How to track the lifetime of a Drag/Drop operation? <p>I have an application which let's me drag&amp;drop items from a modified <code>QListWidget</code> on to a modified <code>QLabel</code> using <code>startDrag()</code>, <code>dragEnterEvent()</code>, <code>dropEvent()</code>, etc.</p> <p>I now want to not only get notified, when the dragging <strong>starts</strong> but also when it get's <strong>interrupted</strong> (by pressing <code>ESC</code> or dropping somewhere in the void). (My goal is to uncover a hidden widget I can drop items on which hides again as soon as the drag operation gets interrupted.)</p> <p>I crawled the docs but find anything promising - has someone accomplished this already?</p> <p>There is a quite <a href="http://stackoverflow.com/questions/26443890/catching-drag-cancel-event-in-qt">similar question</a> already but it didn't get useful answers and it's two years old - so maybe there are some new trickies introduced by Qt5?</p>