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<title>QGeoPositionInfo Class | Qt Positioning 5.12.6</title>
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<td >Qt 5.12</td><td ><a href="qtpositioning-index.html">Qt Positioning</a></td><td ><a href="qtpositioning-module.html">C++ Classes</a></td><td >QGeoPositionInfo</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right"><a href="qtpositioning-index.html">Qt 5.12.6 Reference Documentation</a></td>
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<h3><a name="toc">Contents</a></h3>
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<li class="level1"><a href="#public-types">Public Types</a></li>
<li class="level1"><a href="#public-functions">Public Functions</a></li>
<li class="level1"><a href="#related-non-members">Related Non-Members</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QGeoPositionInfo Class</h1>
<!-- $$$QGeoPositionInfo-brief -->
<p>The <a href="qgeopositioninfo.html">QGeoPositionInfo</a> class contains information gathered on a global position, direction and velocity at a particular point in time. <a href="#details">More...</a></p>
<!-- @@@QGeoPositionInfo -->
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<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> <span class="preprocessor">#include <QGeoPositionInfo></span>
</td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += positioning</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Since:</td><td class="memItemRight bottomAlign"> Qt 5.2</td></tr></table></div><ul>
<li><a href="qgeopositioninfo-members.html">List of all members, including inherited members</a></li>
</ul>
<a name="public-types"></a>
<h2 id="public-types">Public Types</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> enum </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#Attribute-enum">Attribute</a></b> { Direction, GroundSpeed, VerticalSpeed, MagneticVariation, HorizontalAccuracy, VerticalAccuracy }</td></tr>
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<a name="public-functions"></a>
<h2 id="public-functions">Public Functions</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#QGeoPositionInfo">QGeoPositionInfo</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#QGeoPositionInfo-1">QGeoPositionInfo</a></b>(const QGeoCoordinate &<i>coordinate</i>, const QDateTime &<i>timestamp</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#QGeoPositionInfo-2">QGeoPositionInfo</a></b>(const QGeoPositionInfo &<i>other</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#QGeoPositionInfo-3">QGeoPositionInfo</a></b>(QGeoPositionInfoPrivate &<i>dd</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#dtor.QGeoPositionInfo">~QGeoPositionInfo</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#attribute">attribute</a></b>(QGeoPositionInfo::Attribute <i>attribute</i>) const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QGeoCoordinate </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#coordinate">coordinate</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#hasAttribute">hasAttribute</a></b>(QGeoPositionInfo::Attribute <i>attribute</i>) const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#isValid">isValid</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#removeAttribute">removeAttribute</a></b>(QGeoPositionInfo::Attribute <i>attribute</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#setAttribute">setAttribute</a></b>(QGeoPositionInfo::Attribute <i>attribute</i>, qreal <i>value</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#setCoordinate">setCoordinate</a></b>(const QGeoCoordinate &<i>coordinate</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#setTimestamp">setTimestamp</a></b>(const QDateTime &<i>timestamp</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QDateTime </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#timestamp">timestamp</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#operator-not-eq">operator!=</a></b>(const QGeoPositionInfo &<i>other</i>) const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QGeoPositionInfo &</td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#operator-eq">operator=</a></b>(const QGeoPositionInfo &<i>other</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#operator-eq-eq">operator==</a></b>(const QGeoPositionInfo &<i>other</i>) const</td></tr>
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<a name="related-non-members"></a>
<h2 id="related-non-members">Related Non-Members</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> QDataStream &</td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#operator-lt-lt">operator<<</a></b>(QDataStream &<i>stream</i>, QGeoPositionInfo::Attribute <i>attr</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QDataStream &</td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#operator-lt-lt-1">operator<<</a></b>(QDataStream &<i>stream</i>, const QGeoPositionInfo &<i>info</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QDataStream &</td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#operator-gt-gt">operator>></a></b>(QDataStream &<i>stream</i>, QGeoPositionInfo::Attribute &<i>attr</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QDataStream &</td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#operator-gt-gt-1">operator>></a></b>(QDataStream &<i>stream</i>, QGeoPositionInfo &<i>info</i>)</td></tr>
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<a name="details"></a>
<!-- $$$QGeoPositionInfo-description -->
<div class="descr">
<h2 id="details">Detailed Description</h2>
<p>The <a href="qgeopositioninfo.html">QGeoPositionInfo</a> class contains information gathered on a global position, direction and velocity at a particular point in time.</p>
<p>A <a href="qgeopositioninfo.html">QGeoPositionInfo</a> contains, at a minimum, a geographical coordinate and a timestamp. It may also have heading and speed measurements as well as estimates of the accuracy of the provided data.</p>
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<p><b>See also </b><a href="qgeopositioninfosource.html">QGeoPositionInfoSource</a>.</p>
<!-- @@@QGeoPositionInfo -->
<div class="types">
<h2>Member Type Documentation</h2>
<!-- $$$Attribute$$$Direction$$$GroundSpeed$$$VerticalSpeed$$$MagneticVariation$$$HorizontalAccuracy$$$VerticalAccuracy -->
<h3 class="fn" id="Attribute-enum"><a name="Attribute-enum"></a>enum QGeoPositionInfo::<span class="name">Attribute</span></h3>
<p>Defines the attributes for positional information.</p>
<div class="table"><table class="valuelist"><tr valign="top" class="odd"><th class="tblConst">Constant</th><th class="tblval">Value</th><th class="tbldscr">Description</th></tr>
<tr><td class="topAlign"><code>QGeoPositionInfo::Direction</code></td><td class="topAlign tblval"><code>0</code></td><td class="topAlign">The bearing measured in degrees clockwise from true north to the direction of travel.</td></tr>
<tr><td class="topAlign"><code>QGeoPositionInfo::GroundSpeed</code></td><td class="topAlign tblval"><code>1</code></td><td class="topAlign">The ground speed, in meters/sec.</td></tr>
<tr><td class="topAlign"><code>QGeoPositionInfo::VerticalSpeed</code></td><td class="topAlign tblval"><code>2</code></td><td class="topAlign">The vertical speed, in meters/sec.</td></tr>
<tr><td class="topAlign"><code>QGeoPositionInfo::MagneticVariation</code></td><td class="topAlign tblval"><code>3</code></td><td class="topAlign">The angle between the horizontal component of the magnetic field and true north, in degrees. Also known as magnetic declination. A positive value indicates a clockwise direction from true north and a negative value indicates a counter-clockwise direction.</td></tr>
