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+<html>
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+<title>windows::basic_overlapped_handle::lowest_layer_type</title>
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+</div>
+<div class="section">
+<div class="titlepage"><div><div><h4 class="title">
+<a name="boost_asio.reference.windows__basic_overlapped_handle.lowest_layer_type"></a><a class="link" href="lowest_layer_type.html" title="windows::basic_overlapped_handle::lowest_layer_type">windows::basic_overlapped_handle::lowest_layer_type</a>
+</h4></div></div></div>
+<p>
+ <a class="indexterm" name="boost_asio.indexterm.windows__basic_overlapped_handle.lowest_layer_type"></a>
+An
+ overlapped_handle is always the lowest layer.
+ </p>
+<pre class="programlisting">typedef basic_overlapped_handle lowest_layer_type;
+</pre>
+<h6>
+<a name="boost_asio.reference.windows__basic_overlapped_handle.lowest_layer_type.h0"></a>
+ <span class="phrase"><a name="boost_asio.reference.windows__basic_overlapped_handle.lowest_layer_type.types"></a></span><a class="link" href="lowest_layer_type.html#boost_asio.reference.windows__basic_overlapped_handle.lowest_layer_type.types">Types</a>
+ </h6>
+<div class="informaltable"><table class="table">
+<colgroup>
+<col>
+<col>
+</colgroup>
+<thead><tr>
+<th>
+ <p>
+ Name
+ </p>
+ </th>
+<th>
+ <p>
+ Description
+ </p>
+ </th>
+</tr></thead>
+<tbody>
+<tr>
+<td>
+ <p>
+ <a class="link" href="executor_type.html" title="windows::basic_overlapped_handle::executor_type"><span class="bold"><strong>executor_type</strong></span></a>
+ </p>
+ </td>
+<td>
+ <p>
+ The type of the executor associated with the object.
+ </p>
+ </td>
+</tr>
+<tr>
+<td>
+ <p>
+ <a class="link" href="lowest_layer_type.html" title="windows::basic_overlapped_handle::lowest_layer_type"><span class="bold"><strong>lowest_layer_type</strong></span></a>
+ </p>
+ </td>
+<td>
+ <p>
+ An overlapped_handle is always the lowest layer.
+ </p>
+ </td>
+</tr>
+<tr>
+<td>
+ <p>
+ <a class="link" href="native_handle_type.html" title="windows::basic_overlapped_handle::native_handle_type"><span class="bold"><strong>native_handle_type</strong></span></a>
+ </p>
+ </td>
+<td>
+ <p>
+ The native representation of a handle.
+ </p>
+ </td>
+</tr>
+</tbody>
+</table></div>
+<h6>
+<a name="boost_asio.reference.windows__basic_overlapped_handle.lowest_layer_type.h1"></a>
+ <span class="phrase"><a name="boost_asio.reference.windows__basic_overlapped_handle.lowest_layer_type.member_functions"></a></span><a class="link" href="lowest_layer_type.html#boost_asio.reference.windows__basic_overlapped_handle.lowest_layer_type.member_functions">Member
+ Functions</a>
+ </h6>
+<div class="informaltable"><table class="table">
+<colgroup>
+<col>
+<col>
+</colgroup>
+<thead><tr>
+<th>
+ <p>
+ Name
+ </p>
+ </th>
+<th>
+ <p>
+ Description
+ </p>
+ </th>
+</tr></thead>
+<tbody>
+<tr>
+<td>
+ <p>
+ <a class="link" href="assign.html" title="windows::basic_overlapped_handle::assign"><span class="bold"><strong>assign</strong></span></a>
+ </p>
+ </td>
+<td>
+ <p>
+ Assign an existing native handle to the handle.
+ </p>
+ </td>
+</tr>
+<tr>
+<td>
+ <p>
+ <a class="link" href="basic_overlapped_handle.html" title="windows::basic_overlapped_handle::basic_overlapped_handle"><span class="bold"><strong>basic_overlapped_handle</strong></span></a>
+ </p>
+ </td>
+<td>
+ <p>
+ Construct an overlapped handle without opening it. <br> <span class="silver"> &#8212;</span><br>
+ Construct an overlapped handle on an existing native handle.
+ <br> <span class="silver"> &#8212;</span><br> Move-construct an overlapped handle from another.
+ </p>
+ </td>
+</tr>
+<tr>
+<td>
+ <p>
+ <a class="link" href="cancel.html" title="windows::basic_overlapped_handle::cancel"><span class="bold"><strong>cancel</strong></span></a>
+ </p>
+ </td>
+<td>
+ <p>
+ Cancel all asynchronous operations associated with the handle.
+ </p>
+ </td>
+</tr>
+<tr>
+<td>
+ <p>
+ <a class="link" href="close.html" title="windows::basic_overlapped_handle::close"><span class="bold"><strong>close</strong></span></a>
+ </p>
+ </td>
+<td>
+ <p>
+ Close the handle.
+ </p>
+ </td>
+</tr>
+<tr>
+<td>
+ <p>
+ <a class="link" href="get_executor.html" title="windows::basic_overlapped_handle::get_executor"><span class="bold"><strong>get_executor</strong></span></a>
+ </p>
+ </td>
+<td>
+ <p>
+ Get the executor associated with the object.
+ </p>
+ </td>
+</tr>
+<tr>
+<td>
+ <p>
+ <a class="link" href="is_open.html" title="windows::basic_overlapped_handle::is_open"><span class="bold"><strong>is_open</strong></span></a>
+ </p>
+ </td>
+<td>
+ <p>
+ Determine whether the handle is open.
