title: How to add custom menu upon right click on file / folder programmatically in c++ / QT?
body: <p>We have an app which syncs files and folder like the way dropbox does. This is an c++ / QT based installer. </p>
  
  <p>We would like add custom menu in the right click context menu of a file or folder like the way dropbox does in the below screen shot.</p>
  
  <p>We are targeting both windows &amp; Mac platforms. Can anyone suggest me how to start with it?</p>
  
  <p><img src="https://i.stack.imgur.com/Mwbad.png" alt="enter image description here"></p>