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<div class="section" id="module-MiniAEFrame">
<h1>38.5. <tt class="xref docutils literal"><span class="pre">MiniAEFrame</span></tt> — Open Scripting Architecture server support<a class="headerlink" href="#module-MiniAEFrame" title="Permalink to this headline">¶</a></h1>
<p><em>Platforms: </em>Mac</p>
<p id="index-435">The module <tt class="xref docutils literal"><span class="pre">MiniAEFrame</span></tt> provides a framework for an application that can
function as an Open Scripting Architecture (OSA) server, i.e. receive and
process AppleEvents. It can be used in conjunction with <a title="(Mac) Interactive application framework. (deprecated)" class="reference external" href="framework.html#module-FrameWork"><tt class="xref docutils literal"><span class="pre">FrameWork</span></tt></a> or
standalone. As an example, it is used in <strong>PythonCGISlave</strong>.</p>
<p>The <tt class="xref docutils literal"><span class="pre">MiniAEFrame</span></tt> module defines the following classes:</p>
<dl class="class">
<dt id="MiniAEFrame.AEServer">
<em class="property">class </em><tt class="descclassname">MiniAEFrame.</tt><tt class="descname">AEServer</tt><a class="headerlink" href="#MiniAEFrame.AEServer" title="Permalink to this definition">¶</a></dt>
<dd>A class that handles AppleEvent dispatch. Your application should subclass this
class together with either <a title="MiniAEFrame.MiniApplication" class="reference internal" href="#MiniAEFrame.MiniApplication"><tt class="xref docutils literal"><span class="pre">MiniApplication</span></tt></a> or
<a title="FrameWork.Application" class="reference external" href="framework.html#FrameWork.Application"><tt class="xref docutils literal"><span class="pre">FrameWork.Application</span></tt></a>. Your <a title="object.__init__" class="reference external" href="../reference/datamodel.html#object.__init__"><tt class="xref docutils literal"><span class="pre">__init__()</span></tt></a> method should call the
<a title="object.__init__" class="reference external" href="../reference/datamodel.html#object.__init__"><tt class="xref docutils literal"><span class="pre">__init__()</span></tt></a> method for both classes.</dd></dl>
<dl class="class">
<dt id="MiniAEFrame.MiniApplication">
<em class="property">class </em><tt class="descclassname">MiniAEFrame.</tt><tt class="descname">MiniApplication</tt><a class="headerlink" href="#MiniAEFrame.MiniApplication" title="Permalink to this definition">¶</a></dt>
<dd>A class that is more or less compatible with <a title="FrameWork.Application" class="reference external" href="framework.html#FrameWork.Application"><tt class="xref docutils literal"><span class="pre">FrameWork.Application</span></tt></a> but
with less functionality. Its event loop supports the apple menu, command-dot and
AppleEvents; other events are passed on to the Python interpreter and/or Sioux.
Useful if your application wants to use <a title="MiniAEFrame.AEServer" class="reference internal" href="#MiniAEFrame.AEServer"><tt class="xref docutils literal"><span class="pre">AEServer</span></tt></a> but does not provide
its own windows, etc.</dd></dl>
<div class="section" id="aeserver-objects">
<span id="id1"></span><h2>38.5.1. AEServer Objects<a class="headerlink" href="#aeserver-objects" title="Permalink to this headline">¶</a></h2>
<dl class="method">
<dt id="MiniAEFrame.AEServer.installaehandler">
<tt class="descclassname">AEServer.</tt><tt class="descname">installaehandler</tt><big>(</big><em>classe</em>, <em>type</em>, <em>callback</em><big>)</big><a class="headerlink" href="#MiniAEFrame.AEServer.installaehandler" title="Permalink to this definition">¶</a></dt>
<dd>Installs an AppleEvent handler. <em>classe</em> and <em>type</em> are the four-character OSA
Class and Type designators, <tt class="docutils literal"><span class="pre">'****'</span></tt> wildcards are allowed. When a matching
AppleEvent is received the parameters are decoded and your callback is invoked.</dd></dl>
<dl class="method">
<dt id="MiniAEFrame.AEServer.callback">
<tt class="descclassname">AEServer.</tt><tt class="descname">callback</tt><big>(</big><em>_object</em>, <em>**kwargs</em><big>)</big><a class="headerlink" href="#MiniAEFrame.AEServer.callback" title="Permalink to this definition">¶</a></dt>
<dd><p>Your callback is called with the OSA Direct Object as first positional
parameter. The other parameters are passed as keyword arguments, with the
4-character designator as name. Three extra keyword parameters are passed:
<tt class="docutils literal"><span class="pre">_class</span></tt> and <tt class="docutils literal"><span class="pre">_type</span></tt> are the Class and Type designators and <tt class="docutils literal"><span class="pre">_attributes</span></tt>
is a dictionary with the AppleEvent attributes.</p>
<p>The return value of your method is packed with <a title="aetools.packevent" class="reference external" href="aetools.html#aetools.packevent"><tt class="xref docutils literal"><span class="pre">aetools.packevent()</span></tt></a> and
sent as reply.</p>
</dd></dl>
<p>Note that there are some serious problems with the current design. AppleEvents
which have non-identifier 4-character designators for arguments are not
implementable, and it is not possible to return an error to the originator. This
will be addressed in a future release.</p>
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<h3><a href="../contents.html">Table Of Contents</a></h3>
<ul>
<li><a class="reference external" href="#">38.5. <tt class="docutils literal"><span class="pre">MiniAEFrame</span></tt> — Open Scripting Architecture server support</a><ul>
<li><a class="reference external" href="#aeserver-objects">38.5.1. AEServer Objects</a></li>
</ul>
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