Re: Connecting iOS to MacOS via Audio MIDI Setup & Sending MIDI

Hey KMT, thanks for the quick reply.  When I connect my device via lightning, there is no option within Audio MIDI Setup that prompts a window for iOS Device Browser, I only have (1) Show Audio Devices, (2) Hide MIDI Studio, and (3) Show Network Device Broswer.  In my iOS swift application on XCode I have been able to initiate a client on my iPad using Core MIDI, have been able to hit connect on my macbook to my recognized iPad, but am stuck from there trying to figure out how to send MIDI between the devices.  I think I have to somehow recognize my computer as a source and send that data through that as a reference point but am stuck trying to figure that out.

I have tried following the Apple Developer Core MIDI page for MIDI Send but am stuck with that since It does not seem like any MIDI is getting from my iPad to my computer.

Below is some of the code I have been writing to try and figure out a connection, it is a little messy from everything I have been trying, but any help would be great!

This is a class I created that I've been trying to use to send MIDI to my computer.

import Foundation

import CoreMIDI

var midi1 = MidiOutClass()

class MidiOutClass{

    var midiClient = MIDIClientRef()

    var midiSource = MIDIEndpointRef()

   // var midiFound = MIDIObjectType(rawValue: <#Int32#>)

    var outputPort = MIDIPortRef()

    var endPoint = MIDIObjectRef()

    var ent = MIDIEntityRef()

    func openClient(){

        MIDIClientCreate("Gregs iPad" as CFString, nil, nil, &midiClient)  // this sets up the iPad in the Directory of Audio MIDI Setup

        //MIDISourceCreate(midiClient, "MIDI Source" as CFString, &midiSource)

        MIDIOutputPortCreate(midiClient, "Output" as CFString, &outputPort)

       // let midiSource = MIDIGetSource(1)

       // MIDIEndpointGetEntity(midiSource, &ent)

        print(midiClient)

        print(midiSource)

        print(ent)

        print(outputPort)

       // print(endPoint)

        print("midi out opened") // should do this if successful

    }

//

//    func createPort(){

//        var result = MIDIOutputPortCreate(midiClient, "Output" as CFString, &outputPort)

//        print(result)

//        result = MIDIObjectFindByUniqueID(MIDIUniqueID.init(), &endPoint, &midiSourceType!)

//    }

    func midiSend(status: Int, controlID: Int, value: Int){

        var packet = UnsafeMutablePointer<MIDIPacket>.allocate(capacity: 1)

        let packetList = UnsafeMutablePointer<MIDIPacketList>.allocate(capacity: 1)

        let midiDataToSend:[UInt8] = [UInt8(status), UInt8(controlID), UInt8(value)];

        packet = MIDIPacketListInit(packetList);

        packet = MIDIPacketListAdd(packetList, 1024, packet, 0, 3, midiDataToSend);

        MIDISend(outputPort, midiSource, packetList)

        print("MIDI Send")

        print(packetList)

//    MIDIReceived(midiSource, packetList)

  //      MIDISend(<#T##port: MIDIPortRef##MIDIPortRef#>, <#T##dest: MIDIEndpointRef##MIDIEndpointRef#>, <#T##pktlist: UnsafePointer<MIDIPacketList>##UnsafePointer<MIDIPacketList>#>)

        // MIDIDeviceGetEntity(<#T##device: MIDIDeviceRef##MIDIDeviceRef#>, <#T##entityIndex0: Int##Int#>)

   //     packet.deallocate()

    //    packetList.deallocate()

    }

Thank you again for the help,

- Greg