编辑3月3日：我现在添加了代码,通过地址直接查找设备,而不是使用设备发现;所以这是一个简单的’新的BluetoothDeviceInfo(…)’.

看看是否找到了你想要的设备.这要求远程设备仅处于“可连接”模式,而前者要求它处于“可发现”模式. (顺便说一句,我已经将发现代码留在了原地.)

编辑3月8日：现在进行连接(使用SDP API)检查设备是否在范围内(并且处于可连接模式).

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using InTheHand.Net.Bluetooth;
using InTheHand.Net;
using InTheHand.Net.Sockets;
using System.Diagnostics;
using System.Net.Sockets;

namespace hcitool
{
    partial class Program
    {
        static bool infoRatherThanName;
        static BluetoothAddress _searchAddress;

        static int Main(string[] args)
        {
            if (args.Length < 1) {
                Console.WriteLine("Please specify command.");
                return 2;
            }
            var cmd = args[0];
            switch (cmd) {
                case "name":
                    infoRatherThanName = false;
                    break;
                case "info":
                    infoRatherThanName = true;
                    break;
                //-
                case "dev":
                    return ShowRadios();
                //case "auth":
                //    return CauseAuth(GETADDRESS());
                default:
                    throw new NotImplementedException("Command: '" + cmd + "'");
            }
            if (args.Length < 2) {
                Console.WriteLine("Please specify device address.");
                return 2;
            }
            var addrS = args[1];
            _searchAddress = BluetoothAddress.Parse(addrS);
            //
            var dev = new BluetoothDeviceInfo(_searchAddress);
            bool isInRange = GetCanConnectTo(dev);
            if (isInRange) {
                PrintDevice(dev);
            } else {
                Console.WriteLine("Can't see that device.");
            }
            //
            Console.WriteLine("simple");
            return Simple();
            //return Fancier();
        }

        //----
        private static int ShowRadios()
        {
            BluetoothRadio[] list;
            try {
                list = BluetoothRadio.AllRadios;
            } catch (Exception) {
                return 1;
            }
            Debug.Assert(list.Length != 0,"Expect zero radios case to raise an error.");
            foreach (var curR in list) {
                Console.WriteLine("* {0} '{1}'",curR.LocalAddress,curR.Name);
                Console.WriteLine("{0}",curR.SoftwareManufacturer);
                Console.WriteLine("{0}",curR.Manufacturer);
                Console.WriteLine("{0}",curR.Mode);
            }//for
            return 0;
        }

        private static int CauseAuth(BluetoothAddress addr)
        {
            BluetoothSecurity.PairRequest(addr,null);
            return 0;
        }

        //----
        static int Simple()
        {
            BluetoothDeviceInfo[] devices;
            BluetoothDeviceInfo foundDev = null;
            var cli = new BluetoothClient();
            // Fast: Remembered/Authenticated
            devices = cli.DiscoverDevices(255,true,false,false);
            SimpleCheckDevice(devices,ref foundDev);
            if (foundDev == null) {
                // Slow: Inquiry
                cli.DiscoverDevices(255,false);
                SimpleCheckDevice(devices,ref foundDev);
            }
            //
            if (foundDev != null) {
                return 0;
            } else {
                return 1;
            }
        }

        private static void SimpleCheckDevice(IEnumerable<BluetoothDeviceInfo> devices,ref BluetoothDeviceInfo foundDev)
        {
            foreach (var cur in devices) {
                if (cur.DeviceAddress == _searchAddress) {
                    foundDev = cur;
                    PrintDevice(cur);
                }
            }//for
        }

        private static void PrintDevice(BluetoothDeviceInfo cur)
        {
            Console.WriteLine("* Found device: '{0}' ",cur.DeviceName);
            if (infoRatherThanName) {
                try {
                    var vs = cur.GetVersions();
                    Console.WriteLine(vs.Manufacturer);
                    Console.WriteLine(vs.LmpVersion);
                    Console.WriteLine(vs.LmpSubversion);
                    Console.WriteLine(vs.LmpSupportedFeatures);
                } catch (Exception ex) {
                    Console.WriteLine("Failed to get remote device versions info: "
                        + ex.Message);
                }
            }
        }

        //----
        private static bool GetCanConnectTo(BluetoothDeviceInfo device)
        {
            bool inRange;
            Guid fakeUuid = new Guid("{F13F471D-47CB-41d6-9609-BAD0690BF891}");
            try {
                ServiceRecord[] records = device.GetServiceRecords(fakeUuid);
                Debug.Assert(records.Length == 0,"Why are we getting any records?? len: " + records.Length);
                inRange = true;
            } catch (SocketException) {
                inRange = false;
            }
            return inRange;
        }

    }
}