untracked/docs/reference/html/structsigc_1_1connection.html

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  23    &#160;<span id="projectnumber">2.10.8</span>
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  43 <li class="navelem"><a class="el" href="namespacesigc.html">sigc</a></li><li class="navelem"><a class="el" href="structsigc_1_1connection.html">connection</a></li>  </ul>
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  48 <a href="#pub-methods">Public Member Functions</a> &#124;
  49 <a href="#pub-static-methods">Static Public Member Functions</a> &#124;
  50 <a href="structsigc_1_1connection-members.html">List of all members</a>  </div>
  51   <div class="headertitle">
  52 <div class="title">sigc::connection Struct Reference<div class="ingroups"><a class="el" href="group__signal.html">Signals</a></div></div>  </div>
  53 </div><!--header-->
  54 <div class="contents">
  55
  56 <p>Convinience class for safe disconnection.
  57  <a href="structsigc_1_1connection.html#details">More...</a></p>
  58
  59 <p><code>#include &lt;sigc++/connection.h&gt;</code></p>
  60 <table class="memberdecls">
  61 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
  62 Public Member Functions</h2></td></tr>
  63 <tr class="memitem:a95f80dbbf10fde0b851d78ec12cc2629"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1connection.html#a95f80dbbf10fde0b851d78ec12cc2629">connection</a> () noexcept</td></tr>
  64 <tr class="memdesc:a95f80dbbf10fde0b851d78ec12cc2629"><td class="mdescLeft">&#160;</td><td class="mdescRight">Constructs an empty connection object.  <a href="structsigc_1_1connection.html#a95f80dbbf10fde0b851d78ec12cc2629">More...</a><br /></td></tr>
  65 <tr class="separator:a95f80dbbf10fde0b851d78ec12cc2629"><td class="memSeparator" colspan="2">&#160;</td></tr>
  66 <tr class="memitem:ad13d5e3331cc9b1494e0edb8fa37fdba"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1connection.html#ad13d5e3331cc9b1494e0edb8fa37fdba">connection</a> (const <a class="el" href="structsigc_1_1connection.html">connection</a> &amp; c)</td></tr>
  67 <tr class="memdesc:ad13d5e3331cc9b1494e0edb8fa37fdba"><td class="mdescLeft">&#160;</td><td class="mdescRight">Constructs a connection object copying an existing one.  <a href="structsigc_1_1connection.html#ad13d5e3331cc9b1494e0edb8fa37fdba">More...</a><br /></td></tr>
  68 <tr class="separator:ad13d5e3331cc9b1494e0edb8fa37fdba"><td class="memSeparator" colspan="2">&#160;</td></tr>
  69 <tr class="memitem:ac8847ae94e0b05bed6c81f54f58deef3"><td class="memTemplParams" colspan="2">template&lt;typename T_slot &gt; </td></tr>
  70 <tr class="memitem:ac8847ae94e0b05bed6c81f54f58deef3"><td class="memTemplItemLeft" align="right" valign="top">&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="structsigc_1_1connection.html#ac8847ae94e0b05bed6c81f54f58deef3">connection</a> (const <a class="el" href="structsigc_1_1slot__iterator.html">slot_iterator</a>&lt; T_slot &gt; &amp; it)</td></tr>
  71 <tr class="memdesc:ac8847ae94e0b05bed6c81f54f58deef3"><td class="mdescLeft">&#160;</td><td class="mdescRight">Constructs a connection object from a slot list iterator.  <a href="structsigc_1_1connection.html#ac8847ae94e0b05bed6c81f54f58deef3">More...</a><br /></td></tr>
  72 <tr class="separator:ac8847ae94e0b05bed6c81f54f58deef3"><td class="memSeparator" colspan="2">&#160;</td></tr>
  73 <tr class="memitem:a124709de26781e5ffcf8bbb5dcd621ed"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1connection.html#a124709de26781e5ffcf8bbb5dcd621ed">connection</a> (<a class="el" href="classsigc_1_1slot__base.html">slot_base</a> &amp; sl)</td></tr>