+ </p>
+ </td>
+</tr>
+<tr>
+<td>
+ <p>
+ <a class="link" href="lowest_layer.html" title="windows::basic_overlapped_handle::lowest_layer"><span class="bold"><strong>lowest_layer</strong></span></a>
+ </p>
+ </td>
+<td>
+ <p>
+ Get a reference to the lowest layer. <br> <span class="silver"> &#8212;</span><br> Get a const
+ reference to the lowest layer.
+ </p>
+ </td>
+</tr>
+<tr>
+<td>
+ <p>
+ <a class="link" href="native_handle.html" title="windows::basic_overlapped_handle::native_handle"><span class="bold"><strong>native_handle</strong></span></a>
+ </p>
+ </td>
+<td>
+ <p>
+ Get the native handle representation.
+ </p>
+ </td>
+</tr>
+<tr>
+<td>
+ <p>
+ <a class="link" href="operator_eq_.html" title="windows::basic_overlapped_handle::operator="><span class="bold"><strong>operator=</strong></span></a>
+ </p>
+ </td>
+<td>
+ <p>
+ Move-assign an overlapped handle from another.
+ </p>
+ </td>
+</tr>
+</tbody>
+</table></div>
+<h6>
+<a name="boost_asio.reference.windows__basic_overlapped_handle.lowest_layer_type.h2"></a>
+ <span class="phrase"><a name="boost_asio.reference.windows__basic_overlapped_handle.lowest_layer_type.protected_member_functions"></a></span><a class="link" href="lowest_layer_type.html#boost_asio.reference.windows__basic_overlapped_handle.lowest_layer_type.protected_member_functions">Protected
+ Member Functions</a>
+ </h6>
+<div class="informaltable"><table class="table">
+<colgroup>
+<col>
+<col>
+</colgroup>
+<thead><tr>
+<th>
+ <p>
+ Name
+ </p>
+ </th>
+<th>
+ <p>
+ Description
+ </p>
+ </th>
+</tr></thead>
+<tbody><tr>
+<td>
+ <p>
+ <a class="link" href="_basic_overlapped_handle.html" title="windows::basic_overlapped_handle::~basic_overlapped_handle"><span class="bold"><strong>~basic_overlapped_handle</strong></span></a>
+ </p>
+ </td>
+<td>
+ <p>
+ Protected destructor to prevent deletion through this type.
+ </p>
+ </td>
+</tr></tbody>
+</table></div>
+<h6>
+<a name="boost_asio.reference.windows__basic_overlapped_handle.lowest_layer_type.h3"></a>
+ <span class="phrase"><a name="boost_asio.reference.windows__basic_overlapped_handle.lowest_layer_type.protected_data_members"></a></span><a class="link" href="lowest_layer_type.html#boost_asio.reference.windows__basic_overlapped_handle.lowest_layer_type.protected_data_members">Protected
+ Data Members</a>
+ </h6>
+<div class="informaltable"><table class="table">
+<colgroup>
+<col>
+<col>
+</colgroup>
+<thead><tr>
+<th>
+ <p>
+ Name
+ </p>
+ </th>
+<th>
+ <p>
+ Description
+ </p>
+ </th>
+</tr></thead>
+<tbody><tr>
+<td>
+ <p>
+ <a class="link" href="impl_.html" title="windows::basic_overlapped_handle::impl_"><span class="bold"><strong>impl_</strong></span></a>
+ </p>
+ </td>
+<td>
+ </td>
+</tr></tbody>
+</table></div>
+<p>
+ The <a class="link" href="../windows__overlapped_handle.html" title="windows::overlapped_handle"><code class="computeroutput">windows::overlapped_handle</code></a>
+ class provides the ability to wrap a Windows handle. The underlying object
+ referred to by the handle must support overlapped I/O.
+ </p>
+<h6>
+<a name="boost_asio.reference.windows__basic_overlapped_handle.lowest_layer_type.h4"></a>
+ <span class="phrase"><a name="boost_asio.reference.windows__basic_overlapped_handle.lowest_layer_type.thread_safety"></a></span><a class="link" href="lowest_layer_type.html#boost_asio.reference.windows__basic_overlapped_handle.lowest_layer_type.thread_safety">Thread
+ Safety</a>
+ </h6>
+<p>
+ <span class="emphasis"><em>Distinct</em></span> <span class="emphasis"><em>objects:</em></span> Safe.
+ </p>
+<p>
+ <span class="emphasis"><em>Shared</em></span> <span class="emphasis"><em>objects:</em></span> Unsafe.
+ </p>
+<h6>
+<a name="boost_asio.reference.windows__basic_overlapped_handle.lowest_layer_type.h5"></a>
+ <span class="phrase"><a name="boost_asio.reference.windows__basic_overlapped_handle.lowest_layer_type.requirements"></a></span><a class="link" href="lowest_layer_type.html#boost_asio.reference.windows__basic_overlapped_handle.lowest_layer_type.requirements">Requirements</a>
+ </h6>
+<p>
+ <span class="emphasis"><em>Header: </em></span><code class="literal">boost/asio/windows/basic_overlapped_handle.hpp</code>
+ </p>
+<p>
+ <span class="emphasis"><em>Convenience header: </em></span><code class="literal">boost/asio.hpp</code>
+ </p>
+</div>
+<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
+<td align="left"></td>
+<td align="right"><div class="copyright-footer">Copyright &#169; 2003-2019 Christopher M. Kohlhoff<p>
+ Distributed under the Boost Software License, Version 1.0. (See accompanying
+ file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
+ </p>
+</div></td>
+</tr></table>
+<hr>
+<div class="spirit-nav">
+<a accesskey="p" href="lowest_layer/overload2.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../windows__basic_overlapped_handle.html"><img src="../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../boost_asio.html"><img src="../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="native_handle.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a>
+</div>
+</body>
+</html>