title: How to set cursor when it is in some area?
body: <p>I have some rectangle link area on my widget. What is the best way to make cursor <code>Qt::PointingHandCursor</code> when it is in this area?<br>
  <a href="https://i.stack.imgur.com/YOn6p.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/YOn6p.png" alt="enter image description here"></a></p>