  74 <tr class="memdesc:a124709de26781e5ffcf8bbb5dcd621ed"><td class="mdescLeft">&#160;</td><td class="mdescRight">Constructs a connection object from a slot object.  <a href="structsigc_1_1connection.html#a124709de26781e5ffcf8bbb5dcd621ed">More...</a><br /></td></tr>
  75 <tr class="separator:a124709de26781e5ffcf8bbb5dcd621ed"><td class="memSeparator" colspan="2">&#160;</td></tr>
  76 <tr class="memitem:a99678ccb2be5c20719f37e469416578a"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1connection.html#a99678ccb2be5c20719f37e469416578a">~connection</a> ()</td></tr>
  77 <tr class="separator:a99678ccb2be5c20719f37e469416578a"><td class="memSeparator" colspan="2">&#160;</td></tr>
  78 <tr class="memitem:a581ae4f2b708cb6be7b081557864d6ec"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1connection.html#a581ae4f2b708cb6be7b081557864d6ec">block</a> (bool should_block=true) noexcept</td></tr>
  79 <tr class="memdesc:a581ae4f2b708cb6be7b081557864d6ec"><td class="mdescLeft">&#160;</td><td class="mdescRight">Sets or unsets the blocking state of this connection.  <a href="structsigc_1_1connection.html#a581ae4f2b708cb6be7b081557864d6ec">More...</a><br /></td></tr>
  80 <tr class="separator:a581ae4f2b708cb6be7b081557864d6ec"><td class="memSeparator" colspan="2">&#160;</td></tr>
  81 <tr class="memitem:a7c86964aa4b0f339db5842e6c7e604f3"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1connection.html#a7c86964aa4b0f339db5842e6c7e604f3">blocked</a> () const noexcept</td></tr>
  82 <tr class="memdesc:a7c86964aa4b0f339db5842e6c7e604f3"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns whether the connection is blocked.  <a href="structsigc_1_1connection.html#a7c86964aa4b0f339db5842e6c7e604f3">More...</a><br /></td></tr>
  83 <tr class="separator:a7c86964aa4b0f339db5842e6c7e604f3"><td class="memSeparator" colspan="2">&#160;</td></tr>
  84 <tr class="memitem:a307b5df56439539be66f92d6e39f0bce"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1connection.html#a307b5df56439539be66f92d6e39f0bce">connected</a> () const noexcept</td></tr>
  85 <tr class="memdesc:a307b5df56439539be66f92d6e39f0bce"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns whether the connection is still active.  <a href="structsigc_1_1connection.html#a307b5df56439539be66f92d6e39f0bce">More...</a><br /></td></tr>
  86 <tr class="separator:a307b5df56439539be66f92d6e39f0bce"><td class="memSeparator" colspan="2">&#160;</td></tr>
  87 <tr class="memitem:a0452bd182a61650d14a9664d6297ed1b"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1connection.html#a0452bd182a61650d14a9664d6297ed1b">disconnect</a> ()</td></tr>
  88 <tr class="memdesc:a0452bd182a61650d14a9664d6297ed1b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Disconnects the referred slot.  <a href="structsigc_1_1connection.html#a0452bd182a61650d14a9664d6297ed1b">More...</a><br /></td></tr>
  89 <tr class="separator:a0452bd182a61650d14a9664d6297ed1b"><td class="memSeparator" colspan="2">&#160;</td></tr>
  90 <tr class="memitem:a810bdde9fbe7ad10bf9d578eebf929de"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1connection.html#a810bdde9fbe7ad10bf9d578eebf929de">empty</a> () const noexcept</td></tr>
  91 <tr class="memdesc:a810bdde9fbe7ad10bf9d578eebf929de"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns whether the connection is still active.  <a href="structsigc_1_1connection.html#a810bdde9fbe7ad10bf9d578eebf929de">More...</a><br /></td></tr>
  92 <tr class="separator:a810bdde9fbe7ad10bf9d578eebf929de"><td class="memSeparator" colspan="2">&#160;</td></tr>
