title: Can I make an event if someone double-clicked inside a QLineEdit?
body: <p>There is already a text in my <code>QLineEdit</code>, and I want that if someone double-clicks inside, then the text will disappear (I would use <code>lineEdit-&gt;clear()</code> for that part). Can someone suggest a solution for this? I'm kinda new in Qt.</p>
  <p>Thank you</p>