80 | <p> The most common uses of this class are to query the database for
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| 81 | the list of font <a href="#families">families</a>() and for the <a href="#pointSizes">pointSizes</a>() and <a href="#styles">styles</a>()
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| 82 | that are available for each family. An alternative to pointSizes()
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| 83 | is <a href="#smoothSizes">smoothSizes</a>() which returns the sizes at which a given family
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| 84 | and style will look attractive.
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| 85 | <p> If the font family is available from two or more foundries the
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| 86 | foundry name is included in the family name, e.g. "Helvetica
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| 87 | [Adobe]" and "Helvetica [Cronyx]". When you specify a family you
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| 88 | can either use the old hyphenated Qt 2.x "foundry-family" format,
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| 89 | e.g. "Cronyx-Helvetica", or the new bracketed Qt 3.x "family
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| 90 | [foundry]" format e.g. "Helvetica [Cronyx]". If the family has a
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| 91 | foundry it is always returned, e.g. by families(), using the
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| 92 | bracketed format.
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| 93 | <p> The <a href="#font">font</a>() function returns a <a href="qfont.html">QFont</a> given a family, style and
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| 94 | point size.
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| 95 | <p> A family and style combination can be checked to see if it is
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| 96 | <a href="#italic">italic</a>() or <a href="#bold">bold</a>(), and to retrieve its <a href="#weight">weight</a>(). Similarly we can
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| 97 | call <a href="#isBitmapScalable">isBitmapScalable</a>(), <a href="#isSmoothlyScalable">isSmoothlyScalable</a>(), <a href="#isScalable">isScalable</a>() and
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| 98 | <a href="#isFixedPitch">isFixedPitch</a>().
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| 99 | <p> A text version of a style is given by <a href="#styleString">styleString</a>().
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| 100 | <p> The QFontDatabase class also supports some static functions, for
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| 101 | example, <a href="#standardSizes">standardSizes</a>(). You can retrieve the Unicode 3.0
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| 102 | description of a <a href="qfont.html#Script-enum">script</a> using
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| 103 | <a href="#scriptName">scriptName</a>(), and a sample of characters in a script with
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| 104 | <a href="#scriptSample">scriptSample</a>().
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| 105 | <p> Example:
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| 106 | <pre>
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| 107 | #include <<a href="qapplication-h.html">qapplication.h</a>>
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| 108 | #include <<a href="qfontdatabase-h.html">qfontdatabase.h</a>>
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| 109 | #include <else.h>
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| 110 |
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| 111 | int main( int argc, char **argv )
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| 112 | {
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| 113 | <a href="qapplication.html">QApplication</a> app( argc, argv );
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| 114 | QFontDatabase fdb;
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| 115 | <a href="qstringlist.html">QStringList</a> families = fdb.<a href="#families">families</a>();
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| 116 | for ( QStringList::Iterator f = families.<a href="qvaluelist.html#begin">begin</a>(); f != families.<a href="qvaluelist.html#end">end</a>(); ++f ) {
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| 117 | <a href="qstring.html">QString</a> family = *f;
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| 118 | <a href="qapplication.html#qDebug">qDebug</a>( family );
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| 119 | <a href="qstringlist.html">QStringList</a> styles = fdb.<a href="#styles">styles</a>( family );
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| 120 | for ( QStringList::Iterator s = styles.<a href="qvaluelist.html#begin">begin</a>(); s != styles.<a href="qvaluelist.html#end">end</a>(); ++s ) {
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| 121 | <a href="qstring.html">QString</a> style = *s;
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| 122 | <a href="qstring.html">QString</a> dstyle = "\t" + style + " (";
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| 123 | <a href="qvaluelist.html">QValueList</a><int> smoothies = fdb.<a href="#smoothSizes">smoothSizes</a>( family, style );
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| 124 | for ( QValueList<int>::Iterator points = smoothies.<a href="qvaluelist.html#begin">begin</a>();
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| 125 | points != smoothies.<a href="qvaluelist.html#end">end</a>(); ++points ) {
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| 126 | dstyle += QString::<a href="qstring.html#number">number</a>( *points ) + " ";
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| 127 | }
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| 128 | dstyle = dstyle.<a href="qstring.html#left">left</a>( dstyle.<a href="qstring.html#length">length</a>() - 1 ) + ")";
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| 129 | <a href="qapplication.html#qDebug">qDebug</a>( dstyle );
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| 130 | }
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| 131 | }
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| 132 | return 0;
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| 133 | }
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| 134 | </pre>
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| 135 |
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| 136 | This example gets the list of font families, then the list of
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| 137 | styles for each family and the point sizes that are available for
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| 138 | each family/style combination.
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| 139 | <p>See also <a href="environment.html">Environment Classes</a> and <a href="graphics.html">Graphics Classes</a>.