  93 <tr class="memitem:a93215e1ea86c5fd0a465b2c4dba1257e"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1connection.html#a93215e1ea86c5fd0a465b2c4dba1257e">operator bool</a> () noexcept</td></tr>
  94 <tr class="memdesc:a93215e1ea86c5fd0a465b2c4dba1257e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns whether the connection is still active.  <a href="structsigc_1_1connection.html#a93215e1ea86c5fd0a465b2c4dba1257e">More...</a><br /></td></tr>
  95 <tr class="separator:a93215e1ea86c5fd0a465b2c4dba1257e"><td class="memSeparator" colspan="2">&#160;</td></tr>
  96 <tr class="memitem:a016094b53bafdc9ce593febb68cb00a5"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structsigc_1_1connection.html">connection</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1connection.html#a016094b53bafdc9ce593febb68cb00a5">operator=</a> (const <a class="el" href="structsigc_1_1connection.html">connection</a> &amp; c)</td></tr>
  97 <tr class="memdesc:a016094b53bafdc9ce593febb68cb00a5"><td class="mdescLeft">&#160;</td><td class="mdescRight">Overrides this connection object copying another one.  <a href="structsigc_1_1connection.html#a016094b53bafdc9ce593febb68cb00a5">More...</a><br /></td></tr>
  98 <tr class="separator:a016094b53bafdc9ce593febb68cb00a5"><td class="memSeparator" colspan="2">&#160;</td></tr>
  99 <tr class="memitem:adee4ffd4b1669b4726fd9afc36330c14"><td class="memTemplParams" colspan="2">template&lt;typename T_slot &gt; </td></tr>
 100 <tr class="memitem:adee4ffd4b1669b4726fd9afc36330c14"><td class="memTemplItemLeft" align="right" valign="top"><a class="el" href="structsigc_1_1connection.html">connection</a> &amp;&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="structsigc_1_1connection.html#adee4ffd4b1669b4726fd9afc36330c14">operator=</a> (const <a class="el" href="structsigc_1_1slot__iterator.html">slot_iterator</a>&lt; T_slot &gt; &amp; it)</td></tr>
 101 <tr class="memdesc:adee4ffd4b1669b4726fd9afc36330c14"><td class="mdescLeft">&#160;</td><td class="mdescRight">Overrides this connection object with another slot list iterator.  <a href="structsigc_1_1connection.html#adee4ffd4b1669b4726fd9afc36330c14">More...</a><br /></td></tr>
 102 <tr class="separator:adee4ffd4b1669b4726fd9afc36330c14"><td class="memSeparator" colspan="2">&#160;</td></tr>
 103 <tr class="memitem:a15abcbfa76f1e5d8601cf4ad4176ed50"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1connection.html#a15abcbfa76f1e5d8601cf4ad4176ed50">unblock</a> () noexcept</td></tr>
 104 <tr class="memdesc:a15abcbfa76f1e5d8601cf4ad4176ed50"><td class="mdescLeft">&#160;</td><td class="mdescRight">Unsets the blocking state of this connection.  <a href="structsigc_1_1connection.html#a15abcbfa76f1e5d8601cf4ad4176ed50">More...</a><br /></td></tr>
 105 <tr class="separator:a15abcbfa76f1e5d8601cf4ad4176ed50"><td class="memSeparator" colspan="2">&#160;</td></tr>
 106 </table><table class="memberdecls">
 107 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
 108 Static Public Member Functions</h2></td></tr>
 109 <tr class="memitem:ad45fe90d68fe295e76e130b070e97070"><td class="memItemLeft" align="right" valign="top">static void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1connection.html#ad45fe90d68fe295e76e130b070e97070">notify</a> (void *<a class="elRef" href="http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/a01635.html#a4a0b2b9455f1e2025d77ba49b3863e33">data</a>)</td></tr>
 110 <tr class="memdesc:ad45fe90d68fe295e76e130b070e97070"><td class="mdescLeft">&#160;</td><td class="mdescRight">Callback that is executed when the referred slot is destroyed.  <a href="structsigc_1_1connection.html#ad45fe90d68fe295e76e130b070e97070">More...</a><br /></td></tr>
