Question

我正在尝试在key应用中使用DeviceInformation.CreateWatcher来枚举UWP服务：

mDNS

protected override void OnNavigatedTo(NavigationEventArgs e) { base.OnNavigatedTo(e); if (_dnsWatcher == null) { _dnsWatcher = DeviceInformation.CreateWatcher("(System.Devices.Aep.ProtocolId:=\"{4526e8c1-8aac-4153-9b16-55e86ada0e54}\")"); _dnsWatcher.Added += DnsWatcher_Added; _dnsWatcher.EnumerationCompleted += DnsWatcher_EnumerationCompleted; _dnsWatcher.Removed += DnsWatcher_Removed; _dnsWatcher.Stopped += DnsWatcher_Stopped; _dnsWatcher.Updated += DnsWatcher_Updated; _dnsWatcher.Start(); } }不显示Wireshark广播，仅发生mDNS回调。

我想念什么吗？

Answer 1

您需要添加所需的内容。这是我的工作代码：

            var proto = "_gopher._tcp"; // e.g. _http._tcp
        var queryString = $"System.Devices.AepService.ProtocolId:={{{DnsSdProtocol}}} AND System.Devices.Dnssd.ServiceName:=\"{proto}\" AND System.Devices.Dnssd.Domain:=\"local\"";

        var askFor = new String[] { "System.Devices.Dnssd.HostName",
                            "System.Devices.Dnssd.ServiceName",
                            "System.Devices.Dnssd.InstanceName",
                            "System.Devices.IpAddress",
                            "System.Devices.Dnssd.PortNumber",
                            "System.Devices.Dnssd.TextAttributes",
                            };
        dw = DeviceInformation.CreateWatcher(queryString, askFor, DeviceInformationKind.AssociationEndpointService);

请注意，我的查询字符串包括用于搜索（_gopher._tcp）的协议和dns域。警告：我是DNS-SD的新手，我不知道什么DNS域设置有效。

如何在Windows 10中枚举mDNS服务？

1 个答案: