<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- qnode.cpp --> <title>QNode Class | Qt 3D 5.9</title> <link rel="stylesheet" type="text/css" href="style/offline-simple.css" /> <script type="text/javascript"> document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css"); // loading style sheet breaks anchors that were jumped to before // so force jumping to anchor again setTimeout(function() { var anchor = location.hash; // need to jump to different anchor first (e.g. none) location.hash = "#"; setTimeout(function() { location.hash = anchor; }, 0); }, 0); </script> </head> <body> <div class="header" id="qtdocheader"> <div class="main"> <div class="main-rounded"> <div class="navigationbar"> <table><tr> <td >Qt 5.9</td><td ><a href="qt3d-index.html">Qt 3D</a></td><td ><a href="qt3d-cpp.html">C++ Classes</a></td><td >QNode</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</td> </tr></table> </div> </div> <div class="content"> <div class="line"> <div class="content mainContent"> <div class="sidebar"> <div class="toc"> <h3><a name="toc">Contents</a></h3> <ul> <li class="level1"><a href="#public-types">Public Types</a></li> <li class="level1"><a href="#properties">Properties</a></li> <li class="level1"><a href="#public-functions">Public Functions</a></li> <li class="level1"><a href="#public-slots">Public Slots</a></li> <li class="level1"><a href="#signals">Signals</a></li> <li class="level1"><a href="#protected-functions">Protected 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> </ul> </div> <div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">QNode Class</h1> <span class="small-subtitle">(<a href="qt3dcore-qnode.html">Qt3DCore::QNode</a>)<br/></span> <!-- $$$QNode-brief --> <p><a href="qt3dcore-qnode.html">QNode</a> is the base class of all Qt3D node classes used to build a Qt3D scene. <a href="#details">More...</a></p> <!-- @@@QNode --> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> <span class="preprocessor">#include <QNode></span> </td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += 3dcore</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Since:</td><td class="memItemRight bottomAlign"> Qt 5.5</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherited By:</td><td class="memItemRight bottomAlign"> <p><a href="qt3danimation-qabstractanimationclip.html">Qt3DAnimation::QAbstractAnimationClip</a>, <a href="qt3danimation-qabstractclipblendnode.html">Qt3DAnimation::QAbstractClipBlendNode</a>, <a href="qt3dcore-qcomponent.html">Qt3DCore::QComponent</a>, <a href="qt3dcore-qentity.html">Qt3DCore::QEntity</a>, <a href="qt3dinput-qabstractactioninput.html">Qt3DInput::QAbstractActionInput</a>, <a href="qt3dinput-qabstractaxisinput.html">Qt3DInput::QAbstractAxisInput</a>, <a href="qt3dinput-qabstractphysicaldevice.html">Qt3DInput::QAbstractPhysicalDevice</a>, <a href="qt3dinput-qaction.html">Qt3DInput::QAction</a>, <a href="qt3dinput-qaxis.html">Qt3DInput::QAxis</a>, <a href="qt3dinput-qaxissetting.html">Qt3DInput::QAxisSetting</a>, <a href="qt3drender-qabstracttexture.html">Qt3DRender::QAbstractTexture</a>, <a href="qt3drender-qabstracttextureimage.html">Qt3DRender::QAbstractTextureImage</a>, <a href="qt3drender-qattribute.html">Qt3DRender::QAttribute</a>, <a href="qt3drender-qbuffer.html">Qt3DRender::QBuffer</a>, <a href="qt3drender-qeffect.html">Qt3DRender::QEffect</a>, <a href="qt3drender-qfilterkey.html">Qt3DRender::QFilterKey</a>, <a href="qt3drender-qframegraphnode.html">Qt3DRender::QFrameGraphNode</a>, <a href="qt3drender-qgeometry.html">Qt3DRender::QGeometry</a>, <a href="qt3drender-qparameter.html">Qt3DRender::QParameter</a>, <a href="qt3drender-qpickingsettings.html">Qt3DRender::QPickingSettings</a>, <a href="qt3drender-qrenderpass.html">Qt3DRender::QRenderPass</a>, <a href="qt3drender-qrenderstate.html">Qt3DRender::QRenderState</a>, <a href="qt3drender-qrendertargetoutput.html">Qt3DRender::QRenderTargetOutput</a>, <a href="qt3drender-qshaderprogram.html">Qt3DRender::QShaderProgram</a>, <a href="qt3drender-qtechnique.html">Qt3DRender::QTechnique</a>, and <a href="qt3drender-quick-qscene2d.html">Qt3DRender::Quick::QScene2D</a></p> </td></tr></table></div><ul> <li><a href="qt3dcore-qnode-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="qt3dcore-qnode.html#PropertyTrackingMode-enum">PropertyTrackingMode</a></b> { TrackFinalValues, DontTrackValues, TrackAllValues }</td></tr> </table></div> <a name="properties"></a> <h2 id="properties">Properties</h2> <ul> <li class="fn"><b><a href="qt3dcore-qnode.html#defaultPropertyTrackingMode-prop">defaultPropertyTrackingMode</a></b> : PropertyTrackingMode</li> <li class="fn"><b><a href="qt3dcore-qnode.html#enabled-prop">enabled</a></b> : bool</li> <li class="fn"><b><a href="qt3dcore-qnode.html#parent-prop">parent</a></b> : Qt3DCore::QNode *</li> </ul> <a name="public-functions"></a> <h2 id="public-functions">Public Functions</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#QNode">QNode</a></b>(QNode *<i>parent</i> = nullptr)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#blockNotifications">blockNotifications</a></b>(bool <i>block</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QNodeVector </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#childNodes">childNodes</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#clearPropertyTracking">clearPropertyTracking</a></b>(const QString &<i>propertyName</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#clearPropertyTrackings">clearPropertyTrackings</a></b>()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> PropertyTrackingMode </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#defaultPropertyTrackingMode-prop">defaultPropertyTrackingMode</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QNodeId </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#id">id</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#enabled-prop">isEnabled</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#notificationsBlocked">notificationsBlocked</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QNode *</td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#parent-prop">parentNode</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> PropertyTrackingMode </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#propertyTracking">propertyTracking</a></b>(const QString &<i>propertyName</i>) const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#setPropertyTracking">setPropertyTracking</a></b>(const QString &<i>propertyName</i>, PropertyTrackingMode <i>trackMode</i>)</td></tr> </table></div> <a name="public-slots"></a> <h2 id="public-slots">Public Slots</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#defaultPropertyTrackingMode-prop">setDefaultPropertyTrackingMode</a></b>(PropertyTrackingMode <i>mode</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#enabled-prop">setEnabled</a></b>(bool <i>isEnabled</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#parent-prop">setParent</a></b>(QNode *<i>parent</i>)</td></tr> </table></div> <a name="signals"></a> <h2 id="signals">Signals</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#defaultPropertyTrackingMode-prop">defaultPropertyTrackingModeChanged</a></b>(PropertyTrackingMode <i>mode</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#enabled-prop">enabledChanged</a></b>(bool <i>enabled</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#nodeDestroyed">nodeDestroyed</a></b>()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#parent-prop">parentChanged</a></b>(QObject *<i>parent</i>)</td></tr> </table></div> <a name="protected-functions"></a> <h2 id="protected-functions">Protected Functions</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#notifyObservers">notifyObservers</a></b>(const QSceneChangePtr &<i>change</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#sceneChangeEvent">sceneChangeEvent</a></b>(const QSceneChangePtr &<i>change</i>)</td></tr> </table></div> <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"> typedef </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#QNodePtr-typedef">QNodePtr</a></b></td></tr> <tr><td class="memItemLeft rightAlign topAlign"> typedef </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#QNodeVector-typedef">QNodeVector</a></b></td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QNodeId </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#qIdForNode">qIdForNode</a></b>(QNode *<i>node</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QNodeIdVector </td><td class="memItemRight bottomAlign"><b><a href="qt3dcore-qnode.html#qIdsForNodes">qIdsForNodes</a></b>(const T &<i>nodes</i>)</td></tr> </table></div> <a name="details"></a> <!