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&#160;<span id="projectnumber">6.0</span>
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<a href="#pub-methods">Public Member Functions</a> &#124;
<a href="#pub-static-methods">Static Public Member Functions</a> &#124;
<a href="class_o_n___class_id-members.html">List of all members</a> </div>
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<div class="title">ON_ClassId Class Reference</div> </div>
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<p>used for runtime class identification
<a href="class_o_n___class_id.html#details">More...</a></p>
<p><code>#include &lt;<a class="el" href="opennurbs__object_8h_source.html">opennurbs_object.h</a>&gt;</code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a54d44e5890083a7c0fd477759d1d43e9"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_o_n___class_id.html#a54d44e5890083a7c0fd477759d1d43e9">ON_ClassId</a> (const char *sClassName, const char *sBaseClassName, class <a class="el" href="class_o_n___object.html">ON_Object</a> *(*create)(), const char *sUUID)</td></tr>
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<tr class="memitem:a9118867ca2ca89f90d20c6b2746224cf"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_o_n___class_id.html#a9118867ca2ca89f90d20c6b2746224cf">~ON_ClassId</a> ()</td></tr>
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<tr class="memitem:a2b5ace262e3fe33a154d59a34fcc9744"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="class_o_n___class_id.html">ON_ClassId</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_o_n___class_id.html#a2b5ace262e3fe33a154d59a34fcc9744">BaseClass</a> () const</td></tr>
<tr class="separator:a2b5ace262e3fe33a154d59a34fcc9744"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a213c017c6eb384425856c8fbcf6658e8"><td class="memItemLeft" align="right" valign="top">const char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_o_n___class_id.html#a213c017c6eb384425856c8fbcf6658e8">BaseClassName</a> () const</td></tr>
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<tr class="memitem:a06c2b9c1f70b797fdb586fc3d6768ef5"><td class="memItemLeft" align="right" valign="top">unsigned int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_o_n___class_id.html#a06c2b9c1f70b797fdb586fc3d6768ef5">ClassIdVersion</a> () const</td></tr>
<tr class="separator:a06c2b9c1f70b797fdb586fc3d6768ef5"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7e5486ffb5f4aa9c069808032875df10"><td class="memItemLeft" align="right" valign="top">const char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_o_n___class_id.html#a7e5486ffb5f4aa9c069808032875df10">ClassName</a> () const</td></tr>
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<tr class="memitem:a9f29ec11f87ee922648c4cee3937d270"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_o_n___object.html">ON_Object</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_o_n___class_id.html#a9f29ec11f87ee922648c4cee3937d270">Create</a> () const</td></tr>
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<tr class="memitem:aec97b48a16781f306ca2d9eb126722a2"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_o_n___class_id.html#aec97b48a16781f306ca2d9eb126722a2">IsDerivedFrom</a> (const <a class="el" href="class_o_n___class_id.html">ON_ClassId</a> *potential_parent) const</td></tr>
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<tr class="memitem:af522a7bce6100fca29e9161ffbcd8dc3"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_o_n___class_id.html#af522a7bce6100fca29e9161ffbcd8dc3">Mark</a> () const</td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr class="memitem:aebdde874ae6c99f1f09fcc0d52ee01d4"><td class="memItemLeft" align="right" valign="top">static const <a class="el" href="class_o_n___class_id.html">ON_ClassId</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_o_n___class_id.html#aebdde874ae6c99f1f09fcc0d52ee01d4">ClassId</a> (const char *sClassName)</td></tr>
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<tr class="memitem:ab69d80706421aa3212dce90100d6be34"><td class="memItemLeft" align="right" valign="top">static const <a class="el" href="class_o_n___class_id.html">ON_ClassId</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_o_n___class_id.html#ab69d80706421aa3212dce90100d6be34">ClassId</a> (<a class="el" href="struct_o_n___u_u_i_d__struct.html">ON_UUID</a> class_uuid)</td></tr>
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<tr class="memitem:a9ca575224586a8d6a7b82a0bbe13aa32"><td class="memItemLeft" align="right" valign="top">static void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_o_n___class_id.html#a9ca575224586a8d6a7b82a0bbe13aa32">Dump</a> (<a class="el" href="class_o_n___text_log.html">ON_TextLog</a> &amp;dump)</td></tr>
