private void Send(byte[] message)
{
_runningStatus = 0;
if (IsDisposed)
{
throw new ObjectDisposedException(GetType().Name);
}
lock (_lockObject)
{
_headerBuilder.InitializeBuffer(message);
_headerBuilder.Build();
int result = WindowsMultimediaDevice.midiOutPrepareHeader(Handle, _headerBuilder.Result, SizeOfMidiHeader);
if (result == (int)EDeviceException.MmsyserrNoerror)
{
_bufferCount++;
result = WindowsMultimediaDevice.midiOutLongMsg(Handle, _headerBuilder.Result, SizeOfMidiHeader);
if (result != (int)EDeviceException.MmsyserrNoerror)
{
WindowsMultimediaDevice.midiOutUnprepareHeader(Handle, _headerBuilder.Result, SizeOfMidiHeader);
_bufferCount--;
_headerBuilder.Destroy();
OnError(new ErrorEventArgs(new OutputDeviceException(result)));
}
}
else
{
_headerBuilder.Destroy();
OnError(new ErrorEventArgs(new OutputDeviceException(result)));
}
}
}
private void ReleaseBuffer(IntPtr headerPtr)
{
int result = midiInUnprepareHeader(Handle, headerPtr, SizeOfMidiHeader);
if (result != MIDIExceptions.MMSYSERR_NOERROR)
{
Exception ex = new InputDeviceException(result);
OnError(new ErrorEventArgs(ex));
}
headerBuilder.Destroy(headerPtr);
bufferCount--;
Debug.Assert(bufferCount >= 0);
Monitor.Pulse(lockObject);
}
public int AddSysExBuffer()
{
_headerBuilder.BufferLength = _sysExBufferSize;
_headerBuilder.Build();
var headerPtr = _headerBuilder.Result;
var result = WindowsMultimediaDevice.midiInPrepareHeader(Handle, headerPtr, SizeOfMidiHeader);
if (result == 0)
{
_bufferCount++;
result = WindowsMultimediaDevice.midiInAddBuffer(Handle, headerPtr, SizeOfMidiHeader);
if (result != 0)
{
WindowsMultimediaDevice.midiInUnprepareHeader(Handle, headerPtr, SizeOfMidiHeader);
_bufferCount--;
_headerBuilder.Destroy();
}
return(result);
}
_headerBuilder.Destroy();
return(result);
}