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<title>libsigc++ 2.0: sigc::internal::trackable_callback Struct Reference</title>
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<h1>sigc::internal::trackable_callback Struct Reference</h1>Destroy notification callback.
<a href="#_details">More...</a>
<p>
<a href="structsigc_1_1internal_1_1trackable__callback-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
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<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1internal_1_1trackable__callback.html#a0">trackable_callback</a> (void* data, <a class="el" href="namespacesigc_1_1internal.html#a1">func_destroy_notify</a> func)</td></tr>
<tr><td colspan="2"><br><h2>Public Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1internal_1_1trackable__callback.html#o0">data_</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="namespacesigc_1_1internal.html#a1">func_destroy_notify</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1internal_1_1trackable__callback.html#o1">func_</a></td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
Destroy notification callback.
<p>
A destroy notification callback consists of a data pointer and a function pointer. The function is executed from the owning callback list (of type <a class="el" href="structsigc_1_1internal_1_1trackable__callback__list.html">sigc::internal::trackable_callback_list</a>) when its parent object (of type <a class="el" href="structsigc_1_1trackable.html">sigc::trackable</a>) is destroyed or overwritten.
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<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="a0" doxytag="sigc::internal::trackable_callback::trackable_callback"></a><p>
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<td class="md" nowrap valign="top">sigc::internal::trackable_callback::trackable_callback </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top">void* </td>
<td class="mdname" nowrap> <em>data</em>, </td>
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<td class="md" nowrap><a class="el" href="namespacesigc_1_1internal.html#a1">func_destroy_notify</a> </td>
<td class="mdname" nowrap> <em>func</em></td>
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<td class="md">) </td>
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<hr><h2>Member Data Documentation</h2>
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<td class="md" nowrap valign="top">void* <a class="el" href="structsigc_1_1internal_1_1trackable__callback.html#o0">sigc::internal::trackable_callback::data_</a> </td>
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<td class="md" nowrap valign="top"><a class="el" href="namespacesigc_1_1internal.html#a1">func_destroy_notify</a> <a class="el" href="structsigc_1_1internal_1_1trackable__callback.html#o1">sigc::internal::trackable_callback::func_</a> </td>
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<hr>The documentation for this struct was generated from the following file:<ul>
<li><a class="el" href="trackable_8h.html">trackable.h</a></ul>
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