title: Determine if a Qt timer trigger event is the one due to triggeredOnStart being true
body: <p>Is there some convenient way to find out, in <code>onTriggered()</code>, whether you are being called as a result of <code>triggeredOnStart</code> being  <code>true</code>, rather than as a result of the timer timing out?</p>
  
  <p>The doc says </p>
  
  <blockquote>
    <p>It is sometimes desirable to trigger immediately when the timer is started; for example, to establish an initial state.</p>
  </blockquote>
  
  <p>but pretty obviously this would be most useful if you can actually tell that it's the first time, so do setup.</p>
  
  <p>This can clearly be done manually by setting some state variable somewhere, and changing it in onTriggered, but that is pretty cumbersome...</p>