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<tr class="memitem:a6388d6acfbfdc85fef591c09a7f1dfbf"><td class="memItemLeft" align="right" valign="top">static int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_o_n___class_id.html#a6388d6acfbfdc85fef591c09a7f1dfbf">IncrementMark</a> ()</td></tr>
<tr class="separator:a6388d6acfbfdc85fef591c09a7f1dfbf"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6ea9a03a2f5203ef9f42606cfa0ab0cb"><td class="memItemLeft" align="right" valign="top">static const <a class="el" href="class_o_n___class_id.html">ON_ClassId</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_o_n___class_id.html#a6ea9a03a2f5203ef9f42606cfa0ab0cb">LastClassId</a> ()</td></tr>
<tr class="separator:a6ea9a03a2f5203ef9f42606cfa0ab0cb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a8b01403171a9c6c88a9fe8fc15eaa969"><td class="memItemLeft" align="right" valign="top">static int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_o_n___class_id.html#a8b01403171a9c6c88a9fe8fc15eaa969">Purge</a> (int mark)</td></tr>
<tr class="separator:a8b01403171a9c6c88a9fe8fc15eaa969"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aaed744675535eb780d4fd9311eae74cd"><td class="memItemLeft" align="right" valign="top">static bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_o_n___class_id.html#aaed744675535eb780d4fd9311eae74cd">PurgeAfter</a> (const <a class="el" href="class_o_n___class_id.html">ON_ClassId</a> *pClassId)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>used for runtime class identification </p>
<p>Description: OpenNURBS classes derived from <a class="el" href="class_o_n___object.html">ON_Object</a> use <a class="el" href="class_o_n___class_id.html" title="used for runtime class identification ">ON_ClassId</a> to store run-time type information <br />
The ON_OBJECT_DECLARE and ON_OBJECT_IMPLEMENT macros generate the code that creates and initializes the <a class="el" href="class_o_n___class_id.html" title="used for runtime class identification ">ON_ClassId</a> for each class.</p>
<p>The <a class="el" href="class_o_n___object.html#afe5367058a90545e81cd79b78103175d">ON_Object::IsKindOf()</a> and ON_Object::Cast() functions use this run-time type information. </p>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a54d44e5890083a7c0fd477759d1d43e9">&#9670;&nbsp;</a></span>ON_ClassId()</h2>
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<td class="memname">ON_ClassId::ON_ClassId </td>
<td>(</td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>sClassName</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>sBaseClassName</em>, </td>
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<td></td>
<td class="paramtype">class <a class="el" href="class_o_n___object.html">ON_Object</a> *(*)()&#160;</td>
<td class="paramname"><em>create</em>, </td>
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<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>sUUID</em>&#160;</td>
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<td>)</td>
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<p>Description: This constructor is called to initialize each class id. The call is generated by the ON_OBJECT_IMPLEMENT macro.</p>
<p>Parameters: sClassName - [in] name of the class (like <a class="el" href="class_o_n___geometry.html">ON_Geometry</a>) sBaseClassName - [in] name of baseclass (like <a class="el" href="class_o_n___object.html">ON_Object</a>) create - [in] function to create a new object(like CreateNewON_Geometry()) sUUID - [in] UUID in registry format from Windows guidgen.exe </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a9118867ca2ca89f90d20c6b2746224cf">&#9670;&nbsp;</a></span>~ON_ClassId()</h2>
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<td class="memname">ON_ClassId::~ON_ClassId </td>
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<h2 class="groupheader">Member Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a2b5ace262e3fe33a154d59a34fcc9744">&#9670;&nbsp;</a></span>BaseClass()</h2>
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<td class="memname">const <a class="el" href="class_o_n___class_id.html">ON_ClassId</a>* ON_ClassId::BaseClass </td>
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<td class="paramname"></td><td>)</td>
<td> const</td>
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<p>Returns: base class id </p>
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<a id="a213c017c6eb384425856c8fbcf6658e8"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a213c017c6eb384425856c8fbcf6658e8">&#9670;&nbsp;</a></span>BaseClassName()</h2>