 111 <tr class="separator:ad45fe90d68fe295e76e130b070e97070"><td class="memSeparator" colspan="2">&#160;</td></tr>
 112 </table>
 113 <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
 114 <div class="textblock"><p>Convinience class for safe disconnection. </p>
 115 <p>Iterators must not be used beyond the lifetime of the list they work on. A connection object can be created from a slot list iterator and may safely be used to disconnect the referred slot at any time (<a class="el" href="structsigc_1_1connection.html#a0452bd182a61650d14a9664d6297ed1b" title="Disconnects the referred slot.">disconnect()</a>). If the slot has already been destroyed, <a class="el" href="structsigc_1_1connection.html#a0452bd182a61650d14a9664d6297ed1b" title="Disconnects the referred slot.">disconnect()</a> does nothing. <a class="el" href="structsigc_1_1connection.html#a810bdde9fbe7ad10bf9d578eebf929de" title="Returns whether the connection is still active.">empty()</a> or operator bool() can be used to test whether the connection is still active. The connection can be blocked (<a class="el" href="structsigc_1_1connection.html#a581ae4f2b708cb6be7b081557864d6ec" title="Sets or unsets the blocking state of this connection.">block()</a>, <a class="el" href="structsigc_1_1connection.html#a15abcbfa76f1e5d8601cf4ad4176ed50" title="Unsets the blocking state of this connection.">unblock()</a>).</p>
 116 <p>This is possible because the connection object gets notified when the referred slot dies (<a class="el" href="structsigc_1_1connection.html#ad45fe90d68fe295e76e130b070e97070" title="Callback that is executed when the referred slot is destroyed.">notify()</a>). </p>
 117 </div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
 118 <a id="a95f80dbbf10fde0b851d78ec12cc2629"></a>
 119 <h2 class="memtitle"><span class="permalink"><a href="#a95f80dbbf10fde0b851d78ec12cc2629">&#9670;&#160;</a></span>connection() <span class="overload">[1/4]</span></h2>
 120
 121 <div class="memitem">
 122 <div class="memproto">
 123 <table class="mlabels">
 124   <tr>
 125   <td class="mlabels-left">
 126       <table class="memname">
 127         <tr>
 128           <td class="memname">sigc::connection::connection </td>
 129           <td>(</td>
 130           <td class="paramname"></td><td>)</td>
 131           <td></td>
 132         </tr>
 133       </table>
 134   </td>
 135   <td class="mlabels-right">
 136 <span class="mlabels"><span class="mlabel">noexcept</span></span>  </td>
 137   </tr>
 138 </table>
 139 </div><div class="memdoc">
 140
 141 <p>Constructs an empty connection object. </p>
 142
 143 </div>
 144 </div>
 145 <a id="ad13d5e3331cc9b1494e0edb8fa37fdba"></a>
 146 <h2 class="memtitle"><span class="permalink"><a href="#ad13d5e3331cc9b1494e0edb8fa37fdba">&#9670;&#160;</a></span>connection() <span class="overload">[2/4]</span></h2>
 147
 148 <div class="memitem">
 149 <div class="memproto">
 150       <table class="memname">
 151         <tr>
 152           <td class="memname">sigc::connection::connection </td>
 153           <td>(</td>
 154           <td class="paramtype">const <a class="el" href="structsigc_1_1connection.html">connection</a> &amp;&#160;</td>
 155           <td class="paramname"><em>c</em></td><td>)</td>
 156           <td></td>
 157         </tr>
 158       </table>
 159 </div><div class="memdoc">
 160
 161 <p>Constructs a connection object copying an existing one. </p>
 162 <dl class="params"><dt>Parameters</dt><dd>
 163   <table class="params">
 164     <tr><td class="paramname">c</td><td>The connection object to make a copy from. </td></tr>
 165   </table>