-- $$$QNode-description --> <div class="descr"> <h2 id="details">Detailed Description</h2> <p><a href="qt3dcore-qnode.html">QNode</a> is the base class of all Qt3D node classes used to build a Qt3D scene.</p> <p>The owernship of <a href="qt3dcore-qnode.html">QNode</a> is determined by the QObject parent/child relationship between nodes. By itself, a <a href="qt3dcore-qnode.html">QNode</a> has no visual appearance and no particular meaning, it is there as a way of building a node based tree structure.</p> <p>The parent of a <a href="qt3dcore-qnode.html">QNode</a> instance can only be another <a href="qt3dcore-qnode.html">QNode</a> instance.</p> <p>Each <a href="qt3dcore-qnode.html">QNode</a> instance has a unique id that allows it to be recognizable from other instances.</p> <p>When properties are defined on a <a href="qt3dcore-qnode.html">QNode</a> subclass, their NOTIFY signal will automatically generate notifications that the Qt3D backend aspects will receive.</p> </div> <p><b>See also </b><a href="qt3dcore-qentity.html">QEntity</a> and <a href="qt3dcore-qcomponent.html">QComponent</a>.</p> <!-- @@@QNode --> <div class="types"> <h2>Member Type Documentation</h2> <!-- $$$PropertyTrackingMode$$$TrackFinalValues$$$DontTrackValues$$$TrackAllValues --> <h3 class="fn" id="PropertyTrackingMode-enum"><a name="PropertyTrackingMode-enum"></a>enum QNode::<span class="name">PropertyTrackingMode</span></h3> <!-- @@@PropertyTrackingMode --> </div> <div class="prop"> <h2>Property Documentation</h2> <!-- $$$defaultPropertyTrackingMode-prop$$$defaultPropertyTrackingMode$$$setDefaultPropertyTrackingModePropertyTrackingMode$$$defaultPropertyTrackingModeChangedPropertyTrackingMode --> <h3 class="fn" id="defaultPropertyTrackingMode-prop"><a name="defaultPropertyTrackingMode-prop"></a><span class="name">defaultPropertyTrackingMode</span> : <span class="type"><a href="qt3dcore-qnode.html#PropertyTrackingMode-enum">PropertyTrackingMode</a></span></h3> <p>Holds the default property tracking mode which determines whether a <a href="qt3dcore-qnode.html">QNode</a> should be listening for property updates. This only applies to properties which haven't been overridden by a call to <a href="qt3dcore-qnode.html#setPropertyTracking">setPropertyTracking</a>.</p> <p>By default it is set to <a href="qt3dcore-qnode.html#PropertyTrackingMode-enum">QNode::TrackFinalValues</a></p> <p><b>Access functions:</b></p> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft topAlign rightAlign"> PropertyTrackingMode </td><td class="memItemRight bottomAlign"><span class="name"><b>defaultPropertyTrackingMode</b></span>() const</td></tr> <tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setDefaultPropertyTrackingMode</b></span>(PropertyTrackingMode <i>mode</i>)</td></tr> </table></div> <p><b>Notifier signal:</b></p> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>defaultPropertyTrackingModeChanged</b></span>(PropertyTrackingMode <i>mode</i>)</td></tr> </table></div> <!-- @@@defaultPropertyTrackingMode --> <!-- $$$enabled-prop$$$isEnabled$$$setEnabledbool$$$enabledChangedbool --> <h3 class="fn" id="enabled-prop"><a name="enabled-prop"></a><span class="name">enabled</span> : <span class="type">bool</span></h3> <p>Holds the <a href="qt3dcore-qnode.html">QNode</a> enabled flag. By default a <a href="qt3dcore-qnode.html">QNode</a> is always enabled.</p> <p><b>Note: </b>the interpretation of what enabled means is aspect-dependent. Even if enabled is set to <code>false</code>, some aspects may still consider the node in some manner. This is documented on a class by class basis.</p><p><b>Access functions:</b></p> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft topAlign rightAlign"> bool </td><td class="memItemRight bottomAlign"><span class="name"><b>isEnabled</b></span>() const</td></tr> <tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setEnabled</b></span>(bool <i>isEnabled</i>)</td></tr> </table></div> <p><b>Notifier signal:</b></p> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>enabledChanged</b></span>(bool <i>enabled</i>)</td></tr> </table></div> <!-- @@@enabled --> <!-- $$$parent-prop$$$parentNode$$$setParentQNode*$$$parentChangedQObject* --> <h3 class="fn" id="parent-prop"><a name="parent-prop"></a><span class="name">parent</span> : <span class="type">Qt3DCore::QNode</span> *</h3> <p>Holds the immediate <a href="qt3dcore-qnode.html">QNode</a> parent, or null if the node has no parent.