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<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta name="book" content="ActionScript&nbsp;3.0&nbsp;Language&nbsp;and&nbsp;Components&nbsp;Reference"><link rel="stylesheet" href="../../../style.css" type="text/css" media="screen"><link rel="stylesheet" href="../../../print.css" type="text/css" media="print"><link rel="stylesheet" href="../../../override.css" type="text/css"><meta name="keywords" content="FontMetrics,flash.text.engine.FontMetrics,ALL,ALL_BUT_LAST,ALL_INCLUDING_LAST,ANY,ASCENT,AUTO,AUTO,AUTO,BOLD,CAPS,CAPS_AND_SMALL_CAPS,CENTER,CFF,COMMON,COMPLETE,DECIMAL,DEFAULT,DEFAULT,DEFAULT,DESCENT,DEVICE,EMBEDDED_CFF,EMERGENCY,END,EXOTIC,GRAPHIC_ELEMENT,HORIZONTAL_STEM,IDEOGRAPHIC_BOTTOM,IDEOGRAPHIC_CENTER,IDEOGRAPHIC_TOP,INSUFFICIENT_WIDTH,INVALID,ITALIC,LINING,LOWERCASE,MAX_LINE_WIDTH,MINIMUM,NONE,NONE,NONE,NORMAL,NORMAL,NORMAL,OFF,OLD_STYLE,ON,POSSIBLY_INVALID,PRIORITIZE_LEAST_ADJUSTMENT,PROPORTIONAL,PUSH_IN_KINSOKU,PUSH_OUT_ONLY,ROMAN,ROTATE_0,ROTATE_180,ROTATE_270,ROTATE_90,SMALL_CAPS,START,STATIC,SUCCESS,TABULAR,TITLE,UNCOMMON,UNJUSTIFIED,UPPERCASE,USE_DOMINANT_BASELINE,VALID,alignmentBaseline,alignment,alpha,applyNonLinearFontScaling,ascent,atomCount,baselineFontDescription,baselineFontSize,baselineShift,baselineZero,bidiLevel,bounds,breakOpportunity,cffHinting,color,content,decimalAlignmentToken,descent,digitCase,digitWidth,dominantBaseline,elementCount,elementFormat,elementHeight,element,elementWidth,emBox,eventMirror,firstInvalidLine,firstLine,fontDescription,fontLookup,fontName,fontPosture,fontSize,fontWeight,graphic,groupElement,hasGraphicElement,justificationStyle,kerning,lastLine,letterSpacing,ligatureLevel,lineJustification,lineRotation,locale,locale,locked,locked,mirrorRegions,mirror,nextLine,nextRegion,position,previousLine,previousRegion,rawText,rawTextLength,renderingMode,specifiedWidth,strikethroughOffset,strikethroughThickness,subscriptOffset,subscriptScale,superscriptOffset,superscriptScale,tabStops,text,textBlockBeginIndex,textBlockBeginIndex,textBlock,textBlock,textHeight,textJustifier,textLineCreationResult,textLine,text,textRotation,textRotation,textWidth,trackingLeft,trackingRight,typographicCase,underlineOffset,underlineThickness,unjustifiedTextWidth,userData,userData,userData,validity"><title>flash.text.engine.FontMetrics (ActionScript 3.0)</title></head><body><script language="javascript" type="text/javascript" src="../../../asdoc.js"></script><script language="javascript" type="text/javascript" src="../../../help.js"></script><script language="javascript" type="text/javascript" src="../../../cookies.js"></script><script language="javascript" type="text/javascript">  
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	</script><table class="titleTable" cellpadding="0" cellspacing="0" id="titleTable" style="display:none"><tr><td class="titleTableTitle" align="left">ActionScript 3.0 Language and Components Reference</td><td class="titleTableSearch" align="center"><form class="searchForm" method="get" action="../../../search.html" onsubmit="submitValue();"><input class="hidden" name="loc" value="" type="hidden"><input class="hidden" name="termPrefix" value="" type="hidden"><input