private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
C_MidControl.res = M_MidModel.midiOutGetDevCaps(0, ref formCap, (UInt32)Marshal.SizeOf(formCap));
C_MidControl.res = M_MidModel.midiOutOpen(ref C_MidControl.ohandle, 0, null, 0, 0);
var prevTimestamp = -250;
for (int i = 0; i < noteDict.Count; i++)
{
if (!noteDict[i].IsDisposed)
{
byte[] data = new byte[4];
data[0] = 0x90;
data[1] = noteDict[i].noteLevel;
data[2] = 127;
uint msg = BitConverter.ToUInt32(data, 0);
C_MidControl.res = M_MidModel.midiOutShortMsg(C_MidControl.ohandle, (int)msg);
var sleepTimestamp = noteDict[i].noteTimeStamp - prevTimestamp;
Thread.Sleep(sleepTimestamp);
prevTimestamp = noteDict[i].noteTimeStamp;
}
}
C_MidControl.res = M_MidModel.midiOutClose(C_MidControl.ohandle);
}
public static void callback(HMIDIIN hMidiIn, M_MidModel.MidiInMessage wMsg, UIntPtr dwInstance, UIntPtr dwParam1, UIntPtr dwParam2)
{
if (wMsg.ToString() == "MIM_OPEN")
{
// Console.WriteLine("MIDI connection opened successfully");
}
else if (wMsg.ToString() == "MIM_DATA")
{
byte[] data = new byte[4];
int highword = unchecked ((short)(long)dwParam1);
int lowword = unchecked ((short)((long)dwParam1 >> 16));
// unchecked : 오버플로 검사 안함
data[0] = 0x90;
data[1] = (byte)(highword >> 8);
data[2] = (byte)(lowword & 0xff);
uint msg = BitConverter.ToUInt32(data, 0);
res = M_MidModel.midiOutShortMsg(ohandle, (int)msg);
UIntPtr timestamp = dwParam2;
//Console.WriteLine(String.Format("{0} :\n\tNote Index: {1}\n\tNote Velocity: {2}\n\tTimestamp: {3}", wMsg, data[1], data[2], timestamp));
}
return;
}
