title: How to create KDE tray notification in a C++ program?
body: <p>I have a C++ program (that uses Qt), and I want to create a tray notification with a progress bar. I think Qt can show text notifications, but not progress bar - that's KDE-specific. I can't find any example of managing KDE tray notifications in C++. Any advice?</p>
  
  <p>P. S. Here's what I mean:</p>
  
  <p><img src="https://i.stack.imgur.com/EiKwV.png" alt="enter image description here"></p>