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<td class="memname">const char* ON_ClassId::BaseClassName </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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<p>Returns: base class name </p>
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<h2 class="memtitle"><span class="permalink"><a href="#aebdde874ae6c99f1f09fcc0d52ee01d4">&#9670;&nbsp;</a></span>ClassId() <span class="overload">[1/2]</span></h2>
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<td class="memname">static const <a class="el" href="class_o_n___class_id.html">ON_ClassId</a>* ON_ClassId::ClassId </td>
<td>(</td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>sClassName</em></td><td>)</td>
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<p>Description: Gets a class's <a class="el" href="class_o_n___class_id.html" title="used for runtime class identification ">ON_ClassId</a> from the class's name. Parameters: sClassName - [in] name of class Returns: Pointer to the class's <a class="el" href="class_o_n___class_id.html" title="used for runtime class identification ">ON_ClassId</a>. Example: const ON_ClassId* brep_id = ON_CLassId::ClassId("ON_Brep"); </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ab69d80706421aa3212dce90100d6be34">&#9670;&nbsp;</a></span>ClassId() <span class="overload">[2/2]</span></h2>
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<td class="memname">static const <a class="el" href="class_o_n___class_id.html">ON_ClassId</a>* ON_ClassId::ClassId </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_o_n___u_u_i_d__struct.html">ON_UUID</a>&#160;</td>
<td class="paramname"><em>class_uuid</em></td><td>)</td>
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<p>Description: Gets a class's <a class="el" href="class_o_n___class_id.html" title="used for runtime class identification ">ON_ClassId</a> from the class's uuid. Parameters: class_uuid - [in] uuid for the class Returns: Pointer to the class's <a class="el" href="class_o_n___class_id.html" title="used for runtime class identification ">ON_ClassId</a>. Example: ON_UUID brep_uuid = ON_UuidFromString("60B5DBC5-E660-11d3-BFE4-0010830122F0"); const ON_ClassId* brep_id = ON_ClassId::ClassId(brep_uuid); </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a06c2b9c1f70b797fdb586fc3d6768ef5">&#9670;&nbsp;</a></span>ClassIdVersion()</h2>
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<td class="memname">unsigned int ON_ClassId::ClassIdVersion </td>
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<td> const</td>
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<h2 class="memtitle"><span class="permalink"><a href="#a7e5486ffb5f4aa9c069808032875df10">&#9670;&nbsp;</a></span>ClassName()</h2>
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<td class="memname">const char* ON_ClassId::ClassName </td>
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<p>Returns: class name </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a9f29ec11f87ee922648c4cee3937d270">&#9670;&nbsp;</a></span>Create()</h2>
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<td class="memname"><a class="el" href="class_o_n___object.html">ON_Object</a>* ON_ClassId::Create </td>
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<p>Descrption: Use the default constructor to create an instance of the class on the heap. Returns: Null or a pointer to an instance of the class created using new and the class's default constructor. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ac188318d4a8956db15f88bcaf7c44017">&#9670;&nbsp;</a></span>CurrentMark()</h2>
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<td class="memname">static int ON_ClassId::CurrentMark </td>
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<h2 class="memtitle"><span class="permalink"><a href="#a9ca575224586a8d6a7b82a0bbe13aa32">&#9670;&nbsp;</a></span>Dump()</h2>
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<td class="memname">static void ON_ClassId::Dump </td>
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<td class="paramtype"><a class="el" href="class_o_n___text_log.html">ON_TextLog</a> &amp;&#160;</td>
<td class="paramname"><em>dump</em></td><td>)</td>
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<p>Description: Dumps the <a class="el" href="class_o_n___class_id.html" title="used for runtime class identification ">ON_ClassId</a> list Parameters: dump - [in] destination for the text dump. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a6388d6acfbfdc85fef591c09a7f1dfbf">&#9670;&nbsp;</a></span>IncrementMark()</h2>
