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27 <a name="boost_asio.reference.windows__basic_object_handle.cancel.overload1"></a><a class="link" href="overload1.html" title="windows::basic_object_handle::cancel (1 of 2 overloads)">windows::basic_object_handle::cancel
28           (1 of 2 overloads)</a>
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30 <p>
31             <span class="emphasis"><em>Inherited from windows::basic_handle.</em></span>
32           </p>
33 <p>
34             Cancel all asynchronous operations associated with the handle.
35           </p>
36 <pre class="programlisting"><span class="keyword">void</span> <span class="identifier">cancel</span><span class="special">();</span>
37 </pre>
38 <p>
39             This function causes all outstanding asynchronous read or write operations
40             to finish immediately, and the handlers for cancelled operations will
41             be passed the <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">asio</span><span class="special">::</span><span class="identifier">error</span><span class="special">::</span><span class="identifier">operation_aborted</span></code> error.
42           </p>
43 <h6>
44 <a name="boost_asio.reference.windows__basic_object_handle.cancel.overload1.h0"></a>
45             <span class="phrase"><a name="boost_asio.reference.windows__basic_object_handle.cancel.overload1.exceptions"></a></span><a class="link" href="overload1.html#boost_asio.reference.windows__basic_object_handle.cancel.overload1.exceptions">Exceptions</a>
46           </h6>
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48 <p class="title"><b></b></p>
49 <dl class="variablelist">
50 <dt><span class="term">boost::system::system_error</span></dt>
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52                   Thrown on failure.
53                 </p></dd>
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