Fix bug in MIDI button handling commands.

src/mididevice.cpp

@@ -207,6 +207,10 @@ void CMIDIDevice::MIDIMessageHandler (const u8 *pMessage, size_t nLength, unsign
 					}
 				}
 			}
+			if (nLength == 3)
+			{
+				m_pUI->UIMIDICmdHandler (ucChannel, ucStatus & 0xF0, pMessage[1], pMessage[2]);
+			}
 			break;
 
 		case MIDI_NOTE_OFF:

src/userinterface.cpp

@@ -388,13 +388,16 @@ void CUserInterface::UISetMIDIButtonChannel (unsigned uCh)
 	if (uCh == 0)
 	{
 		m_nMIDIButtonCh = CMIDIDevice::Disabled;
+		LOGNOTE("MIDI Button channel not set");
 	}
 	else if (uCh < CMIDIDevice::Channels)
 	{
 		m_nMIDIButtonCh = uCh - 1;
+		LOGNOTE("MIDI Button channel set to: %d", m_nMIDIButtonCh);
 	}
 	else
 	{
 		m_nMIDIButtonCh = CMIDIDevice::OmniMode;
+		LOGNOTE("MIDI Button channel set to: OMNI");
 	}
 }