 166   </dd>
 167 </dl>
 168
 169 </div>
 170 </div>
 171 <a id="ac8847ae94e0b05bed6c81f54f58deef3"></a>
 172 <h2 class="memtitle"><span class="permalink"><a href="#ac8847ae94e0b05bed6c81f54f58deef3">&#9670;&#160;</a></span>connection() <span class="overload">[3/4]</span></h2>
 173
 174 <div class="memitem">
 175 <div class="memproto">
 176 <div class="memtemplate">
 177 template &lt;typename T_slot &gt; </div>
 178 <table class="mlabels">
 179   <tr>
 180   <td class="mlabels-left">
 181       <table class="memname">
 182         <tr>
 183           <td class="memname">sigc::connection::connection </td>
 184           <td>(</td>
 185           <td class="paramtype">const <a class="el" href="structsigc_1_1slot__iterator.html">slot_iterator</a>&lt; T_slot &gt; &amp;&#160;</td>
 186           <td class="paramname"><em>it</em></td><td>)</td>
 187           <td></td>
 188         </tr>
 189       </table>
 190   </td>
 191   <td class="mlabels-right">
 192 <span class="mlabels"><span class="mlabel">inline</span></span>  </td>
 193   </tr>
 194 </table>
 195 </div><div class="memdoc">
 196
 197 <p>Constructs a connection object from a slot list iterator. </p>
 198 <dl class="params"><dt>Parameters</dt><dd>
 199   <table class="params">
 200     <tr><td class="paramname">it</td><td>The slot list iterator to take the slot from. </td></tr>
 201   </table>
 202   </dd>
 203 </dl>
 204
 205 </div>
 206 </div>
 207 <a id="a124709de26781e5ffcf8bbb5dcd621ed"></a>
 208 <h2 class="memtitle"><span class="permalink"><a href="#a124709de26781e5ffcf8bbb5dcd621ed">&#9670;&#160;</a></span>connection() <span class="overload">[4/4]</span></h2>
 209
 210 <div class="memitem">
 211 <div class="memproto">
 212 <table class="mlabels">
 213   <tr>
 214   <td class="mlabels-left">
 215       <table class="memname">
 216         <tr>
 217           <td class="memname">sigc::connection::connection </td>
 218           <td>(</td>
 219           <td class="paramtype"><a class="el" href="classsigc_1_1slot__base.html">slot_base</a> &amp;&#160;</td>
 220           <td class="paramname"><em>sl</em></td><td>)</td>
 221           <td></td>
 222         </tr>
 223       </table>
 224   </td>
 225   <td class="mlabels-right">
 226 <span class="mlabels"><span class="mlabel">explicit</span></span>  </td>
 227   </tr>
 228 </table>
 229 </div><div class="memdoc">
 230
 231 <p>Constructs a connection object from a slot object. </p>
 232 <p>This is only useful if you create your own slot list. </p><dl class="params"><dt>Parameters</dt><dd>
 233   <table class="params">
 234     <tr><td class="paramname">sl</td><td>The slot to operate on. </td></tr>
 235   </table>
 236   </dd>
 237 </dl>
 238
 239 </div>
 240 </div>
 241 <a id="a99678ccb2be5c20719f37e469416578a"></a>
 242 <h2 class="memtitle"><span class="permalink"><a href="#a99678ccb2be5c20719f37e469416578a">&#9670;&#160;</a></span>~connection()</h2>
 243
 244 <div class="memitem">
 245 <div class="memproto">
 246       <table class="memname">
 247         <tr>
 248           <td class="memname">sigc::connection::~connection </td>
 249           <td>(</td>
 250           <td class="paramname"></td><td>)</td>
 251           <td></td>
 252         </tr>
 253       </table>
 254 </div><div class="memdoc">
 255
 256 </div>
 257 </div>
 258 <h2 class="groupheader">Member Function Documentation</h2>
 259 <a id="a581ae4f2b708cb6be7b081557864d6ec"></a>
 260 <h2 class="memtitle"><span class="permalink"><a href="#a581ae4f2b708cb6be7b081557864d6ec">&#9670;&#160;</a></span>block()</h2>
 261
 262 <div class="memitem">
 263 <div class="memproto">
 264 <table class="mlabels">
