Unplug#260

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folkertvanheusden wants to merge 2 commits intothestk:masterfrom

folkertvanheusden:unplug

Commits on Aug 16, 2021

The queue is accessed from a thread as well as main so requires locking.
folkertvanheusden
committed
Throw an error back to the calling python script when the (virtual/physical-) MIDI device got unplugged.
folkertvanheusden
committed