public int InOpen(string deviceName)
{
int result = -1;
int deviceID = GetInIdByName(deviceName);
IntPtr pointer = Marshal.GetIUnknownForObject(this);
midiProc = new MidiProc(CallBack);
result = WinMM.midiInOpen(ref inHandle, deviceID, midiProc, pointer, CALLBACK_FUNCTION);
if (result != 0)
{
throw new Exception("MidiInOpen failed with code: " + result + ". Cannot open IN device " + deviceName);
}
AddSysexBuffer();
result = WinMM.midiInStart(inHandle);
if (result != 0)
{
throw new Exception("Cannot start IN device " + deviceName);
}
return(result);
}
internal static extern int midiInOpen(ref int handle, int deviceId, MidiProc proc, int instance, int flags);
public static extern int midiInOpen(out MidiInSafeHandle handle, uint deviceId, MidiProc proc, IntPtr instance, uint flags);
public static extern int midiStreamOpen(out MidiOutStreamSafeHandle handle, ref uint deviceId, uint cMidi, MidiProc proc, IntPtr instance, uint flags);
public static extern int midiStreamOpen(out IntPtr handle, ref uint deviceID, uint cMidi, MidiProc proc, IntPtr instance, uint flags);
public static extern int midiOutOpen(out IntPtr handle, uint deviceID, MidiProc proc, IntPtr instance, uint flags);