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| 140 |
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| 141 | <hr><h2>Member Function Documentation</h2>
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| 142 | <h3 class=fn><a name="QFontDatabase"></a>QFontDatabase::QFontDatabase ()
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| 143 | </h3>
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| 144 | Creates a font database object.
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| 145 |
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| 146 | <h3 class=fn>bool <a name="bold"></a>QFontDatabase::bold ( const <a href="qstring.html">QString</a> & family, const <a href="qstring.html">QString</a> & style ) const
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| 147 | </h3>
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| 148 | Returns TRUE if the font that has family <em>family</em> and style <em>style</em> is bold; otherwise returns FALSE.
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| 149 | <p> <p>See also <a href="#italic">italic</a>() and <a href="#weight">weight</a>().
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| 150 |
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| 151 | <h3 class=fn>bool <a name="bold-2"></a>QFontDatabase::bold ( const <a href="qstring.html">QString</a> & family, const <a href="qstring.html">QString</a> & style, const <a href="qstring.html">QString</a> & ) const
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| 152 | </h3>
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| 153 | <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
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| 154 | <p>
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| 155 |
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| 156 | <h3 class=fn><a href="qstringlist.html">QStringList</a> <a name="families"></a>QFontDatabase::families () const
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| 157 | </h3> Returns a sorted list of the names of the available font families.
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| 158 | <p> If a family exists in several foundries, the returned name for
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| 159 | that font is in the form "family [foundry]". Examples: "Times
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| 160 | [Adobe]", "Times [Cronyx]", "Palatino".
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| 161 |
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| 162 | <h3 class=fn><a href="qstringlist.html">QStringList</a> <a name="families-2"></a>QFontDatabase::families ( <a href="qfont.html#Script-enum">QFont::Script</a> script ) const
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| 163 | </h3>
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| 164 | This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
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| 165 | <p> Returns a sorted list of the available font families which support
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| 166 | the Unicode script <em>script</em>.
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| 167 | <p> If a family exists in several foundries, the returned name for
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| 168 | that font is in the form "family [foundry]". Examples: "Times
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| 169 | [Adobe]", "Times [Cronyx]", "Palatino".
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| 170 |
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| 171 | <h3 class=fn><a href="qstringlist.html">QStringList</a> <a name="families-3"></a>QFontDatabase::families ( bool ) const
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| 172 | </h3>
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| 173 | <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
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| 174 | <p>
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| 175 |
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| 176 | <h3 class=fn><a href="qfont.html">QFont</a> <a name="font"></a>QFontDatabase::font ( const <a href="qstring.html">QString</a> & family, const <a href="qstring.html">QString</a> & style, int pointSize )
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| 177 | </h3>
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| 178 | Returns a <a href="qfont.html">QFont</a> object that has family <em>family</em>, style <em>style</em>
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| 179 | and point size <em>pointSize</em>. If no matching font could be created,
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| 180 | a QFont object that uses the application's default font is
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| 181 | returned.
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| 182 |
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| 183 | <h3 class=fn><a href="qfont.html">QFont</a> <a name="font-2"></a>QFontDatabase::font ( const <a href="qstring.html">QString</a> & familyName, const <a href="qstring.html">QString</a> & style, int pointSize, const <a href="qstring.html">QString</a> & )
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| 184 | </h3>
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| 185 | <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
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| 186 | <p>
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| 187 |
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| 188 | <h3 class=fn>bool <a name="isBitmapScalable"></a>QFontDatabase::isBitmapScalable ( const <a href="qstring.html">QString</a> & family, const <a href="qstring.html">QString</a> & style = QString::null ) const
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| 189 | </h3>
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| 190 | Returns TRUE if the font that has family <em>family</em> and style <em>style</em> is a scalable bitmap font; otherwise returns FALSE. Scaling
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| 191 | a bitmap font usually produces an unattractive hardly readable
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| 192 | result, because the pixels of the font are scaled. If you need to
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| 193 | scale a bitmap font it is better to scale it to one of the fixed
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| 194 | sizes returned by <a href="#smoothSizes">smoothSizes</a>().
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| 195 | <p> <p>See also <a href="#isScalable">isScalable</a>() and <a href="#isSmoothlyScalable">isSmoothlyScalable</a>().
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| 196 |
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| 197 | <h3 class=fn>bool <a name="isBitmapScalable-2"></a>QFontDatabase::isBitmapScalable ( const <a href="qstring.html">QString</a> & family, const <a href="qstring.html">QString</a> & style, const <a href="qstring.html">QString</a> & ) const
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| 198 | </h3>
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| 199 | <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
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| 200 | <p>
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| 201 |
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| 202 | <h3 class=fn>bool <a name="isFixedPitch"></a>QFontDatabase::isFixedPitch ( const <a href="qstring.html">QString</a> & family, const <a href="qstring.html">QString</a> & style = QString::null ) const
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| 203 | </h3>
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| 204 | Returns TRUE if the font that has family <em>family</em> and style <em>style</em> is fixed pitch; otherwise returns FALSE.