class="hidden" name="term" value="" type="hidden"><input class="hidden" name="area" value="" type="hidden"><input id="search-livedocs" name="search_text" value="" title="" type="text"> <input type="button" name="action" value="Search" onclick="submitValue()"></form></td><td class="titleTableTopNav" align="right"><a href="../../../../../Flash/10.0_Welcome/index.html">Home</a>&nbsp;|&nbsp;<a href="../../../package-summary.html" onclick="loadClassListFrame('../../../all-classes.html')">All Packages</a>&nbsp;|&nbsp;<a href="../../../class-summary.html" onclick="loadClassListFrame('../../../all-classes.html')">All Classes</a>&nbsp;|&nbsp;<a href="../../../language-elements.html">Language Elements</a>&nbsp;| <a href="../../../all-index-Symbols.html" onclick="loadClassListFrame('../../../index-list.html')">Index</a>&nbsp;|&nbsp;<a href="../../../appendixes.html">Appendixes</a>&nbsp;|&nbsp;<a href="../../../conventions.html">Conventions</a>&nbsp;|&nbsp;<a id="framesLink1" href="../../../index.html?flash/text/engine/FontMetrics.html&amp;flash/text/engine/class-list.html">Frames</a><a id="noFramesLink1" style="display:none" href="" onclick="parent.location=document.location"> No Frames </a></td><td class="titleTableLogo" align="right" rowspan="3"><img src="../../../images/logo.jpg" class="logoImage" alt=" Adobe Logo " title=" Adobe Logo "></td></tr><tr class="titleTableRow2"><td class="titleTableSubTitle" id="subTitle" align="left">FontMetrics</td><td class="titleTableSubNav" id="subNav" align="right" colspan="2"><a href="#propertySummary">Properties</a>&nbsp;| <a href="#methodSummary">Methods</a>&nbsp;| <a href="#eventSummary">Events</a>&nbsp;| <a href="#styleSummary">Styles</a>&nbsp;| <a href="#effectSummary">Effects</a>&nbsp;| <a href="#constantSummary">Constants</a>&nbsp;| <a href="#includeExamplesSummary">Examples</a></td></tr><tr class="titleTableRow3"><td colspan="3">&nbsp;</td></tr></table><script language="javascript" type="text/javascript" xml:space="preserve">
                
                    
                

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			</script><div class="MainContent"><table class="classHeaderTable" cellpadding="0" cellspacing="0"><tr><td class="classHeaderTableLabel">Package</td><td><a href="package-detail.html" onclick="javascript:loadClassListFrame('class-list.html')">flash.text.engine</a></td></tr><tr><td class="classHeaderTableLabel">Class</td><td class="classSignature">public final   class  FontMetrics</td></tr><tr><td class="classHeaderTableLabel">Inheritance</td><td class="inheritanceList">FontMetrics  <img src="../../../images/inherit-arrow.gif" title="Inheritance" alt="Inheritance" class="inheritArrow"> <a href="../../../Object.html">Object</a></td></tr></table><p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b>Language Version:&nbsp;</b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b>Runtime Versions:&nbsp;</b></td><td>Flash Player 10, AIR 1.5</td></tr></table><p></p><p></p><p></p>
        The FontMetrics class contains measurement and offset information about a font.
 The
        <code>flash.text.engine.ElementFormat.getFontMetrics()</code>
        method returns objects of this class.