 265   <tr>
 266   <td class="mlabels-left">
 267       <table class="memname">
 268         <tr>
 269           <td class="memname">bool sigc::connection::block </td>
 270           <td>(</td>
 271           <td class="paramtype">bool&#160;</td>
 272           <td class="paramname"><em>should_block</em> = <code>true</code></td><td>)</td>
 273           <td></td>
 274         </tr>
 275       </table>
 276   </td>
 277   <td class="mlabels-right">
 278 <span class="mlabels"><span class="mlabel">noexcept</span></span>  </td>
 279   </tr>
 280 </table>
 281 </div><div class="memdoc">
 282
 283 <p>Sets or unsets the blocking state of this connection. </p>
 284 <p>See <a class="el" href="classsigc_1_1slot__base.html#a657a8473164c963a5ca4828c88121bb9" title="Sets the blocking state.">slot_base::block()</a> for details. </p><dl class="params"><dt>Parameters</dt><dd>
 285   <table class="params">
 286     <tr><td class="paramname">should_block</td><td>Indicates whether the blocking state should be set or unset. </td></tr>
 287   </table>
 288   </dd>
 289 </dl>
 290 <dl class="section return"><dt>Returns</dt><dd><code>true</code> if the connection has been in blocking state before. </dd></dl>
 291
 292 </div>
 293 </div>
 294 <a id="a7c86964aa4b0f339db5842e6c7e604f3"></a>
 295 <h2 class="memtitle"><span class="permalink"><a href="#a7c86964aa4b0f339db5842e6c7e604f3">&#9670;&#160;</a></span>blocked()</h2>
 296
 297 <div class="memitem">
 298 <div class="memproto">
 299 <table class="mlabels">
 300   <tr>
 301   <td class="mlabels-left">
 302       <table class="memname">
 303         <tr>
 304           <td class="memname">bool sigc::connection::blocked </td>
 305           <td>(</td>
 306           <td class="paramname"></td><td>)</td>
 307           <td> const</td>
 308         </tr>
 309       </table>
 310   </td>
 311   <td class="mlabels-right">
 312 <span class="mlabels"><span class="mlabel">noexcept</span></span>  </td>
 313   </tr>
 314 </table>
 315 </div><div class="memdoc">
 316
 317 <p>Returns whether the connection is blocked. </p>
 318 <dl class="section return"><dt>Returns</dt><dd><code>true</code> if the connection is blocked. </dd></dl>
 319
 320 </div>
 321 </div>
 322 <a id="a307b5df56439539be66f92d6e39f0bce"></a>
 323 <h2 class="memtitle"><span class="permalink"><a href="#a307b5df56439539be66f92d6e39f0bce">&#9670;&#160;</a></span>connected()</h2>
 324
 325 <div class="memitem">
 326 <div class="memproto">
 327 <table class="mlabels">
 328   <tr>
 329   <td class="mlabels-left">
 330       <table class="memname">
 331         <tr>
 332           <td class="memname">bool sigc::connection::connected </td>
 333           <td>(</td>
 334           <td class="paramname"></td><td>)</td>
 335           <td> const</td>
 336         </tr>
 337       </table>
 338   </td>
 339   <td class="mlabels-right">
 340 <span class="mlabels"><span class="mlabel">noexcept</span></span>  </td>
 341   </tr>
 342 </table>
 343 </div><div class="memdoc">
 344
 345 <p>Returns whether the connection is still active. </p>
 346 <dl class="section return"><dt>Returns</dt><dd><code>true</code> if the connection is still active. </dd></dl>
 347
 348 </div>
 349 </div>
 350 <a id="a0452bd182a61650d14a9664d6297ed1b"></a>
 351 <h2 class="memtitle"><span class="permalink"><a href="#a0452bd182a61650d14a9664d6297ed1b">&#9670;&#160;</a></span>disconnect()</h2>
 352
 353 <div class="memitem">
 354 <div class="memproto">
 355       <table class="memname">
 356         <tr>
 357           <td class="memname">void sigc::connection::disconnect </td>
 358           <td>(</td>