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| 205 |
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| 206 | <h3 class=fn>bool <a name="isFixedPitch-2"></a>QFontDatabase::isFixedPitch ( const <a href="qstring.html">QString</a> & family, const <a href="qstring.html">QString</a> & style, const <a href="qstring.html">QString</a> & ) const
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| 207 | </h3>
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| 208 | <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
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| 209 | <p>
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| 210 |
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| 211 | <h3 class=fn>bool <a name="isScalable"></a>QFontDatabase::isScalable ( const <a href="qstring.html">QString</a> & family, const <a href="qstring.html">QString</a> & style = QString::null ) const
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| 212 | </h3>
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| 213 | Returns TRUE if the font that has family <em>family</em> and style <em>style</em> is scalable; otherwise returns FALSE.
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| 214 | <p> <p>See also <a href="#isBitmapScalable">isBitmapScalable</a>() and <a href="#isSmoothlyScalable">isSmoothlyScalable</a>().
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| 215 |
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| 216 | <h3 class=fn>bool <a name="isScalable-2"></a>QFontDatabase::isScalable ( const <a href="qstring.html">QString</a> & family, const <a href="qstring.html">QString</a> & style, const <a href="qstring.html">QString</a> & ) const
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| 217 | </h3>
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| 218 | <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
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| 219 | <p>
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| 220 |
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| 221 | <h3 class=fn>bool <a name="isSmoothlyScalable"></a>QFontDatabase::isSmoothlyScalable ( const <a href="qstring.html">QString</a> & family, const <a href="qstring.html">QString</a> & style = QString::null ) const
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| 222 | </h3>
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| 223 | Returns TRUE if the font that has family <em>family</em> and style <em>style</em> is smoothly scalable; otherwise returns FALSE. If this
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| 224 | function returns TRUE, it's safe to scale this font to any size,
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| 225 | and the result will always look attractive.
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| 226 | <p> <p>See also <a href="#isScalable">isScalable</a>() and <a href="#isBitmapScalable">isBitmapScalable</a>().
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| 227 |
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| 228 | <h3 class=fn>bool <a name="isSmoothlyScalable-2"></a>QFontDatabase::isSmoothlyScalable ( const <a href="qstring.html">QString</a> & family, const <a href="qstring.html">QString</a> & style, const <a href="qstring.html">QString</a> & ) const
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| 229 | </h3>
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| 230 | <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
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| 231 | <p>
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| 232 |
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| 233 | <h3 class=fn>bool <a name="italic"></a>QFontDatabase::italic ( const <a href="qstring.html">QString</a> & family, const <a href="qstring.html">QString</a> & style ) const
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| 234 | </h3>
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| 235 | Returns TRUE if the font that has family <em>family</em> and style <em>style</em> is italic; otherwise returns FALSE.
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| 236 | <p> <p>See also <a href="#weight">weight</a>() and <a href="#bold">bold</a>().
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| 237 |
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| 238 | <h3 class=fn>bool <a name="italic-2"></a>QFontDatabase::italic ( const <a href="qstring.html">QString</a> & family, const <a href="qstring.html">QString</a> & style, const <a href="qstring.html">QString</a> & ) const
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| 239 | </h3>
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| 240 | <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
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| 241 | <p>
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| 242 |
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| 243 | <h3 class=fn><a href="qvaluelist.html">QValueList</a><int> <a name="pointSizes"></a>QFontDatabase::pointSizes ( const <a href="qstring.html">QString</a> & family, const <a href="qstring.html">QString</a> & style = QString::null )
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| 244 | </h3>
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| 245 | Returns a list of the point sizes available for the font that has
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| 246 | family <em>family</em> and style <em>style</em>. The list may be empty.
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| 247 | <p> <p>See also <a href="#smoothSizes">smoothSizes</a>() and <a href="#standardSizes">standardSizes</a>().
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| 248 |
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| 249 | <h3 class=fn><a href="qvaluelist.html">QValueList</a><int> <a name="pointSizes-2"></a>QFontDatabase::pointSizes ( const <a href="qstring.html">QString</a> & family, const <a href="qstring.html">QString</a> & style, const <a href="qstring.html">QString</a> & )
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| 250 | </h3>
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| 251 | <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
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| 252 | <p>
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| 253 |
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| 254 | <h3 class=fn><a href="qstring.html">QString</a> <a name="scriptName"></a>QFontDatabase::scriptName ( <a href="qfont.html#Script-enum">QFont::Script</a> script )<tt> [static]</tt>
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| 255 | </h3>
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| 256 | Returns a string that gives a default description of the <em>script</em>
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| 257 | (e.g. for displaying to the user in a dialog). The name matches
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| 258 | the name of the script as defined by the Unicode 3.0 standard.
