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<a href="#pub-methods">Public Member Functions</a> |
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<div class="title">wxArchiveNotifier Class Reference<span class="mlabels"><span class="mlabel">abstract</span></span><div class="ingroups"><a class="el" href="group__group__class__archive.html">Archive support</a> | <a class="el" href="group__group__class__streams.html">Streams</a></div></div> </div>
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<p><code>#include <wx/archive.h></code></p>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>If you need to know when a <a class="el" href="classwx_archive_input_stream.html" title="This is an abstract base class which serves as a common interface to archive input streams such as wx...">wxArchiveInputStream</a> updates a <a class="el" href="classwx_archive_entry.html" title="This is an abstract base class which serves as a common interface to archive entry classes such as wx...">wxArchiveEntry</a> object, you can create a notifier by deriving from this abstract base class, overriding <a class="el" href="classwx_archive_notifier.html#aabc8d85fc2f85b38a761e3b4ccf74f5a" title="This method must be overridden in your derived class.">wxArchiveNotifier::OnEntryUpdated</a>. </p>
<p>An instance of your notifier class can then be assigned to the <a class="el" href="classwx_archive_entry.html" title="This is an abstract base class which serves as a common interface to archive entry classes such as wx...">wxArchiveEntry</a> object using <a class="el" href="classwx_archive_entry.html#a14fe1a270dbb1d0e9a76e2c3c8dd32a8" title="Sets the notifier (see wxArchiveNotifier) for this entry.">wxArchiveEntry::SetNotifier</a>. Your <a class="el" href="classwx_archive_notifier.html#aabc8d85fc2f85b38a761e3b4ccf74f5a" title="This method must be overridden in your derived class.">OnEntryUpdated()</a> method will then be invoked whenever the input stream updates the entry.</p>
<p>Setting a notifier is not usually necessary. It is used to handle certain cases when modifying an archive in a pipeline (i.e. between non-seekable streams). See <a class="el" href="overview_archive.html#overview_archive_noseek">Archives on Non-Seekable Streams</a>.</p>
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<div><span class="lib">Library:</span>  <span class="lib_text"><a class="el" href="page_libs.html#page_libs_wxbase">wxBase</a></span></div><div><span class="category">Category:</span>  <span class="category_text"><a class="el" href="group__group__class__archive.html">Archive support</a>, <a class="el" href="group__group__class__streams.html">Streams</a></span></div><dl class="section see"><dt>See Also</dt><dd><a class="el" href="overview_archive.html#overview_archive_noseek">Archives on Non-Seekable Streams</a>, <a class="el" href="classwx_archive_entry.html" title="This is an abstract base class which serves as a common interface to archive entry classes such as wx...">wxArchiveEntry</a>, <a class="el" href="classwx_archive_input_stream.html" title="This is an abstract base class which serves as a common interface to archive input streams such as wx...">wxArchiveInputStream</a>, <a class="el" href="classwx_archive_output_stream.html" title="This is an abstract base class which serves as a common interface to archive output streams such as w...">wxArchiveOutputStream</a> </dd></dl>
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<tr class="memitem:aabc8d85fc2f85b38a761e3b4ccf74f5a"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_archive_notifier.html#aabc8d85fc2f85b38a761e3b4ccf74f5a">OnEntryUpdated</a> (<a class="el" href="classwx_archive_entry.html">wxArchiveEntry</a> &entry)=0</td></tr>
<tr class="memdesc:aabc8d85fc2f85b38a761e3b4ccf74f5a"><td class="mdescLeft"> </td><td class="mdescRight">This method must be overridden in your derived class. <a href="#aabc8d85fc2f85b38a761e3b4ccf74f5a"></a><br/></td></tr>
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<td class="memname">virtual void wxArchiveNotifier::OnEntryUpdated </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classwx_archive_entry.html">wxArchiveEntry</a> & </td>
<td class="paramname"><em>entry</em></td><td>)</td>
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<span class="mlabels"><span class="mlabel">pure virtual</span></span> </td>
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<p>This method must be overridden in your derived class. </p>
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