      <p></p><p><span class="classHeaderTableLabel">See also</span></p><div class="seeAlso"><a href="ElementFormat.html#getFontMetrics()" target="">flash.text.engine.ElementFormat.getFontMetrics()</a></div><br/><hr></div><a name="propertySummary"></a><div class="summarySection"><div class="summaryTableTitle">Public Properties</div><div class="showHideLinks"><div id="hideInheritedProperty" class="hideInheritedProperty"><a class="showHideLink" href="#propertySummary" onclick="javascript:setInheritedVisible(false,'Property');"><img class="showHideLinkImage" src="../../../images/expanded.gif"> Hide Inherited Public Properties</a></div><div id="showInheritedProperty" class="showInheritedProperty"><a class="showHideLink" href="#propertySummary" onclick="javascript:setInheritedVisible(true,'Property');"><img class="showHideLinkImage" src="../../../images/collapsed.gif"> Show Inherited Public Properties</a></div></div><table cellspacing="0" cellpadding="3" class="summaryTable " id="summaryTableProperty"><tr><th>&nbsp;</th><th colspan="2">Property</th><th>Defined By</th></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../../Object.html#constructor" class="signatureLink">constructor</a> : <a href="../../../Object.html">Object</a><div class="summaryTableDescription">A reference to the class object or constructor function for a given object instance.</div></td><td class="summaryTableOwnerCol"><a href="../../../Object.html">Object</a></td></tr><tr class=""><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol">&nbsp;</td><td class="summaryTableSignatureCol"><a href="#emBox" class="signatureLink">emBox</a> : <a href="../../../flash/geom/Rectangle.html">Rectangle</a><div class="summaryTableDescription">The emBox value represents the design space of the font and is used to place Chinese, 
  Korean, or Japanese glyphs relative to the Roman baseline.</div></td><td class="summaryTableOwnerCol">FontMetrics</td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../../Object.html#prototype" class="signatureLink">prototype</a> : <a href="../../../Object.html">Object</a><div class="summaryTableDescription">[static] A reference to the prototype object of a class or function object.</div></td><td class="summaryTableOwnerCol"><a href="../../../Object.html">Object</a></td></tr><tr class=""><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol">&nbsp;</td><td class="summaryTableSignatureCol"><a href="#strikethroughOffset" class="signatureLink">strikethroughOffset</a> : <a href="../../../Number.html">Number</a><div class="summaryTableDescription">The strikethroughOffset value is the suggested vertical offset from the Roman baseline for a strikethrough.</div></td><td class="summaryTableOwnerCol">FontMetrics</td></tr><tr class=""><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol">&nbsp;</td><td class="summaryTableSignatureCol"><a href="#strikethroughThickness" class="signatureLink">strikethroughThickness</a> : <a href="../../../Number.html">Number</a><div class="summaryTableDescription">The strikethroughThickness value is the suggested thickness for a strikethrough.</div></td><td class="summaryTableOwnerCol">FontMetrics</td></tr><tr class=""><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol">&nbsp;</td><td class="summaryTableSignatureCol"><a href="#subscriptOffset" class="signatureLink">subscriptOffset</a> : <a href="../../../Number.html">Number</a><div class="summaryTableDescription">The subscriptOffset value is the suggested vertical offset from the Roman baseline for a subscript.</div></td><td class="summaryTableOwnerCol">FontMetrics</td></tr><tr class=""><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol">&nbsp;</td><td class="summaryTableSignatureCol"><a href="#subscriptScale" class="signatureLink">subscriptScale</a> : <a href="../../../Number.html">Number</a><div class="summaryTableDescription">The subscriptScale value is the suggested scale factor to apply to the point size for a subscript.</div></td><td class="summaryTableOwnerCol">FontMetrics</td></tr><tr class=""><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol">&nbsp;</td><td class="summaryTableSignatureCol"><a href="#superscriptOffset" class="signatureLink">superscriptOffset</a> : <a href="../../../Number.html">Number</a><div class="summaryTableDescription">The superscriptOffset value is the suggested vertical offset from the Roman baseline for a superscript.