</p> <p>Setting the parent will notify the backend aspects about current <a href="qt3dcore-qnode.html">QNode</a> instance's parent change.</p> <p><b>Note: </b>if <i>parent</i> happens to be null, this will actually notify that the current <a href="qt3dcore-qnode.html">QNode</a> instance was removed from the scene.</p><p><b>Access functions:</b></p> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft topAlign rightAlign"> QNode *</td><td class="memItemRight bottomAlign"><span class="name"><b>parentNode</b></span>() const</td></tr> <tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setParent</b></span>(QNode *<i>parent</i>)</td></tr> </table></div> <p><b>Notifier signal:</b></p> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>parentChanged</b></span>(QObject *<i>parent</i>)</td></tr> </table></div> <!-- @@@parent --> </div> <div class="func"> <h2>Member Function Documentation</h2> <!-- $$$QNode[overload1]$$$QNodeQNode* --> <h3 class="fn" id="QNode"><a name="QNode"></a>QNode::<span class="name">QNode</span>(<span class="type"><a href="qt3dcore-qnode.html#QNode">QNode</a></span> *<i>parent</i> = nullptr)</h3> <p>Creates a new <a href="qt3dcore-qnode.html">QNode</a> instance with parent <i>parent</i>.</p> <p><b>Note: </b>The backend aspects will be notified that a <a href="qt3dcore-qnode.html">QNode</a> instance is part of the scene only if it has a parent; unless this is the root node of the Qt3D scene.</p><p><b>See also </b><a href="qt3dcore-qnode.html#parent-prop">setParent</a>().</p> <!-- @@@QNode --> <!-- $$$blockNotifications[overload1]$$$blockNotificationsbool --> <h3 class="fn" id="blockNotifications"><a name="blockNotifications"></a><span class="type">bool</span> QNode::<span class="name">blockNotifications</span>(<span class="type">bool</span> <i>block</i>)</h3> <p>If <i>block</i> is <code>true</code>, property change notifications sent by this object to aspects are blocked. If <i>block</i> is <code>false</code>, no such blocking will occur.</p> <p>The return value is the previous value of <a href="qt3dcore-qnode.html#notificationsBlocked">notificationsBlocked</a>().</p> <p>Note that the other notification types will be sent even if the notifications for this object have been blocked.</p> <p><b>See also </b><a href="qt3dcore-qnode.html#notificationsBlocked">notificationsBlocked</a>().</p> <!-- @@@blockNotifications --> <!-- $$$childNodes[overload1]$$$childNodes --> <h3 class="fn" id="childNodes"><a name="childNodes"></a><span class="type"><a href="qt3dcore-qnode.html#QNodeVector-typedef">QNodeVector</a></span> QNode::<span class="name">childNodes</span>() const</h3> <p>Returns a list filled with the <a href="qt3dcore-qnode.html">QNode</a> children of the current <a href="qt3dcore-qnode.html">QNode</a> instance.</p> <!-- @@@childNodes --> <!-- $$$clearPropertyTracking[overload1]$$$clearPropertyTrackingconstQString& --> <h3 class="fn" id="clearPropertyTracking"><a name="clearPropertyTracking"></a><span class="type">void</span> QNode::<span class="name">clearPropertyTracking</span>(const <span class="type">QString</span> &<i>propertyName</i>)</h3> <!-- @@@clearPropertyTracking --> <!-- $$$clearPropertyTrackings[overload1]$$$clearPropertyTrackings --> <h3 class="fn" id="clearPropertyTrackings"><a name="clearPropertyTrackings"></a><span class="type">void</span> QNode::<span class="name">clearPropertyTrackings</span>()</h3> <!-- @@@clearPropertyTrackings --> <!-- $$$id[overload1]$$$id --> <h3 class="fn" id="id"><a name="id"></a><span class="type"><a href="qt3dcore-qnodeid.html">QNodeId</a></span> QNode::<span class="name">id</span>() const</h3> <p>Returns the id that uniquely identifies the <a href="qt3dcore-qnode.html">QNode</a> instance.</p> <!-- @@@id --> <!-- $$$nodeDestroyed[overload1]$$$nodeDestroyed --> <h3 class="fn" id="nodeDestroyed"><a name="nodeDestroyed"></a><code>[signal] </code><span class="type">void</span> QNode::<span class="name">nodeDestroyed</span>()</h3> <p>emitted when the node is destroyed.</p> <!-- @@@nodeDestroyed --> <!-- $$$notificationsBlocked[overload1]$$$notificationsBlocked --> <h3 class="fn" id="notificationsBlocked"><a name="notificationsBlocked"></a><span class="type">bool</span> QNode::<span class="name">notificationsBlocked</span>() const</h3> <p>Returns <code>true</code> if aspect notifications are blocked; otherwise returns <code>false</code>. By default, notifications are <i>not</i> blocked.