<tr><td class="topAlign"><code>QGeoPositionInfo::HorizontalAccuracy</code></td><td class="topAlign tblval"><code>4</code></td><td class="topAlign">The accuracy of the provided latitude-longitude value, in meters.</td></tr>
<tr><td class="topAlign"><code>QGeoPositionInfo::VerticalAccuracy</code></td><td class="topAlign tblval"><code>5</code></td><td class="topAlign">The accuracy of the provided altitude value, in meters.</td></tr>
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<!-- @@@Attribute -->
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<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$QGeoPositionInfo[overload1]$$$QGeoPositionInfo -->
<h3 class="fn" id="QGeoPositionInfo"><a name="QGeoPositionInfo"></a>QGeoPositionInfo::<span class="name">QGeoPositionInfo</span>()</h3>
<p>Creates an invalid <a href="qgeopositioninfo.html">QGeoPositionInfo</a> object.</p>
<p><b>See also </b><a href="qgeopositioninfo.html#isValid">isValid</a>().</p>
<!-- @@@QGeoPositionInfo -->
<!-- $$$QGeoPositionInfo$$$QGeoPositionInfoconstQGeoCoordinate&constQDateTime& -->
<h3 class="fn" id="QGeoPositionInfo-1"><a name="QGeoPositionInfo-1"></a>QGeoPositionInfo::<span class="name">QGeoPositionInfo</span>(const <span class="type"><a href="qgeocoordinate.html">QGeoCoordinate</a></span> &<i>coordinate</i>, const <span class="type">QDateTime</span> &<i>timestamp</i>)</h3>
<p>Creates a <a href="qgeopositioninfo.html">QGeoPositionInfo</a> for the given <i>coordinate</i> and <i>timestamp</i>.</p>
<!-- @@@QGeoPositionInfo -->
<!-- $$$QGeoPositionInfo$$$QGeoPositionInfoconstQGeoPositionInfo& -->
<h3 class="fn" id="QGeoPositionInfo-2"><a name="QGeoPositionInfo-2"></a>QGeoPositionInfo::<span class="name">QGeoPositionInfo</span>(const <span class="type"><a href="qgeopositioninfo.html#QGeoPositionInfo">QGeoPositionInfo</a></span> &<i>other</i>)</h3>
<p>Creates a <a href="qgeopositioninfo.html">QGeoPositionInfo</a> with the values of <i>other</i>.</p>
<!-- @@@QGeoPositionInfo -->
<!-- $$$QGeoPositionInfo$$$QGeoPositionInfoQGeoPositionInfoPrivate& -->
<h3 class="fn" id="QGeoPositionInfo-3"><a name="QGeoPositionInfo-3"></a>QGeoPositionInfo::<span class="name">QGeoPositionInfo</span>(<span class="type">QGeoPositionInfoPrivate</span> &<i>dd</i>)</h3>
<p>Default constructs an instance of QGeoPositionInfo.</p><!-- @@@QGeoPositionInfo -->
<!-- $$$~QGeoPositionInfo[overload1]$$$~QGeoPositionInfo -->
<h3 class="fn" id="dtor.QGeoPositionInfo"><a name="dtor.QGeoPositionInfo"></a>QGeoPositionInfo::<span class="name">~QGeoPositionInfo</span>()</h3>
<p>Destroys a <a href="qgeopositioninfo.html">QGeoPositionInfo</a> object.</p>
<!-- @@@~QGeoPositionInfo -->
<!-- $$$attribute[overload1]$$$attributeQGeoPositionInfo::Attribute -->
<h3 class="fn" id="attribute"><a name="attribute"></a><span class="type">qreal</span> QGeoPositionInfo::<span class="name">attribute</span>(<span class="type"><a href="qgeopositioninfo.html#Attribute-enum">QGeoPositionInfo::Attribute</a></span> <i>attribute</i>) const</h3>
<p>Returns the value of the specified <i>attribute</i> as a qreal value.</p>
<p>Returns NaN if the value has not been set.</p>
<p>The function <a href="qgeopositioninfo.html#hasAttribute">hasAttribute</a>() should be used to determine whether or not a value has been set for an attribute.</p>
<p><b>See also </b><a href="qgeopositioninfo.html#hasAttribute">hasAttribute</a>() and <a href="qgeopositioninfo.html#setAttribute">setAttribute</a>().</p>
<!-- @@@attribute -->
<!-- $$$coordinate[overload1]$$$coordinate -->
<h3 class="fn" id="coordinate"><a name="coordinate"></a><span class="type"><a href="qgeocoordinate.html">QGeoCoordinate</a></span> QGeoPositionInfo::<span class="name">coordinate</span>() const</h3>
