int32.positive prgram number (0-127)
bool32.rising trigger
None
combo device
spinner channel
int ntrig;
if ((inlet_trig > 0) && !ntrig) {
MidiSend2((midi_device_t)attr_device,
MIDI_PROGRAM_CHANGE + (attr_channel - 1), inlet_pgm & 0x7F);
ntrig = 1;
}
if (!(inlet_trig > 0))
ntrig = 0;