</p> <p><b>See also </b><a href="qt3dcore-qnode.html#blockNotifications">blockNotifications</a>().</p> <!-- @@@notificationsBlocked --> <!-- $$$notifyObservers[overload1]$$$notifyObserversconstQSceneChangePtr& --> <h3 class="fn" id="notifyObservers"><a name="notifyObservers"></a><code>[protected] </code><span class="type">void</span> QNode::<span class="name">notifyObservers</span>(const <span class="type"><a href="qt3dcore-qscenechange.html#QSceneChangePtr-typedef">QSceneChangePtr</a></span> &<i>change</i>)</h3> <p>Sends the <i>change</i> <a href="qt3dcore-qscenechange.html#QSceneChangePtr-typedef">QSceneChangePtr</a> to any QBackendNodes in the registered aspects that correspond to this <a href="qt3dcore-qnode.html">QNode</a>.</p> <p>For the common case of a QObject property change, <a href="qt3dcore-qnode.html">QNode</a> handles this for you automatically by sending a <a href="qt3dcore-qpropertyupdatedchange.html">QPropertyUpdatedChange</a> event to the backend nodes. You only need to call this function if you wish to send a specific type of change in place of the automatic handling.</p> <!-- @@@notifyObservers --> <!-- $$$propertyTracking[overload1]$$$propertyTrackingconstQString& --> <h3 class="fn" id="propertyTracking"><a name="propertyTracking"></a><span class="type"><a href="qt3dcore-qnode.html#PropertyTrackingMode-enum">PropertyTrackingMode</a></span> QNode::<span class="name">propertyTracking</span>(const <span class="type">QString</span> &<i>propertyName</i>) const</h3> <p><b>See also </b><a href="qt3dcore-qnode.html#setPropertyTracking">setPropertyTracking</a>().</p> <!-- @@@propertyTracking --> <!-- $$$sceneChangeEvent[overload1]$$$sceneChangeEventconstQSceneChangePtr& --> <h3 class="fn" id="sceneChangeEvent"><a name="sceneChangeEvent"></a><code>[virtual protected] </code><span class="type">void</span> QNode::<span class="name">sceneChangeEvent</span>(const <span class="type"><a href="qt3dcore-qscenechange.html#QSceneChangePtr-typedef">QSceneChangePtr</a></span> &<i>change</i>)</h3> <p>Called when one or more backend aspects sends a notification <i>change</i> to the current <a href="qt3dcore-qnode.html">Qt3DCore::QNode</a> instance.</p> <p><b>Note: </b>This method should be reimplemented in your subclasses to properly handle the <i>change</i>.</p><!-- @@@sceneChangeEvent --> <!-- $$$setPropertyTracking[overload1]$$$setPropertyTrackingconstQString&PropertyTrackingMode --> <h3 class="fn" id="setPropertyTracking"><a name="setPropertyTracking"></a><span class="type">void</span> QNode::<span class="name">setPropertyTracking</span>(const <span class="type">QString</span> &<i>propertyName</i>, <span class="type"><a href="qt3dcore-qnode.html#PropertyTrackingMode-enum">PropertyTrackingMode</a></span> <i>trackMode</i>)</h3> <p><b>See also </b><a href="qt3dcore-qnode.html#propertyTracking">propertyTracking</a>().</p> <!-- @@@setPropertyTracking --> </div> <div class="relnonmem"> <h2>Related Non-Members</h2> <!-- $$$QNodePtr --> <h3 class="fn" id="QNodePtr-typedef"><a name="QNodePtr-typedef"></a>typedef Qt3DCore::<span class="name">QNodePtr</span></h3> <p>A shared pointer for <a href="qt3dcore-qnode.html">QNode</a>.</p> <!-- @@@QNodePtr --> <!-- $$$QNodeVector --> <h3 class="fn" id="QNodeVector-typedef"><a name="QNodeVector-typedef"></a>typedef Qt3DCore::<span class="name">QNodeVector</span></h3> <p>List of <a href="qt3dcore-qnode.html">QNode</a> pointers.</p> <!-- @@@QNodeVector --> <!-- $$$qIdForNode[overload1]$$$qIdForNodeQNode* --> <h3 class="fn" id="qIdForNode"><a name="qIdForNode"></a><span class="type"><a href="qt3dcore-qnodeid.html">QNodeId</a></span> Qt3DCore::<span class="name">qIdForNode</span>(<span class="type"><a href="qt3dcore-qnode.html#QNode">QNode</a></span> *<i>node</i>)</h3> <p>Returns node id for <i>node</i>.</p> <!-- @@@qIdForNode --> <!-- $$$qIdsForNodes[overload1]$$$qIdsForNodesconstT& --> <h3 class="fn" id="qIdsForNodes"><a name="qIdsForNodes"></a><span class="type">QNodeIdVector</span> Qt3DCore::<span class="name">qIdsForNodes</span>(const <span class="type">T</span> &<i>nodes</i>)</h3> <p>Returns vector of node ids for <i>nodes</i>.</p> <!-- @@@qIdsForNodes --> </div> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2017 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners.<br> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. </p> </div> </body> </html>