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<!DOCTYPE concept
  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
<concept id="GUID-C668AEF1-B7E2-53BB-A7EF-B92CA253DE2F" xml:lang="en"><title>Preventing
closure of a handle</title><shortdesc>This document describes how to make a handle not closable.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
<p>A handle may be marked as not closable. This is an obscure but important
property of handles and their associated Kernel objects.</p>
<p>A handle is marked as not closable when the handle-number has the enumerator <codeph>CObjectIx::ENoClose</codeph> ORed
into it. For example, the current thread is always marked as not closable.</p>
</conbody></concept>