 359           <td class="paramname"></td><td>)</td>
 360           <td></td>
 361         </tr>
 362       </table>
 363 </div><div class="memdoc">
 364
 365 <p>Disconnects the referred slot. </p>
 366
 367 </div>
 368 </div>
 369 <a id="a810bdde9fbe7ad10bf9d578eebf929de"></a>
 370 <h2 class="memtitle"><span class="permalink"><a href="#a810bdde9fbe7ad10bf9d578eebf929de">&#9670;&#160;</a></span>empty()</h2>
 371
 372 <div class="memitem">
 373 <div class="memproto">
 374 <table class="mlabels">
 375   <tr>
 376   <td class="mlabels-left">
 377       <table class="memname">
 378         <tr>
 379           <td class="memname">bool sigc::connection::empty </td>
 380           <td>(</td>
 381           <td class="paramname"></td><td>)</td>
 382           <td> const</td>
 383         </tr>
 384       </table>
 385   </td>
 386   <td class="mlabels-right">
 387 <span class="mlabels"><span class="mlabel">noexcept</span></span>  </td>
 388   </tr>
 389 </table>
 390 </div><div class="memdoc">
 391
 392 <p>Returns whether the connection is still active. </p>
 393 <dl class="section return"><dt>Returns</dt><dd><code>false</code> if the connection is still active. </dd></dl>
 394
 395 </div>
 396 </div>
 397 <a id="ad45fe90d68fe295e76e130b070e97070"></a>
 398 <h2 class="memtitle"><span class="permalink"><a href="#ad45fe90d68fe295e76e130b070e97070">&#9670;&#160;</a></span>notify()</h2>
 399
 400 <div class="memitem">
 401 <div class="memproto">
 402 <table class="mlabels">
 403   <tr>
 404   <td class="mlabels-left">
 405       <table class="memname">
 406         <tr>
 407           <td class="memname">static void* sigc::connection::notify </td>
 408           <td>(</td>
 409           <td class="paramtype">void *&#160;</td>
 410           <td class="paramname"><em>data</em></td><td>)</td>
 411           <td></td>
 412         </tr>
 413       </table>
 414   </td>
 415   <td class="mlabels-right">
 416 <span class="mlabels"><span class="mlabel">static</span></span>  </td>
 417   </tr>
 418 </table>
 419 </div><div class="memdoc">
 420
 421 <p>Callback that is executed when the referred slot is destroyed. </p>
 422 <dl class="params"><dt>Parameters</dt><dd>
 423   <table class="params">
 424     <tr><td class="paramname">data</td><td>The connection object notified (<code>this</code>). </td></tr>
 425   </table>
 426   </dd>
 427 </dl>
 428
 429 </div>
 430 </div>
 431 <a id="a93215e1ea86c5fd0a465b2c4dba1257e"></a>
 432 <h2 class="memtitle"><span class="permalink"><a href="#a93215e1ea86c5fd0a465b2c4dba1257e">&#9670;&#160;</a></span>operator bool()</h2>
 433
 434 <div class="memitem">
 435 <div class="memproto">
 436 <table class="mlabels">
 437   <tr>
 438   <td class="mlabels-left">
 439       <table class="memname">
 440         <tr>
 441           <td class="memname">sigc::connection::operator bool </td>
 442           <td>(</td>
 443           <td class="paramname"></td><td>)</td>
 444           <td></td>
 445         </tr>
 446       </table>
 447   </td>
 448   <td class="mlabels-right">
 449 <span class="mlabels"><span class="mlabel">explicit</span><span class="mlabel">noexcept</span></span>  </td>
 450   </tr>
 451 </table>
 452 </div><div class="memdoc">
 453
 454 <p>Returns whether the connection is still active. </p>
 455 <dl class="section return"><dt>Returns</dt><dd><code>true</code> if the connection is still active. </dd></dl>
 456
 457 </div>
 458 </div>
 459 <a id="a016094b53bafdc9ce593febb68cb00a5"></a>
 460 <h2 class="memtitle"><span class="permalink"><a href="#a016094b53bafdc9ce593febb68cb00a5">&#9670;&#160;</a></span>operator=() <span class="overload">[1/2]</span></h2>
