SystemUpdateID event

[CraigD]

The reason I never saw the byebye messages was due to a Qt bug (QTBUG-33419), which I have now worked around.

I now see the byebye/alive/notification sequence - and the listing is updated.

Is it possible to have minimserver update without it sending byebye/alive messages? When I use the HTML page and choose 'rescan' it still does the byebye, causing disconnect, alive, reconnect, etc. But this causes the UI to reset itself to the root of the minimserver listing.

For example, if I create a new playlist file how do I get minimserver to notice this and update itself. Is restarting minim, or using the 'rescan' button the only way? If so, then this is really the same to a control point - it sees minim as stopping and then starting again.

p.s. Wireshark can see the network traffic on the local machine - you just select 'lo' or all interfaces. This is how I knew the SSDP issue was in my code - as I could see minim correctly sending the messages.