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    <div class="markdown-here-wrapper" data-md-url="Thunderbird"
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      <p style="margin: 0px 0px 1.2em ! important;">Hi all,</p>
      <p style="margin: 0px 0px 1.2em ! important;">I am trying to emit
        a custom object via QObject.Signal from inside a QRunnable.<br>
        The object I am trying to emit throws this error:</p>
      <blockquote style="margin: 1.2em 0px;border-left: 4px solid
        rgb(221, 221, 221); padding: 0px 1em; color: rgb(119, 119, 119);
        quotes: none;">
        <p style="margin: 0px 0px 1.2em ! important;">TypeError: Value
          types used on meta functions (including signals) need to be
          registered on meta type: <i>NameSpace::</i><i>NameSpace</i>::Clip</p>
      </blockquote>
      <p style="margin: 0px 0px 1.2em ! important;">I tried to trick it
        by creating a wrapper class like so</p>
      <pre style="font-size: 0.85em; font-family: Consolas,Inconsolata,Courier,monospace;font-size: 1em; line-height: 1.2em;margin: 1.2em 0px;"><code class="hljs language-python" style="font-size: 0.85em; font-family: Consolas,Inconsolata,Courier,monospace;margin: 0px 0.15em; padding: 0px 0.3em; white-space: pre-wrap; border: 1px solid rgb(234, 234, 234); background-color: rgb(248, 248, 248); border-radius: 3px; display: inline;white-space: pre; overflow: auto; border-radius: 3px; border: 1px solid rgb(204, 204, 204); padding: 0.5em 0.7em; display: block ! important;display: block; overflow-x: auto; padding: 0.5em; background: rgb(63, 63, 63) none repeat scroll 0% 0%; color: rgb(220, 220, 220); -moz-text-size-adjust: none;"><span class="hljs-class"><span class="hljs-keyword" style="color: rgb(227, 206, 171);">class</span> <span class="hljs-title" style="color: rgb(239, 239, 143);">NodeItem</span><span class="hljs-params">(QtCore.QObject)</span>:</span>
    <span class="hljs-function"><span class="hljs-keyword" style="color: rgb(227, 206, 171);">def</span> <span class="hljs-title" style="color: rgb(239, 239, 143);">__init__</span><span class="hljs-params">(self, node, clip)</span>:</span>
        QtCore.QObject.__init__(self)
        self.node = node
        self.clip = clip
</code></pre>
      <p style="margin: 0px 0px 1.2em ! important;">But that crashes the
        app when I try to emit it from a QRunnable, even though it works
        i the main thread.<br>
      </p>
      <p style="margin: 0px 0px 1.2em ! important;">I have tried to find
        information on how to register meta types but cn only find C++
        info about Q_DECLARE_METATYPE.<br>
        This does not seem to exist in Python land though?!</p>
      <p style="margin: 0px 0px 1.2em ! important;">Does anybody have
        any ideas? I’m kinda stuck with this one.</p>
      <p style="margin: 0px 0px 1.2em ! important;">Cheers,<br>
        frank</p>
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style="height:0;width:0;max-height:0;max-width:0;overflow:hidden;font-size:0em;padding:0;margin:0;">​</div>
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