</div></td><td class="summaryTableOwnerCol">FontMetrics</td></tr><tr class=""><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol">&nbsp;</td><td class="summaryTableSignatureCol"><a href="#superscriptScale" class="signatureLink">superscriptScale</a> : <a href="../../../Number.html">Number</a><div class="summaryTableDescription">The superscriptScale value is the suggested scale factor to apply to the point size for a superscript.</div></td><td class="summaryTableOwnerCol">FontMetrics</td></tr><tr class=""><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol">&nbsp;</td><td class="summaryTableSignatureCol"><a href="#underlineOffset" class="signatureLink">underlineOffset</a> : <a href="../../../Number.html">Number</a><div class="summaryTableDescription">The underlineOffset value is the suggested vertical offset from the Roman baseline for an underline.</div></td><td class="summaryTableOwnerCol">FontMetrics</td></tr><tr class=""><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol">&nbsp;</td><td class="summaryTableSignatureCol"><a href="#underlineThickness" class="signatureLink">underlineThickness</a> : <a href="../../../Number.html">Number</a><div class="summaryTableDescription">The underlineThickness value is the suggested thickness for an underline.</div></td><td class="summaryTableOwnerCol">FontMetrics</td></tr></table></div><a name="methodSummary"></a><div class="summarySection"><div class="summaryTableTitle">Public Methods </div><div class="showHideLinks"><div id="hideInheritedMethod" class="hideInheritedMethod"><a class="showHideLink" href="#methodSummary" onclick="javascript:setInheritedVisible(false,'Method');"><img class="showHideLinkImage" src="../../../images/expanded.gif"> Hide Inherited Public Methods</a></div><div id="showInheritedMethod" class="showInheritedMethod"><a class="showHideLink" href="#methodSummary" onclick="javascript:setInheritedVisible(true,'Method');"><img class="showHideLinkImage" src="../../../images/collapsed.gif"> Show Inherited Public Methods</a></div></div><table cellspacing="0" cellpadding="3" class="summaryTable " id="summaryTableMethod"><tr><th>&nbsp;</th><th colspan="2">Method</th><th>Defined By</th></tr><tr class=""><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol">&nbsp;</td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="#FontMetrics()" class="signatureLink">FontMetrics</a>(emBox:<a href="../../../flash/geom/Rectangle.html">Rectangle</a>, strikethroughOffset:<a href="../../../Number.html">Number</a>, strikethroughThickness:<a href="../../../Number.html">Number</a>, underlineOffset:<a href="../../../Number.html">Number</a>, underlineThickness:<a href="../../../Number.html">Number</a>, subscriptOffset:<a href="../../../Number.html">Number</a>, subscriptScale:<a href="../../../Number.html">Number</a>, superscriptOffset:<a href="../../../Number.html">Number</a>, superscriptScale:<a href="../../../Number.html">Number</a>)</div><div class="summaryTableDescription">Creates a FontMetrics object.</div></td><td class="summaryTableOwnerCol">FontMetrics</td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../../Object.html#hasOwnProperty()" class="signatureLink">hasOwnProperty</a>(name:<a href="../../../String.html">String</a>):<a href="../../../Boolean.html">Boolean</a></div><div class="summaryTableDescription">Indicates whether an object has a specified property defined.</div></td><td class="summaryTableOwnerCol"><a href="../../../Object.html">Object</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../../Object.html#isPrototypeOf()" class="signatureLink">isPrototypeOf</a>(theClass:<a href="../../../Object.html">Object</a>):<a href="../../../Boolean.html">Boolean</a></div><div class="summaryTableDescription">Indicates whether an instance of the Object class is in the prototype chain of the object specified 
