For plugin format clients only.
Clear MIDI output buffer. Call it before processAudioFromHost or accumulateOutputMIDI.
What it also does it get all MIDI message from the UI, and add them to the priority queue,
so that they may be accumulated like normal MIDI sent from the process callback.
For plugin format clients only. Clear MIDI output buffer. Call it before processAudioFromHost or accumulateOutputMIDI. What it also does it get all MIDI message from the UI, and add them to the priority queue, so that they may be accumulated like normal MIDI sent from the process callback.