UnityのC#からNativePluginsを使わずObjective-C++を呼び出すテスト

ObjCMessage.cs

using UnityEngine;
using System.Collections;
using System.Runtime.InteropServices;
using System;

public class ObjCMessage 
{
	[DllImport("__Internal")]
	static extern IntPtr objc_getClass (string name);

	[DllImport("__Internal")]
	static extern IntPtr sel_registerName (string name);

	[DllImport("__Internal")]
	static  extern IntPtr objc_msgSend (IntPtr self, IntPtr op);


	public static IntPtr GetClass(string name )
	{
		return objc_getClass(name);
	}

	public static IntPtr Selector(string name)
	{
		return sel_registerName(name);
	}

	public static IntPtr MsgSend(IntPtr self, IntPtr op)
	{
		return objc_msgSend(self, op);
	}
}