<p>Returns the coordinate for this position.</p>
<p>Returns an invalid coordinate if no coordinate has been set.</p>
<p><b>See also </b><a href="qgeopositioninfo.html#setCoordinate">setCoordinate</a>().</p>
<!-- @@@coordinate -->
<!-- $$$hasAttribute[overload1]$$$hasAttributeQGeoPositionInfo::Attribute -->
<h3 class="fn" id="hasAttribute"><a name="hasAttribute"></a><span class="type">bool</span> QGeoPositionInfo::<span class="name">hasAttribute</span>(<span class="type"><a href="qgeopositioninfo.html#Attribute-enum">QGeoPositionInfo::Attribute</a></span> <i>attribute</i>) const</h3>
<p>Returns true if the specified <i>attribute</i> is present for this <a href="qgeopositioninfo.html">QGeoPositionInfo</a> object.</p>
<!-- @@@hasAttribute -->
<!-- $$$isValid[overload1]$$$isValid -->
<h3 class="fn" id="isValid"><a name="isValid"></a><span class="type">bool</span> QGeoPositionInfo::<span class="name">isValid</span>() const</h3>
<p>Returns true if the <a href="qgeopositioninfo.html#timestamp">timestamp</a>() and <a href="qgeopositioninfo.html#coordinate">coordinate</a>() values are both valid.</p>
<p><b>See also </b><a href="qgeocoordinate.html#isValid">QGeoCoordinate::isValid</a>() and QDateTime::isValid().</p>
<!-- @@@isValid -->
<!-- $$$removeAttribute[overload1]$$$removeAttributeQGeoPositionInfo::Attribute -->
<h3 class="fn" id="removeAttribute"><a name="removeAttribute"></a><span class="type">void</span> QGeoPositionInfo::<span class="name">removeAttribute</span>(<span class="type"><a href="qgeopositioninfo.html#Attribute-enum">QGeoPositionInfo::Attribute</a></span> <i>attribute</i>)</h3>
<p>Removes the specified <i>attribute</i> and its value.</p>
<!-- @@@removeAttribute -->
<!-- $$$setAttribute[overload1]$$$setAttributeQGeoPositionInfo::Attributeqreal -->
<h3 class="fn" id="setAttribute"><a name="setAttribute"></a><span class="type">void</span> QGeoPositionInfo::<span class="name">setAttribute</span>(<span class="type"><a href="qgeopositioninfo.html#Attribute-enum">QGeoPositionInfo::Attribute</a></span> <i>attribute</i>, <span class="type">qreal</span> <i>value</i>)</h3>
<p>Sets the value for <i>attribute</i> to <i>value</i>.</p>
<p><b>See also </b><a href="qgeopositioninfo.html#attribute">attribute</a>().</p>
<!-- @@@setAttribute -->
<!-- $$$setCoordinate[overload1]$$$setCoordinateconstQGeoCoordinate& -->
<h3 class="fn" id="setCoordinate"><a name="setCoordinate"></a><span class="type">void</span> QGeoPositionInfo::<span class="name">setCoordinate</span>(const <span class="type"><a href="qgeocoordinate.html">QGeoCoordinate</a></span> &<i>coordinate</i>)</h3>
<p>Sets the coordinate for this position to <i>coordinate</i>.</p>
<p><b>See also </b><a href="qgeopositioninfo.html#coordinate">coordinate</a>().</p>
<!-- @@@setCoordinate -->
<!-- $$$setTimestamp[overload1]$$$setTimestampconstQDateTime& -->
<h3 class="fn" id="setTimestamp"><a name="setTimestamp"></a><span class="type">void</span> QGeoPositionInfo::<span class="name">setTimestamp</span>(const <span class="type">QDateTime</span> &<i>timestamp</i>)</h3>
<p>Sets the date and time at which this position was reported to <i>timestamp</i>.</p>
<p>The <i>timestamp</i> must be in UTC time.</p>
<p><b>See also </b><a href="qgeopositioninfo.html#timestamp">timestamp</a>().</p>
<!-- @@@setTimestamp -->
<!-- $$$timestamp[overload1]$$$timestamp -->
<h3 class="fn" id="timestamp"><a name="timestamp"></a><span class="type">QDateTime</span> QGeoPositionInfo::<span class="name">timestamp</span>() const</h3>
<p>Returns the date and time at which this position was reported, in UTC time.</p>
<p>Returns an invalid QDateTime if no date/time value has been set.</p>
<p><b>See also </b><a href="qgeopositioninfo.html#setTimestamp">setTimestamp</a>().</p>