  as the parameter.</div></td><td class="summaryTableOwnerCol"><a href="../../../Object.html">Object</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../../Object.html#propertyIsEnumerable()" class="signatureLink">propertyIsEnumerable</a>(name:<a href="../../../String.html">String</a>):<a href="../../../Boolean.html">Boolean</a></div><div class="summaryTableDescription">Indicates whether the specified property exists and is enumerable.</div></td><td class="summaryTableOwnerCol"><a href="../../../Object.html">Object</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../../Object.html#setPropertyIsEnumerable()" class="signatureLink">setPropertyIsEnumerable</a>(name:<a href="../../../String.html">String</a>, isEnum:<a href="../../../Boolean.html">Boolean</a> = true):<a href="../../../specialTypes.html#void">void</a></div><div class="summaryTableDescription">Sets the availability of a dynamic property for loop operations.</div></td><td class="summaryTableOwnerCol"><a href="../../../Object.html">Object</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../../Object.html#toString()" class="signatureLink">toString</a>():<a href="../../../String.html">String</a></div><div class="summaryTableDescription">Returns the string representation of the specified object.</div></td><td class="summaryTableOwnerCol"><a href="../../../Object.html">Object</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../../Object.html#valueOf()" class="signatureLink">valueOf</a>():<a href="../../../Object.html">Object</a></div><div class="summaryTableDescription">Returns the primitive value of the specified object.</div></td><td class="summaryTableOwnerCol"><a href="../../../Object.html">Object</a></td></tr></table></div><script language="javascript" type="text/javascript"><!--
                      showHideInherited();
                      --></script><div class="MainContent"><div class="detailSectionHeader">Property Detail</div><a name="propertyDetail"></a><a name="emBox"></a><table class="detailHeader" cellpadding="0" cellspacing="0"><tr><td class="detailHeaderName">emBox</td><td class="detailHeaderType">property</td></tr></table><div class="detailBody"><code>public var emBox:<a href="../../../flash/geom/Rectangle.html">Rectangle</a></code><p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b>Language Version:&nbsp;</b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b>Runtime Versions:&nbsp;</b></td><td>Flash Player 10, AIR 1.5</td></tr></table><p></p><p></p><p>The emBox value represents the design space of the font and is used to place Chinese, 
  Korean, or Japanese glyphs relative to the Roman baseline. 
  Typically a square, sized to the point size of the font. The origin (coordinate 0,0) 
  of the emBox is set to the left edge and Roman baseline of the rect. 
  For example, for a 10-point font, the emBox can be a rect [L,T,R,B] of [0, -8.8, 10, 1.2].</p><p><span class="label">See also</span></p><div class="seeAlso"><a href="FontMetrics.html" target="">FontMetrics class overview</a></div></div><a name="propertyDetail"></a><a name="strikethroughOffset"></a><table class="detailHeader" cellpadding="0" cellspacing="0"><tr><td class="detailHeaderName">strikethroughOffset</td><td class="detailHeaderType">property</td><td class="detailHeaderRule">&nbsp;</td></tr></table><div class="detailBody"><code>public var strikethroughOffset:<a href="../../../Number.html">Number</a></code><p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b>Language Version:&nbsp;</b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b>Runtime Versions:&nbsp;</b></td><td>Flash Player 10, AIR 1.5</td></tr></table><p></p><p></p><p>
          The strikethroughOffset value is the suggested vertical offset from the Roman baseline for a strikethrough.
          <p>
            Note that depending on the rotation of the line, this value is either added or subtracted from the 
  position of the line to find the position for the strikethrough.  In a line with
            <code>TextRotation.ROTATE_0</code>
            ,
            <code>strikethrough.y = line.y + strikethroughOffset</code>
            .  In a line 
  with
            <code>TextRotation.ROTATE_90</code>
            ,
            <code>strikethrough.x = line.x - strikethroughOffset</code>
            .
          </p>
          
          <p>
            When applying decorations such as strikethroughs, the recommended procedure is to specify 
  an
            <code>eventMirror</code>
            on the
            <code>ContentElement</code>
            which is to receive the decoration.
  In response to the
            <code>flash.events.Event.ADDED</code>
            event, the
            <code>bounds</code>
            of the
            <code>TextLineMirrorRegion</code>
            can be used in conjunction with the
            <code>strikethroughOffset</code>
            to place the strikethrough.
