private void HandleSysExMessage(object state)
{
lock (lockObject)
{
IntPtr headerPtr = (IntPtr)state;
MidiHeader header = (MidiHeader)Marshal.PtrToStructure(headerPtr, typeof(MidiHeader));
if (!resetting)
{
for (int i = 0; i < header.bytesRecorded; i++)
{
sysExData.Add(Marshal.ReadByte(header.data, i));
}
if (sysExData[0] == 0xF0 && sysExData[sysExData.Count - 1] == 0xF7)
{
SysExMessage message = new SysExMessage(sysExData.ToArray());
sysExData.Clear();
OnSysExMessageReceived(new SysExMessageEventArgs(message));
}
int result = AddSysExBuffer();
if (result != DeviceException.MMSYSERR_NOERROR)
{
Exception ex = new InputDeviceException(result);
OnError(new ErrorEventArgs(ex));
}
}
ReleaseBuffer(headerPtr);
}
}
private void ReleaseBuffer(IntPtr headerPtr)
{
int result = midiInUnprepareHeader(Handle, headerPtr, SizeOfMidiHeader);
if(result != DeviceException.MMSYSERR_NOERROR)
{
Exception ex = new InputDeviceException(result);
OnError(new ErrorEventArgs(ex));
}
headerBuilder.Destroy(headerPtr);
bufferCount--;
Debug.Assert(bufferCount >= 0);
Monitor.Pulse(lockObject);
}
private void HandleInvalidSysExMessage(object state)
{
lock(lockObject)
{
IntPtr headerPtr = (IntPtr)state;
MidiHeader header = (MidiHeader)Marshal.PtrToStructure(headerPtr, typeof(MidiHeader));
if(!resetting)
{
byte[] data = new byte[header.bytesRecorded];
Marshal.Copy(header.data, data, 0, data.Length);
OnInvalidSysExMessageReceived(new InvalidSysExMessageEventArgs(data));
int result = AddSysExBuffer();
if(result != DeviceException.MMSYSERR_NOERROR)
{
Exception ex = new InputDeviceException(result);
OnError(new ErrorEventArgs(ex));
}
}
ReleaseBuffer(headerPtr);
}
}
private void HandleSysExMessage(object state)
{
lock(lockObject)
{
IntPtr headerPtr = (IntPtr)state;
MidiHeader header = (MidiHeader)Marshal.PtrToStructure(headerPtr, typeof(MidiHeader));
if(!resetting)
{
for(int i = 0; i < header.bytesRecorded; i++)
{
sysExData.Add(Marshal.ReadByte(header.data, i));
}
if(sysExData[0] == 0xF0 && sysExData[sysExData.Count - 1] == 0xF7)
{
SysExMessage message = new SysExMessage(sysExData.ToArray());
sysExData.Clear();
OnSysExMessageReceived(new SysExMessageEventArgs(message));
}
int result = AddSysExBuffer();
if(result != DeviceException.MMSYSERR_NOERROR)
{
Exception ex = new InputDeviceException(result);
OnError(new ErrorEventArgs(ex));
}
}
ReleaseBuffer(headerPtr);
}
}