<!-- @@@timestamp -->
<!-- $$$operator!=[overload1]$$$operator!=constQGeoPositionInfo& -->
<h3 class="fn" id="operator-not-eq"><a name="operator-not-eq"></a><span class="type">bool</span> QGeoPositionInfo::<span class="name">operator!=</span>(const <span class="type"><a href="qgeopositioninfo.html#QGeoPositionInfo">QGeoPositionInfo</a></span> &<i>other</i>) const</h3>
<p>Returns true if any of this object's values are not the same as those of <i>other</i>.</p>
<!-- @@@operator!= -->
<!-- $$$operator=[overload1]$$$operator=constQGeoPositionInfo& -->
<h3 class="fn" id="operator-eq"><a name="operator-eq"></a><span class="type"><a href="qgeopositioninfo.html#QGeoPositionInfo">QGeoPositionInfo</a></span> &QGeoPositionInfo::<span class="name">operator=</span>(const <span class="type"><a href="qgeopositioninfo.html#QGeoPositionInfo">QGeoPositionInfo</a></span> &<i>other</i>)</h3>
<p>Assigns the values from <i>other</i> to this <a href="qgeopositioninfo.html">QGeoPositionInfo</a>.</p>
<!-- @@@operator= -->
<!-- $$$operator==[overload1]$$$operator==constQGeoPositionInfo& -->
<h3 class="fn" id="operator-eq-eq"><a name="operator-eq-eq"></a><span class="type">bool</span> QGeoPositionInfo::<span class="name">operator==</span>(const <span class="type"><a href="qgeopositioninfo.html#QGeoPositionInfo">QGeoPositionInfo</a></span> &<i>other</i>) const</h3>
<p>Returns true if all of this object's values are the same as those of <i>other</i>.</p>
<!-- @@@operator== -->
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<h2>Related Non-Members</h2>
<!-- $$$operator<<[overload1]$$$operator<<QDataStream&QGeoPositionInfo::Attribute -->
<h3 class="fn" id="operator-lt-lt"><a name="operator-lt-lt"></a><span class="type">QDataStream</span> &<span class="name">operator<<</span>(<span class="type">QDataStream</span> &<i>stream</i>, <span class="type"><a href="qgeopositioninfo.html#Attribute-enum">QGeoPositionInfo::Attribute</a></span> <i>attr</i>)</h3>
<p>Writes the given <i>attr</i> enumeration to the specified <i>stream</i>.</p>
<p><b>See also </b>Serializing Qt Data Types.</p>
<!-- @@@operator<< -->
<!-- $$$operator<<$$$operator<<QDataStream&constQGeoPositionInfo& -->
<h3 class="fn" id="operator-lt-lt-1"><a name="operator-lt-lt-1"></a><span class="type">QDataStream</span> &<span class="name">operator<<</span>(<span class="type">QDataStream</span> &<i>stream</i>, const <span class="type"><a href="qgeopositioninfo.html#QGeoPositionInfo">QGeoPositionInfo</a></span> &<i>info</i>)</h3>
<p>Writes the given <i>info</i> to the specified <i>stream</i>.</p>
<p><b>See also </b>Serializing Qt Data Types.</p>
<!-- @@@operator<< -->
<!-- $$$operator>>[overload1]$$$operator>>QDataStream&QGeoPositionInfo::Attribute& -->
<h3 class="fn" id="operator-gt-gt"><a name="operator-gt-gt"></a><span class="type">QDataStream</span> &<span class="name">operator>></span>(<span class="type">QDataStream</span> &<i>stream</i>, <span class="type"><a href="qgeopositioninfo.html#Attribute-enum">QGeoPositionInfo::Attribute</a></span> &<i>attr</i>)</h3>
<p>Reads an attribute enumeration from the specified <i>stream</i> info the given <i>attr</i>.</p>
<p><b>See also </b>Serializing Qt Data Types.</p>
<!-- @@@operator>> -->
<!-- $$$operator>>$$$operator>>QDataStream&QGeoPositionInfo& -->
<h3 class="fn" id="operator-gt-gt-1"><a name="operator-gt-gt-1"></a><span class="type">QDataStream</span> &<span class="name">operator>></span>(<span class="type">QDataStream</span> &<i>stream</i>, <span class="type"><a href="qgeopositioninfo.html#QGeoPositionInfo">QGeoPositionInfo</a></span> &<i>info</i>)</h3>
<p>Reads a coordinate from the specified <i>stream</i> into the given <i>info</i>.</p>
<p><b>See also </b>Serializing Qt Data Types.</p>
<!-- @@@operator>> -->
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