          </p>
          
        </p><p><span class="label">See also</span></p><div class="seeAlso"><a href="FontMetrics.html" target="">FontMetrics class overview</a></div></div><a name="propertyDetail"></a><a name="strikethroughThickness"></a><table class="detailHeader" cellpadding="0" cellspacing="0"><tr><td class="detailHeaderName">strikethroughThickness</td><td class="detailHeaderType">property</td><td class="detailHeaderRule">&nbsp;</td></tr></table><div class="detailBody"><code>public var strikethroughThickness:<a href="../../../Number.html">Number</a></code><p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b>Language Version:&nbsp;</b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b>Runtime Versions:&nbsp;</b></td><td>Flash Player 10, AIR 1.5</td></tr></table><p></p><p></p><p>The strikethroughThickness value is the suggested thickness for a strikethrough.</p><p><span class="label">See also</span></p><div class="seeAlso"><a href="FontMetrics.html" target="">FontMetrics class overview</a></div></div><a name="propertyDetail"></a><a name="subscriptOffset"></a><table class="detailHeader" cellpadding="0" cellspacing="0"><tr><td class="detailHeaderName">subscriptOffset</td><td class="detailHeaderType">property</td><td class="detailHeaderRule">&nbsp;</td></tr></table><div class="detailBody"><code>public var subscriptOffset:<a href="../../../Number.html">Number</a></code><p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b>Language Version:&nbsp;</b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b>Runtime Versions:&nbsp;</b></td><td>Flash Player 10, AIR 1.5</td></tr></table><p></p><p></p><p>
          The subscriptOffset value is the suggested vertical offset from the Roman baseline for a subscript.
          <p>
            The subscriptOffset value is used with
            <code>ElementFormat.baselineShift</code>
            to position the subscript.
          </p>
          
        </p><p><span class="label">See also</span></p><div class="seeAlso"><a href="FontMetrics.html" target="">FontMetrics class overview</a></div></div><a name="propertyDetail"></a><a name="subscriptScale"></a><table class="detailHeader" cellpadding="0" cellspacing="0"><tr><td class="detailHeaderName">subscriptScale</td><td class="detailHeaderType">property</td><td class="detailHeaderRule">&nbsp;</td></tr></table><div class="detailBody"><code>public var subscriptScale:<a href="../../../Number.html">Number</a></code><p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b>Language Version:&nbsp;</b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b>Runtime Versions:&nbsp;</b></td><td>Flash Player 10, AIR 1.5</td></tr></table><p></p><p></p><p>The subscriptScale value is the suggested scale factor to apply to the point size for a subscript.
  A scale factor of 1.0 means no scaling.</p><p><span class="label">See also</span></p><div class="seeAlso"><a href="FontMetrics.html" target="">FontMetrics class overview</a></div></div><a name="propertyDetail"></a><a name="superscriptOffset"></a><table class="detailHeader" cellpadding="0" cellspacing="0"><tr><td class="detailHeaderName">superscriptOffset</td><td class="detailHeaderType">property</td><td class="detailHeaderRule">&nbsp;</td></tr></table><div class="detailBody"><code>public var superscriptOffset:<a href="../../../Number.html">Number</a></code><p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b>Language Version:&nbsp;</b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b>Runtime Versions:&nbsp;</b></td><td>Flash Player 10, AIR 1.5</td></tr></table><p></p><p></p><p>
          The superscriptOffset value is the suggested vertical offset from the Roman baseline for a superscript.
          <p>
            The superscriptOffset value is used with
            <code>ElementFormat.baselineShift</code>
            to position the superscript.
