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  24 </div>
  25 <div class="section">
  26 <div class="titlepage"><div><div><h4 class="title">
  27 <a name="boost_asio.reference.windows__basic_random_access_handle.lowest_layer_type"></a><a class="link" href="lowest_layer_type.html" title="windows::basic_random_access_handle::lowest_layer_type">windows::basic_random_access_handle::lowest_layer_type</a>
  28 </h4></div></div></div>
  29 <p>
  30           <span class="emphasis"><em>Inherited from windows::basic_handle.</em></span>
  31         </p>
  32 <p>
  33           <a class="indexterm" name="id1616806"></a>
  34 A <a class="link" href="../windows__basic_handle.html" title="windows::basic_handle"><code class="computeroutput"><span class="identifier">windows</span><span class="special">::</span><span class="identifier">basic_handle</span></code></a> is always the lowest
  35           layer.
  36         </p>
  37 <pre class="programlisting"><span class="keyword">typedef</span> <span class="identifier">basic_handle</span><span class="special">&lt;</span> <span class="identifier">RandomAccessHandleService</span> <span class="special">&gt;</span> <span class="identifier">lowest_layer_type</span><span class="special">;</span>
  38 </pre>
  39 <h6>
  40 <a name="boost_asio.reference.windows__basic_random_access_handle.lowest_layer_type.h0"></a>
  41           <span><a name="boost_asio.reference.windows__basic_random_access_handle.lowest_layer_type.types"></a></span><a class="link" href="lowest_layer_type.html#boost_asio.reference.windows__basic_random_access_handle.lowest_layer_type.types">Types</a>
  42         </h6>
  43 <div class="informaltable"><table class="table">
  44 <colgroup>
  45 <col>
  46 <col>
  47 </colgroup>
  48 <thead><tr>
  49 <th>
  50                   <p>
  51                     Name
  52                   </p>
  53                 </th>
  54 <th>
  55                   <p>
  56                     Description
  57                   </p>
  58                 </th>
  59 </tr></thead>
  60 <tbody>
  61 <tr>
  62 <td>
  63                   <p>
  64                     <a class="link" href="../windows__basic_handle/implementation_type.html" title="windows::basic_handle::implementation_type"><span class="bold"><strong>implementation_type</strong></span></a>
  65                   </p>
  66                 </td>
  67 <td>
  68                   <p>
  69                     The underlying implementation type of I/O object.
  70                   </p>
  71                 </td>
  72 </tr>
  73 <tr>
  74 <td>
  75                   <p>
  76                     <a class="link" href="../windows__basic_handle/lowest_layer_type.html" title="windows::basic_handle::lowest_layer_type"><span class="bold"><strong>lowest_layer_type</strong></span></a>
  77                   </p>
  78                 </td>
  79 <td>
  80                   <p>
  81                     A basic_handle is always the lowest layer.
  82                   </p>
  83                 </td>
  84 </tr>
  85 <tr>
  86 <td>
  87                   <p>
  88                     <a class="link" href="../windows__basic_handle/native_handle_type.html" title="windows::basic_handle::native_handle_type"><span class="bold"><strong>native_handle_type</strong></span></a>
  89                   </p>
  90                 </td>
  91 <td>
  92                   <p>
  93                     The native representation of a handle.
  94                   </p>
  95                 </td>
  96 </tr>
  97 <tr>
  98 <td>
  99                   <p>
 100                     <a class="link" href="../windows__basic_handle/native_type.html" title="windows::basic_handle::native_type"><span class="bold"><strong>native_type</strong></span></a>
 101                   </p>
 102                 </td>
 103 <td>
 104                   <p>
 105                     (Deprecated: Use native_handle_type.) The native representation
 106                     of a handle.
