...there is an option to do this under Advanced Preferences -> Interface -> Main Interfaces ->...
Thanks - these options work really well, with a skin or without. It's only the 'minimise to tray' operation that would complement the feature.
It would make it easier for us to use both with mouse and keyboard and help prevent us from accidentally closing VLC.
Unfortunately, I don't currently see a way of achieving this same result in Qt...
Perhaps the following open source project could shed some light on this?
https://sourceforge.net/projects/gui-ping-monitor
As we're not a coder we can only guess but this seems to be developed for Qt and provides the 'click X to minimise to tray' capability. Perhaps this might provide some inspiration?
Either way, thanks for your interest.