title: How to obtain the set of all signals for a given widget?
body: <p>I am looking through the Qt documentation. Is there a quick and dirty way to get a list of all signals that a widget can emit.</p>
  
  <p>For example (withPyQt):</p>
  
  <pre><code>allSignalsList = thisWidget.getSignals()
  </code></pre>
  
  <p>Alternatively, is there is a nice place on the new Qt5 API that shows all the signals for a given QObject?</p>