          </p>
          
        </p><p><span class="label">See also</span></p><div class="seeAlso"><a href="FontMetrics.html" target="">FontMetrics class overview</a></div></div><a name="propertyDetail"></a><a name="superscriptScale"></a><table class="detailHeader" cellpadding="0" cellspacing="0"><tr><td class="detailHeaderName">superscriptScale</td><td class="detailHeaderType">property</td><td class="detailHeaderRule">&nbsp;</td></tr></table><div class="detailBody"><code>public var superscriptScale:<a href="../../../Number.html">Number</a></code><p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b>Language Version:&nbsp;</b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b>Runtime Versions:&nbsp;</b></td><td>Flash Player 10, AIR 1.5</td></tr></table><p></p><p></p><p>The superscriptScale value is the suggested scale factor to apply to the point size for a superscript.
  A scale factor of 1.0 means no scaling.</p><p><span class="label">See also</span></p><div class="seeAlso"><a href="FontMetrics.html" target="">FontMetrics class overview</a></div></div><a name="propertyDetail"></a><a name="underlineOffset"></a><table class="detailHeader" cellpadding="0" cellspacing="0"><tr><td class="detailHeaderName">underlineOffset</td><td class="detailHeaderType">property</td><td class="detailHeaderRule">&nbsp;</td></tr></table><div class="detailBody"><code>public var underlineOffset:<a href="../../../Number.html">Number</a></code><p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b>Language Version:&nbsp;</b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b>Runtime Versions:&nbsp;</b></td><td>Flash Player 10, AIR 1.5</td></tr></table><p></p><p></p><p>
          The underlineOffset value is the suggested vertical offset from the Roman baseline for an underline.
          <p>
            Note that depending on the rotation of the line, this value is either added or subtracted from the 
  position of the line to find the position for the underline.  In a line with
            <code>TextRotation.ROTATE_0</code>
            ,
            <code>underline.y = line.y + underlineOffset</code>
            .  In a line 
  with
            <code>TextRotation.ROTATE_90</code>
            ,
            <code>underline.x = line.x - underlineOffset</code>
            .
          </p>
          
          <p>
            When applying decorations such as underlines, the recommended procedure is to specify 
  an
            <code>eventMirror</code>
            on the
            <code>ContentElement</code>
            which is to receive the decoration.
  In response to the
            <code>flash.events.Event.ADDED</code>
            event, the
            <code>bounds</code>
            of the
            <code>TextLineMirrorRegion</code>
            can be used in conjunction with the
            <code>underlineOffset</code>
            to place the underline.
          </p>
          
        </p><p><span class="label">See also</span></p><div class="seeAlso"><a href="FontMetrics.html" target="">FontMetrics class overview</a></div></div><a name="propertyDetail"></a><a name="underlineThickness"></a><table class="detailHeader" cellpadding="0" cellspacing="0"><tr><td class="detailHeaderName">underlineThickness</td><td class="detailHeaderType">property</td><td class="detailHeaderRule">&nbsp;</td></tr></table><div class="detailBody"><code>public var underlineThickness:<a href="../../../Number.html">Number</a></code><p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b>Language Version:&nbsp;</b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b>Runtime Versions:&nbsp;</b></td><td>Flash Player 10, AIR 1.5</td></tr></table><p></p><p></p><p>The underlineThickness value is the suggested thickness for an underline.</p><p><span class="label">See also</span></p><div class="seeAlso"><a href="FontMetrics.html" target="">FontMetrics class overview</a></div></div><a name="constructorDetail"></a><div class="detailSectionHeader">Constructor Detail</div><a name="FontMetrics()"></a><a name="FontMetrics(flash.geom.Rectangle,Number,Number,Number,Number,Number,Number,Number,Number)"></a><table class="detailHeader" cellpadding="0" cellspacing="0"><tr><td class="detailHeaderName">FontMetrics</td><td class="detailHeaderParens">()</td><td class="detailHeaderType">Constructor</td></tr></table><div class="detailBody"><code>public function FontMetrics(emBox:<a href="../../../flash/geom/Rectangle.html">Rectangle</a>, strikethroughOffset:<a href="../../../Number.html">Number</a>, strikethroughThickness:<a href="../../../Number.html">Number</a>, underlineOffset:<a href="../../../Number.html">Number</a>, underlineThickness:<a href="../../../Number.html">Number</a>, subscriptOffset:<a href="../../../Number.html">Number</a>, subscriptScale:<a href="../../../Number.html">Number</a>, superscriptOffset:<a href="../../../Number.html">Number</a>, superscriptScale:<a href="../../../Number.html">Number</a>)</code><p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b>Language Version:&nbsp;</b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b>Runtime Versions:&nbsp;</b></td><td>Flash Player 10, AIR 1.5</td></tr></table><p></p><p>
          Creates a FontMetrics object.  The FontMetrics object contains information about 
  the metrics of a font in an element format. 