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<td class="memname">static int ON_ClassId::IncrementMark </td>
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<p>Description: Each class derived from <a class="el" href="class_o_n___object.html">ON_Object</a> has a corresponding <a class="el" href="class_o_n___class_id.html" title="used for runtime class identification ">ON_ClassId</a> stored in a linked list and the class is marked with an integer value. <a class="el" href="class_o_n___class_id.html#a6388d6acfbfdc85fef591c09a7f1dfbf">ON_ClassId::IncrementMark()</a> increments the value used to mark new classes and returns the new marking value. Returns: Value that will be used to mark all future ON_ClassIds. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#aec97b48a16781f306ca2d9eb126722a2">&#9670;&nbsp;</a></span>IsDerivedFrom()</h2>
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<td class="memname">bool ON_ClassId::IsDerivedFrom </td>
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<p>Description: Determine if the class associated with this <a class="el" href="class_o_n___class_id.html" title="used for runtime class identification ">ON_ClassId</a> is derived from another class. Parameters: potential_parent - [in] Class to test as parent. Returns: true if this is derived from potential_parent. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a6ea9a03a2f5203ef9f42606cfa0ab0cb">&#9670;&nbsp;</a></span>LastClassId()</h2>
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<td class="memname">static const <a class="el" href="class_o_n___class_id.html">ON_ClassId</a>* ON_ClassId::LastClassId </td>
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<h2 class="memtitle"><span class="permalink"><a href="#af522a7bce6100fca29e9161ffbcd8dc3">&#9670;&nbsp;</a></span>Mark()</h2>
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<td class="memname">int ON_ClassId::Mark </td>
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<p>Description: Opennurbs classes have a mark value of 0. Core Rhino classes have a mark value of 1. Rhino plug-in classes have a mark value of &gt; 1. Returns: Class mark value </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a8b01403171a9c6c88a9fe8fc15eaa969">&#9670;&nbsp;</a></span>Purge()</h2>
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<td class="memname">static int ON_ClassId::Purge </td>
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<p>Description: Each class derived from <a class="el" href="class_o_n___object.html">ON_Object</a> has a corresponding <a class="el" href="class_o_n___class_id.html" title="used for runtime class identification ">ON_ClassId</a> stored in a linked list. If a class definition is going to disappear (which happens when the derived object definition is in a DLL that uses openNURBS as a DLL and the DLL containing the derived object's definition is unloaded), then the class's <a class="el" href="class_o_n___class_id.html" title="used for runtime class identification ">ON_ClassId</a> needs to be removed from the class list. ON_ClassId::Purge( mark ) removes all ON_ClassIds with a a prescribed mark and returns the number of classes that were purged. <br />
Parameters: mark - [in] All ON_ClassIds with this mark will be purged. Returns: Number of classes that were purged. Example: ///&lt; Call <a class="el" href="class_o_n___class_id.html#a6388d6acfbfdc85fef591c09a7f1dfbf">ON_ClassId::IncrementMark()</a> BEFORE loading MY.DLL. int my_dll_classid_mark = <a class="el" href="class_o_n___class_id.html#a6388d6acfbfdc85fef591c09a7f1dfbf">ON_ClassId::IncrementMark()</a>; load MY.DLL with classes derived from <a class="el" href="class_o_n___object.html">ON_Object</a> ... ///&lt; Call <a class="el" href="class_o_n___class_id.html#a8b01403171a9c6c88a9fe8fc15eaa969">ON_ClassId::Purge()</a> BEFORE unloading MY.DLL. ON_ClassId::Purge( my_dll_classid_mark ); unload MY.DLL </p>
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<h2 class="memtitle"><span class="permalink"><a href="#aaed744675535eb780d4fd9311eae74cd">&#9670;&nbsp;</a></span>PurgeAfter()</h2>
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<td class="memname">static bool ON_ClassId::PurgeAfter </td>
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<h2 class="memtitle"><span class="permalink"><a href="#a48cc5db89ba692ec60d3e53b4ba8fc6b">&#9670;&nbsp;</a></span>Uuid()</h2>
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<td class="memname"><a class="el" href="struct_o_n___u_u_i_d__struct.html">ON_UUID</a> ON_ClassId::Uuid </td>
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<p>Returns: class uuid </p>
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