<div class="content" name="OBJECTID" uuid="653f80a3-6585-4cca-bb7f-5154b4ad0fab"><p>The OBJECTID structure is used to uniquely distinguish
objects of the same type within the message queuing system. The structure has
two identifiers: a group identifier and an object identifier.</p><dl>
<dd>
<div><pre> typedef struct _OBJECTID {
   GUID Lineage;
   DWORD Uniquifier;
 } OBJECTID;
</pre></div>
</dd></dl><p><b>Lineage:</b>  A <a href="../ms-dtyp/49e490b8-f972-45d6-a3a4-99f924998d97" data-linktype="relative-path">GUID</a> (as
specified in <a href="../ms-dtyp/cca27429-5689-4a16-b2b4-9325d93e4ba2" data-linktype="relative-path">[MS-DTYP]</a>
section <a href="../ms-dtyp/4926e530-816e-41c2-b251-ec5c7aca018a" data-linktype="relative-path">2.3.4</a>)
value that identifies the group to which an object belongs. A group is a
protocol-specific concept. For instance, it can be the identifier of the object
owner, or it can be the identifier of the source where the objects originate.</p><p><b>Uniquifier:</b>  A <a href="../ms-dtyp/262627d8-3418-4627-9218-4ffe110850b2" data-linktype="relative-path">DWORD</a>
value that identifies the object within the group.</p></div>