title: Connecting signals to slots with less params allowed in Qt?
body: <p>Is it valid to call</p>
  
  <pre><code>QObject::connect(a, SIGNAL(somesig(someparam)), b, SLOT(someslot()));
  </code></pre>
  
  <p>without params? It seems to work (no runtime exception thrown) but I can't find a reference in the docs. All I found is that this is possible if someslot has a default parameter. It is valid in this case. But my method someslot has not the same parameter set as default (no parameter here in the example).</p>
  
  <p>So it seems to be possible to wire signals to slots with less parameters?</p>