public static int SendLongMessage(int handle, byte[] data)
{
/*Debug.Write("Midi Out: ");
* for(int i=0; i<data.Length; i++)
* Debug.Write(data[i].ToString("X")+" ");
* Debug.WriteLine("");*/
int result;
IntPtr ptr;
int size = Marshal.SizeOf(typeof(WinMM.MidiHeader));
WinMM.MidiHeader header = new WinMM.MidiHeader();
header.data = Marshal.AllocHGlobal(data.Length);
for (int i = 0; i < data.Length; i++)
{
Marshal.WriteByte(header.data, i, data[i]);
}
header.bufferLength = data.Length;
header.bytesRecorded = data.Length;
header.flags = 0;
try
{
ptr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(WinMM.MidiHeader)));
}
catch (Exception)
{
Marshal.FreeHGlobal(header.data);
throw;
}
try
{
Marshal.StructureToPtr(header, ptr, false);
}
catch (Exception)
{
Marshal.FreeHGlobal(header.data);
Marshal.FreeHGlobal(ptr);
throw;
}
result = WinMM.MidiOutPrepareHeader(handle, ptr, size);
if (result == 0)
{
result = WinMM.MidiOutLongMessage(handle, ptr, size);
}
if (result == 0)
{
result = WinMM.MidiOutUnprepareHeader(handle, ptr, size);
}
Marshal.FreeHGlobal(header.data);
Marshal.FreeHGlobal(ptr);
return(result);
}
public void CloseMidiIn()
{
if (midi_in_handle != null)
{
WinMM.MidiInStop(midi_in_handle);
//resetting = true;
WinMM.MidiInReset(midi_in_handle);
WinMM.MidiInClose(midi_in_handle);
midi_in_handle = (IntPtr)0;
//resetting = false;
DebugMsg(Direction.Out, Status.Closed);
}
}
public static string MidiOutGetName(int index)
{
WinMM.MIDIOUTCAPS caps = new WinMM.MIDIOUTCAPS();
int error = WinMM.MidiOutGetDevCaps(index, ref caps, 52);
if (error == 0)
{
return(caps.szPname);
}
else
{
return("");
}
}
public bool OpenMidiIn(int deviceIndex, string deviceName)
{
DeviceIndex = deviceIndex;
this.DeviceName = deviceName;
//this.VFOSelect = 0;
callback = new WinMM.MidiInCallback(InCallback);
int result = WinMM.MidiInOpen(out midi_in_handle, (uint)DeviceIndex, callback, IntPtr.Zero,
WinMM.MidiInOpenFlags.Function | WinMM.MidiInOpenFlags.MidiIoStatus);
if (result != 0)
{
StringBuilder error_text = new StringBuilder(256);
WinMM.MidiInGetErrorText(result, error_text, 256);
DebugMsg(Direction.In, Status.Error, "MidiInOpen Error: ", error_text.ToString());
return(false);
}
/*
* for (int i = 0; i < 3; i++)
* {
* result = AddSysExBuffer(midi_in_handle);
* if (result != 0)
* {
* StringBuilder error_text = new StringBuilder(256);
* WinMM.MidiInGetErrorText(result, error_text, 256);
* DebugMsg(Direction.In, Status.Error, "AddSysExBuffer Error:", error_text.ToString());
* return false;
* }
* }
*/
result = WinMM.MidiInStart(midi_in_handle);
if (result != 0)
{
StringBuilder error_text = new StringBuilder(256);
WinMM.MidiInGetErrorText(result, error_text, 256);
DebugMsg(Direction.In, Status.Error, "MidiInStart Error:", error_text.ToString());
return(false);
}
// Try and open Midi Out and send a reset.
if (OpenMidiOut())
{
SendMsg(0x0F, 0x0F, 0, 0);
}
DebugMsg(Direction.In, Status.Open);
return(true);
}
public void SendMsg(int Event, int Channel, int Data1, int Data2)
{
if (midi_out_handle == null)
{
OpenMidiOut();
}
byte status = (byte)(Event << 4);
status |= (byte)Channel;
byte[] bytes = new byte[4];
bytes[0] = status;
bytes[1] = (byte)Data1;
bytes[2] = (byte)Data2;
bytes[3] = 0;
uint msg = BitConverter.ToUInt32(bytes, 0);
if (midi_out_handle != null)
{
int Rc = WinMM.MidiOutShortMessage(midi_out_handle, msg);
}
}