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| 259 | <p> <p>See also <a href="qfont.html#Script-enum">QFont::Script</a>.
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| 260 |
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| 261 | <h3 class=fn><a href="qstring.html">QString</a> <a name="scriptSample"></a>QFontDatabase::scriptSample ( <a href="qfont.html#Script-enum">QFont::Script</a> script )<tt> [static]</tt>
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| 262 | </h3>
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| 263 | Returns a string with sample characters from <em>script</em>.
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| 264 | <p> <p>See also <a href="qfont.html#Script-enum">QFont::Script</a>.
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| 265 |
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| 266 | <h3 class=fn><a href="qvaluelist.html">QValueList</a><int> <a name="smoothSizes"></a>QFontDatabase::smoothSizes ( const <a href="qstring.html">QString</a> & family, const <a href="qstring.html">QString</a> & style )
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| 267 | </h3>
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| 268 | Returns the point sizes of a font that has family <em>family</em> and
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| 269 | style <em>style</em> that will look attractive. The list may be empty.
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| 270 | For non-scalable fonts and bitmap scalable fonts, this function
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| 271 | is equivalent to <a href="#pointSizes">pointSizes</a>().
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| 272 | <p> <p>See also <a href="#pointSizes">pointSizes</a>() and <a href="#standardSizes">standardSizes</a>().
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| 273 |
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| 274 | <h3 class=fn><a href="qvaluelist.html">QValueList</a><int> <a name="smoothSizes-2"></a>QFontDatabase::smoothSizes ( const <a href="qstring.html">QString</a> & family, const <a href="qstring.html">QString</a> & style, const <a href="qstring.html">QString</a> & )
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| 275 | </h3>
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| 276 | <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
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| 277 | <p>
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| 278 |
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| 279 | <h3 class=fn><a href="qvaluelist.html">QValueList</a><int> <a name="standardSizes"></a>QFontDatabase::standardSizes ()<tt> [static]</tt>
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| 280 | </h3>
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| 281 | Returns a list of standard font sizes.
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| 282 | <p> <p>See also <a href="#smoothSizes">smoothSizes</a>() and <a href="#pointSizes">pointSizes</a>().
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| 283 |
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| 284 | <h3 class=fn><a href="qstring.html">QString</a> <a name="styleString"></a>QFontDatabase::styleString ( const <a href="qfont.html">QFont</a> & f )
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| 285 | </h3>
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| 286 | Returns a string that describes the style of the font <em>f</em>. For
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| 287 | example, "Bold Italic", "Bold", "Italic" or "Normal". An empty
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| 288 | string may be returned.
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| 289 |
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| 290 | <h3 class=fn><a href="qstringlist.html">QStringList</a> <a name="styles"></a>QFontDatabase::styles ( const <a href="qstring.html">QString</a> & family ) const
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| 291 | </h3>
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| 292 | Returns a list of the styles available for the font family <em>family</em>. Some example styles: "Light", "Light Italic", "Bold",
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| 293 | "Oblique", "Demi". The list may be empty.
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| 294 |
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| 295 | <h3 class=fn><a href="qstringlist.html">QStringList</a> <a name="styles-2"></a>QFontDatabase::styles ( const <a href="qstring.html">QString</a> & family, const <a href="qstring.html">QString</a> & ) const
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| 296 | </h3>
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| 297 | <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
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| 298 | <p>
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| 299 |
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| 300 | <h3 class=fn>int <a name="weight"></a>QFontDatabase::weight ( const <a href="qstring.html">QString</a> & family, const <a href="qstring.html">QString</a> & style ) const
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| 301 | </h3>
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| 302 | Returns the weight of the font that has family <em>family</em> and style
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| 303 | <em>style</em>. If there is no such family and style combination,
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| 304 | returns -1.
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| 305 | <p> <p>See also <a href="#italic">italic</a>() and <a href="#bold">bold</a>().
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| 306 |
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| 307 | <h3 class=fn>int <a name="weight-2"></a>QFontDatabase::weight ( const <a href="qstring.html">QString</a> & family, const <a href="qstring.html">QString</a> & style, const <a href="qstring.html">QString</a> & ) const
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| 308 | </h3>
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| 309 | <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
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| 310 | <p>
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| 311 |
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| 312 | <!-- eof -->
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| 313 | <hr><p>
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| 314 | This file is part of the <a href="index.html">Qt toolkit</a>.
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| 315 | Copyright © 1995-2007
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| 316 | <a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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| 317 | <table width=100% cellspacing=0 border=0><tr>
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| 318 | <td>Copyright © 2007
|
|---|
| 319 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
|
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| 320 | <td align=right><div align=right>Qt 3.3.8</div>
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| 321 | </table></div></address></body>
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| 322 | </html>
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