  The
          <code>flash.text.engine.ElementFormat.getFontMetrics()</code>
          method returns objects of this class.
        </p><span class="label"> Parameters </span><table cellpadding="0" cellspacing="0" border="0"><tr><td width="20px"></td><td><code><span class="label">emBox</span>:<a href="../../../flash/geom/Rectangle.html">Rectangle</a></code> &mdash; The emBox of the font in pixels.</td></tr><tr><td class="paramSpacer">&nbsp;</td></tr><tr><td width="20px"></td><td><code><span class="label">strikethroughOffset</span>:<a href="../../../Number.html">Number</a></code> &mdash; The offset for a strikethrough in pixels.</td></tr><tr><td class="paramSpacer">&nbsp;</td></tr><tr><td width="20px"></td><td><code><span class="label">strikethroughThickness</span>:<a href="../../../Number.html">Number</a></code> &mdash; The thickness for a strikethrough in pixels.</td></tr><tr><td class="paramSpacer">&nbsp;</td></tr><tr><td width="20px"></td><td><code><span class="label">underlineOffset</span>:<a href="../../../Number.html">Number</a></code> &mdash; The offset for an underline in pixels.</td></tr><tr><td class="paramSpacer">&nbsp;</td></tr><tr><td width="20px"></td><td><code><span class="label">underlineThickness</span>:<a href="../../../Number.html">Number</a></code> &mdash; The thickness for an underline in pixels.</td></tr><tr><td class="paramSpacer">&nbsp;</td></tr><tr><td width="20px"></td><td><code><span class="label">subscriptOffset</span>:<a href="../../../Number.html">Number</a></code> &mdash; The offset for a subscript in pixels.</td></tr><tr><td class="paramSpacer">&nbsp;</td></tr><tr><td width="20px"></td><td><code><span class="label">subscriptScale</span>:<a href="../../../Number.html">Number</a></code> &mdash; The scale to apply to the point size of a subscript.</td></tr><tr><td class="paramSpacer">&nbsp;</td></tr><tr><td width="20px"></td><td><code><span class="label">superscriptOffset</span>:<a href="../../../Number.html">Number</a></code> &mdash; The offset for a superscript in pixels.</td></tr><tr><td class="paramSpacer">&nbsp;</td></tr><tr><td width="20px"></td><td><code><span class="label">superscriptScale</span>:<a href="../../../Number.html">Number</a></code> &mdash; The scale to apply to the point size of a superscript.</td></tr></table><p><span class="label">See also</span></p><div class="seeAlso"><a href="FontMetrics.html" target="">FontMetrics class overview</a><br/><a href="ElementFormat.html#getFontMetrics()" target="">flash.text.engine.ElementFormat.getFontMetrics()</a></div></div><br/><br/><hr><br/><p></p><center class="copyright"> &copy; 2004-2008 Adobe Systems Incorporated. All rights reserved. <br/>Thu Oct 30 2008, 07:08 PM -07:00  </center><div style="display:none">FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics FontMetrics </div><div style="display:none">flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics 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flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics flash.text.engine.FontMetrics </div></div></body></html><!-- &copy; 2004-2008 Adobe Systems Incorporated. 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