可能这实际上是当前不可能的，这很不幸。我正在尝试调用CoreMIDI API来设置MIDI输入。这就是我要在Swift中执行的操作：

var midiClient = MIDIClientRef()
var inputPort = MIDIEndpointRef()
var status: OSStatus

func readProc(packetList: UnsafePointer<MIDIPacketList>, readProcRefCon: UnsafeMutablePointer<Void>, srcConnRefCon: UnsafeMutablePointer<Void>) -> Void {
}

status = MIDIClientCreate("MIDI client", nil, nil, &midiClient);

status = MIDIDestinationCreate(midiClient, "MIDI input", readProc, nil, &inputPort);

但我收到此错误：“（（UnsafePointer，UnsafeMutablePointer，UnsafeMutablePointer）->无效”无法转换为“
MIDIReadProc”

MIDIReadProc的typedef如下：

typealias MIDIReadProc = CFunctionPointer<((UnsafePointer<MIDIPacketList>, UnsafeMutablePointer<Void>, UnsafeMutablePointer<Void>) -> Void)>

有没有一种方法可以让我的readProc方法的函数指针传递给MIDIDestinationCreate API？