title: Change QML font.pointSize in C++
body: <p>I have managed to change the "color" property of QML text with C++ using this:</p>
  
  <pre><code>theText-&gt;setProperty("color", "red");
  </code></pre>
  
  <p>but if I try </p>
  
  <pre><code>theText-&gt;setProperty("font.pointSize", 20);
  </code></pre>
  
  <p>then nothing happens(it's not that size), I've tried this with other things that include a "." but none seem to work, I think the "." may be part of the problem. I'd really appreciate if someone could help me change the QML font size using C++.</p>