 461
 462 <div class="memitem">
 463 <div class="memproto">
 464       <table class="memname">
 465         <tr>
 466           <td class="memname"><a class="el" href="structsigc_1_1connection.html">connection</a>&amp; sigc::connection::operator= </td>
 467           <td>(</td>
 468           <td class="paramtype">const <a class="el" href="structsigc_1_1connection.html">connection</a> &amp;&#160;</td>
 469           <td class="paramname"><em>c</em></td><td>)</td>
 470           <td></td>
 471         </tr>
 472       </table>
 473 </div><div class="memdoc">
 474
 475 <p>Overrides this connection object copying another one. </p>
 476 <dl class="params"><dt>Parameters</dt><dd>
 477   <table class="params">
 478     <tr><td class="paramname">c</td><td>The connection object to make a copy from. </td></tr>
 479   </table>
 480   </dd>
 481 </dl>
 482
 483 </div>
 484 </div>
 485 <a id="adee4ffd4b1669b4726fd9afc36330c14"></a>
 486 <h2 class="memtitle"><span class="permalink"><a href="#adee4ffd4b1669b4726fd9afc36330c14">&#9670;&#160;</a></span>operator=() <span class="overload">[2/2]</span></h2>
 487
 488 <div class="memitem">
 489 <div class="memproto">
 490 <div class="memtemplate">
 491 template &lt;typename T_slot &gt; </div>
 492 <table class="mlabels">
 493   <tr>
 494   <td class="mlabels-left">
 495       <table class="memname">
 496         <tr>
 497           <td class="memname"><a class="el" href="structsigc_1_1connection.html">connection</a>&amp; sigc::connection::operator= </td>
 498           <td>(</td>
 499           <td class="paramtype">const <a class="el" href="structsigc_1_1slot__iterator.html">slot_iterator</a>&lt; T_slot &gt; &amp;&#160;</td>
 500           <td class="paramname"><em>it</em></td><td>)</td>
 501           <td></td>
 502         </tr>
 503       </table>
 504   </td>
 505   <td class="mlabels-right">
 506 <span class="mlabels"><span class="mlabel">inline</span></span>  </td>
 507   </tr>
 508 </table>
 509 </div><div class="memdoc">
 510
 511 <p>Overrides this connection object with another slot list iterator. </p>
 512 <dl class="params"><dt>Parameters</dt><dd>
 513   <table class="params">
 514     <tr><td class="paramname">it</td><td>The new slot list iterator to take the slot from. </td></tr>
 515   </table>
 516   </dd>
 517 </dl>
 518
 519 </div>
 520 </div>
 521 <a id="a15abcbfa76f1e5d8601cf4ad4176ed50"></a>
 522 <h2 class="memtitle"><span class="permalink"><a href="#a15abcbfa76f1e5d8601cf4ad4176ed50">&#9670;&#160;</a></span>unblock()</h2>
 523
 524 <div class="memitem">
 525 <div class="memproto">
 526 <table class="mlabels">
 527   <tr>
 528   <td class="mlabels-left">
 529       <table class="memname">
 530         <tr>
 531           <td class="memname">bool sigc::connection::unblock </td>
 532           <td>(</td>
 533           <td class="paramname"></td><td>)</td>
 534           <td></td>
 535         </tr>
 536       </table>
 537   </td>
 538   <td class="mlabels-right">
 539 <span class="mlabels"><span class="mlabel">noexcept</span></span>  </td>
 540   </tr>
 541 </table>
 542 </div><div class="memdoc">
 543
 544 <p>Unsets the blocking state of this connection. </p>
 545 <dl class="section return"><dt>Returns</dt><dd><code>true</code> if the connection has been in blocking state before. </dd></dl>
 546
 547 </div>
 548 </div>
 549 </div><!-- contents -->
 550 <!-- start footer part -->
 551 <hr class="footer"/><address class="footer"><small>
 552 Generated on Fri Feb 11 2022 15:40:58 for libsigc++ by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.1
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