 107                   </p>
 108                 </td>
 109 </tr>
 110 <tr>
 111 <td>
 112                   <p>
 113                     <a class="link" href="../windows__basic_handle/service_type.html" title="windows::basic_handle::service_type"><span class="bold"><strong>service_type</strong></span></a>
 114                   </p>
 115                 </td>
 116 <td>
 117                   <p>
 118                     The type of the service that will be used to provide I/O operations.
 119                   </p>
 120                 </td>
 121 </tr>
 122 </tbody>
 123 </table></div>
 124 <h6>
 125 <a name="boost_asio.reference.windows__basic_random_access_handle.lowest_layer_type.h1"></a>
 126           <span><a name="boost_asio.reference.windows__basic_random_access_handle.lowest_layer_type.member_functions"></a></span><a class="link" href="lowest_layer_type.html#boost_asio.reference.windows__basic_random_access_handle.lowest_layer_type.member_functions">Member
 127           Functions</a>
 128         </h6>
 129 <div class="informaltable"><table class="table">
 130 <colgroup>
 131 <col>
 132 <col>
 133 </colgroup>
 134 <thead><tr>
 135 <th>
 136                   <p>
 137                     Name
 138                   </p>
 139                 </th>
 140 <th>
 141                   <p>
 142                     Description
 143                   </p>
 144                 </th>
 145 </tr></thead>
 146 <tbody>
 147 <tr>
 148 <td>
 149                   <p>
 150                     <a class="link" href="../windows__basic_handle/assign.html" title="windows::basic_handle::assign"><span class="bold"><strong>assign</strong></span></a>
 151                   </p>
 152                 </td>
 153 <td>
 154                   <p>
 155                     Assign an existing native handle to the handle.
 156                   </p>
 157                 </td>
 158 </tr>
 159 <tr>
 160 <td>
 161                   <p>
 162                     <a class="link" href="../windows__basic_handle/basic_handle.html" title="windows::basic_handle::basic_handle"><span class="bold"><strong>basic_handle</strong></span></a>
 163                   </p>
 164                 </td>
 165 <td>
 166                   <p>
 167                     Construct a basic_handle without opening it.
 168                   </p>
 169                   <p>
 170                     Construct a basic_handle on an existing native handle.
 171                   </p>
 172                   <p>
 173                     Move-construct a basic_handle from another.
 174                   </p>
 175                 </td>
 176 </tr>
 177 <tr>
 178 <td>
 179                   <p>
 180                     <a class="link" href="../windows__basic_handle/cancel.html" title="windows::basic_handle::cancel"><span class="bold"><strong>cancel</strong></span></a>
 181                   </p>
 182                 </td>
 183 <td>
 184                   <p>
 185                     Cancel all asynchronous operations associated with the handle.
 186                   </p>
 187                 </td>
 188 </tr>
 189 <tr>
 190 <td>
 191                   <p>
 192                     <a class="link" href="../windows__basic_handle/close.html" title="windows::basic_handle::close"><span class="bold"><strong>close</strong></span></a>
 193                   </p>
 194                 </td>
 195 <td>
 196                   <p>
 197                     Close the handle.
 198                   </p>
 199                 </td>
 200 </tr>
 201 <tr>
 202 <td>
 203                   <p>
 204                     <a class="link" href="../windows__basic_handle/get_io_service.html" title="windows::basic_handle::get_io_service"><span class="bold"><strong>get_io_service</strong></span></a>
 205                   </p>
 206                 </td>
 207 <td>
 208                   <p>
 209                     Get the io_service associated with the object.
 210                   </p>
 211                 </td>
 212 </tr>
 213 <tr>
 214 <td>
 215                   <p>
 216                     <a class="link" href="../windows__basic_handle/is_open.html" title="windows::basic_handle::is_open"><span class="bold"><strong>is_open</strong></span></a>
 217                   </p>
 218                 </td>
 219 <td>
 220                   <p>
 221                     Determine whether the handle is open.
 222                   </p>
 223                 </td>
 224 </tr>
 225 <tr>
 226 <td>
 227                   <p>
 228                     <a class="link" href="../windows__basic_handle/lowest_layer.html" title="windows::basic_handle::lowest_layer"><span class="bold"><strong>lowest_layer</strong></span></a>
