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  • Committer: Bazaar Package Importer
  • Author(s): Robert Ancell
  • Date: 2011-03-08 13:28:27 UTC
  • mfrom: (1.59.13 upstream)
  • Revision ID: james.westby@ubuntu.com-20110308132827-odxdwb2fdtji2avm
Tags: 2.28.2-0ubuntu1
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docs/reference/gobject/html/howto-gobject-chainup.html
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      To explicitly chain up to the implementation of the virtual method in the parent class, 
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      you first need a handle to the original parent class structure. This pointer can then be used to 
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      access the original class function pointer and invoke it directly.
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      <sup>[<a name="id651699" href="#ftn.id651699" class="footnote">11</a>]</sup>
 
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      <sup>[<a name="id693920" href="#ftn.id693920" class="footnote">11</a>]</sup>
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    </p>
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<p>The function <code class="function"><a class="link" href="gobject-Type-Information.html#g-type-class-peek-parent" title="g_type_class_peek_parent ()">g_type_class_peek_parent</a></code> is used to access the original parent 
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    class structure. Its input is a pointer to the class of the derived object and it returns a pointer
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  </p>
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<div class="footnotes">
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<br><hr width="100" align="left">
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<div class="footnote"><p><sup>[<a id="ftn.id651699" href="#id651699" class="para">11</a>] </sup>
 
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<div class="footnote"><p><sup>[<a id="ftn.id693920" href="#id693920" class="para">11</a>] </sup>
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          The <span class="emphasis"><em>original</em></span> adjective used in this sentence is not innocuous. To fully 
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          understand its meaning, you need to recall how class structures are initialized: for each object type,
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          the class structure associated to this object is created by first copying the class structure of its