 229                   </p>
 230                 </td>
 231 <td>
 232                   <p>
 233                     Get a reference to the lowest layer.
 234                   </p>
 235                   <p>
 236                     Get a const reference to the lowest layer.
 237                   </p>
 238                 </td>
 239 </tr>
 240 <tr>
 241 <td>
 242                   <p>
 243                     <a class="link" href="../windows__basic_handle/native.html" title="windows::basic_handle::native"><span class="bold"><strong>native</strong></span></a>
 244                   </p>
 245                 </td>
 246 <td>
 247                   <p>
 248                     (Deprecated: Use native_handle().) Get the native handle representation.
 249                   </p>
 250                 </td>
 251 </tr>
 252 <tr>
 253 <td>
 254                   <p>
 255                     <a class="link" href="../windows__basic_handle/native_handle.html" title="windows::basic_handle::native_handle"><span class="bold"><strong>native_handle</strong></span></a>
 256                   </p>
 257                 </td>
 258 <td>
 259                   <p>
 260                     Get the native handle representation.
 261                   </p>
 262                 </td>
 263 </tr>
 264 <tr>
 265 <td>
 266                   <p>
 267                     <a class="link" href="../windows__basic_handle/operator_eq_.html" title="windows::basic_handle::operator="><span class="bold"><strong>operator=</strong></span></a>
 268                   </p>
 269                 </td>
 270 <td>
 271                   <p>
 272                     Move-assign a basic_handle from another.
 273                   </p>
 274                 </td>
 275 </tr>
 276 </tbody>
 277 </table></div>
 278 <h6>
 279 <a name="boost_asio.reference.windows__basic_random_access_handle.lowest_layer_type.h2"></a>
 280           <span><a name="boost_asio.reference.windows__basic_random_access_handle.lowest_layer_type.protected_member_functions"></a></span><a class="link" href="lowest_layer_type.html#boost_asio.reference.windows__basic_random_access_handle.lowest_layer_type.protected_member_functions">Protected
 281           Member Functions</a>
 282         </h6>
 283 <div class="informaltable"><table class="table">
 284 <colgroup>
 285 <col>
 286 <col>
 287 </colgroup>
 288 <thead><tr>
 289 <th>
 290                   <p>
 291                     Name
 292                   </p>
 293                 </th>
 294 <th>
 295                   <p>
 296                     Description
 297                   </p>
 298                 </th>
 299 </tr></thead>
 300 <tbody>
 301 <tr>
 302 <td>
 303                   <p>
 304                     <a class="link" href="../windows__basic_handle/get_implementation.html" title="windows::basic_handle::get_implementation"><span class="bold"><strong>get_implementation</strong></span></a>
 305                   </p>
 306                 </td>
 307 <td>
 308                   <p>
 309                     Get the underlying implementation of the I/O object.
 310                   </p>
 311                 </td>
 312 </tr>
 313 <tr>
 314 <td>
 315                   <p>
 316                     <a class="link" href="../windows__basic_handle/get_service.html" title="windows::basic_handle::get_service"><span class="bold"><strong>get_service</strong></span></a>
 317                   </p>
 318                 </td>
 319 <td>
 320                   <p>
 321                     Get the service associated with the I/O object.
 322                   </p>
 323                 </td>
 324 </tr>
 325 <tr>
 326 <td>
 327                   <p>
 328                     <a class="link" href="../windows__basic_handle/_basic_handle.html" title="windows::basic_handle::~basic_handle"><span class="bold"><strong>~basic_handle</strong></span></a>
 329                   </p>
 330                 </td>
 331 <td>
 332                   <p>
 333                     Protected destructor to prevent deletion through this type.
 334                   </p>
 335                 </td>
 336 </tr>
 337 </tbody>
 338 </table></div>
 339 <h6>
 340 <a name="boost_asio.reference.windows__basic_random_access_handle.lowest_layer_type.h3"></a>
 341           <span><a name="boost_asio.reference.windows__basic_random_access_handle.lowest_layer_type.protected_data_members"></a></span><a class="link" href="lowest_layer_type.html#boost_asio.reference.windows__basic_random_access_handle.lowest_layer_type.protected_data_members">Protected
 342           Data Members</a>
 343         </h6>
 344 <div class="informaltable"><table class="table">
 345 <colgroup>
 346 <col>
 347 <col>
 348 </colgroup>
 349 <thead><tr>
 350 <th>
 351                   <p>
 352                     Name
 353                   </p>
 354                 </th>
 355 <th>
 356                   <p>
 357                     Description
 358                   </p>
 359                 </th>
 360 </tr></thead>
 361 <tbody>
 362 <tr>
 363 <td>
 364                   <p>
 365                     <a class="link" href="../windows__basic_handle/implementation.html" title="windows::basic_handle::implementation"><span class="bold"><strong>implementation</strong></span></a>
 366                   </p>
 367                 </td>
 368 <td>
 369                   <p>
 370                     (Deprecated: Use get_implementation().) The underlying implementation
 371                     of the I/O object.
 372                   </p>
 373                 </td>
 374 </tr>
 375 <tr>
 376 <td>
 377                   <p>
 378                     <a class="link" href="../windows__basic_handle/service.html" title="windows::basic_handle::service"><span class="bold"><strong>service</strong></span></a>
 379                   </p>
 380                 </td>
 381 <td>
 382                   <p>
 383                     (Deprecated: Use get_service().) The service associated with
 384                     the I/O object.
 385                   </p>
 386                 </td>
 387 </tr>
 388 </tbody>
 389 </table></div>
 390 <p>
 391           The <a class="link" href="../windows__basic_handle.html" title="windows::basic_handle"><code class="computeroutput"><span class="identifier">windows</span><span class="special">::</span><span class="identifier">basic_handle</span></code></a> class template provides
 392           the ability to wrap a Windows handle.
 393         </p>
 394 <h6>
 395 <a name="boost_asio.reference.windows__basic_random_access_handle.lowest_layer_type.h4"></a>
 396           <span><a name="boost_asio.reference.windows__basic_random_access_handle.lowest_layer_type.thread_safety"></a></span><a class="link" href="lowest_layer_type.html#boost_asio.reference.windows__basic_random_access_handle.lowest_layer_type.thread_safety">Thread
 397           Safety</a>
 398         </h6>
 399 <p>
 400           <span class="bold"><strong>Distinct</strong></span> <span class="bold"><strong>objects:</strong></span>
 401           Safe.
 402         </p>
 403 <p>
 404           <span class="bold"><strong>Shared</strong></span> <span class="bold"><strong>objects:</strong></span>
 405           Unsafe.
 406         </p>
 407 <h6>
 408 <a name="boost_asio.reference.windows__basic_random_access_handle.lowest_layer_type.h5"></a>
 409           <span><a name="boost_asio.reference.windows__basic_random_access_handle.lowest_layer_type.requirements"></a></span><a class="link" href="lowest_layer_type.html#boost_asio.reference.windows__basic_random_access_handle.lowest_layer_type.requirements">Requirements</a>
 410         </h6>
 411 <p>
 412           <span class="bold"><strong>Header: </strong></span><code class="literal">boost/asio/windows/basic_random_access_handle.hpp</code>
 413         </p>
 414 <p>
 415           <span class="bold"><strong>Convenience header: </strong></span><code class="literal">boost/asio.hpp</code>
 416         </p>
 417 </div>
 418 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
 419 <td align="left"></td>
 420 <td align="right"><div class="copyright-footer">Copyright &#169; 2003-2012 Christopher M. Kohlhoff<p>
 421         Distributed under the Boost Software License, Version 1.0. (See accompanying
 422         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>)
 423       </p>
 424 </div></td>
 425 </tr></table>
 426 <hr>
 427 <div class="spirit-nav">
 428 <a accesskey="p" href="lowest_layer/overload2.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../windows__basic_random_access_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.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a>
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