{"id":12026,"date":"2026-02-09T12:00:48","date_gmt":"2026-02-09T03:00:48","guid":{"rendered":"https:\/\/www.moonmile.net\/blog\/?p=12026"},"modified":"2026-02-09T11:33:39","modified_gmt":"2026-02-09T02:33:39","slug":"cocoa-%e5%8f%97%e4%bf%a1%ef%bc%88en-api-%e4%bb%95%e6%a7%98%ef%bc%89%e3%81%ae%e5%ae%9f%e9%9a%9b-windows-c-%e7%89%88","status":"publish","type":"post","link":"http:\/\/www.moonmile.net\/blog\/archives\/12026","title":{"rendered":"COCOA \u53d7\u4fe1\uff08EN API \u4ed5\u69d8\uff09\u306e\u5b9f\u969b Windows + C# \u7248"},"content":{"rendered":"\n

\u65e2\u306b COCOA \u3082\u5ec3\u6b62\u306b\u306a\u3063\u3066\u3044\u3066\u3001\u5b9f\u6e2c\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u306a\u3044\u306e\u3067\u3059\u304c\u3001EN API \u306e\u30a2\u30c9\u30d0\u30bf\u30a4\u30ba\u53d7\u4fe1\u6a5f\u3082 Windows + C# \u3067\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u5f53\u6642\u306f Android \u3092\u4f7f\u3063\u3066\u53d7\u4fe1\u3055\u305b\u3066\u3044\u305f\u306e\u3067\u3059\u304c\u3001iBeacon \u306e\u53d7\u4fe1\u6a5f\u3068\u540c\u3058\u3088\u3046\u306b Windows \u3067\u4f5c\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

\u96fb\u6587\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u304c\u308f\u304b\u3063\u3066\u3044\u308b\u306e\u3067\u3001\u53d7\u4fe1\u30c7\u30fc\u30bf\u3092\u89e3\u6790\u3059\u308c\u3070\u3088\u3044\u3060\u3051\u3067\u3059\u3002iBeacon \u3068\u306f\u9055\u3063\u3066\u300116 bit \u306e\u30b5\u30fc\u30d3\u30b9 UUID\uff080xFD6F\uff09\u3092\u6301\u3063\u3066\u3044\u308b\u306e\u3067\u3001\u3053\u308c\u3092\u9078\u5225\u3057\u3066\u30c7\u30fc\u30bf\u3092\u53d7\u4fe1\u3057\u307e\u3059\u3002<\/p>\n\n\n

\nusing System;\nusing System.Collections.Generic;\nusing System.Linq;\nusing Windows.Devices.Bluetooth.Advertisement;\nusing Windows.Storage.Streams;\n\n\/\/ BLE\u306e\u30b9\u30ad\u30e3\u30ca\nBluetoothLEAdvertisementWatcher watcher;\n\nMain(args);\n\nvoid Main(string[] args)\n{\n    Console.WriteLine("COCOA Check");\n    watcher = new BluetoothLEAdvertisementWatcher()\n    {\n        ScanningMode = BluetoothLEScanningMode.Passive\n    };\n    \/\/ \u30b9\u30ad\u30e3\u30f3\u3057\u305f\u3068\u304d\u306e\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u8a2d\u5b9a\n    watcher.Received += Watcher_Received;\n    \/\/ \u30b9\u30ad\u30e3\u30f3\u958b\u59cb\n    watcher.Start();\n    \/\/ \u30ad\u30fc\u304c\u62bc\u3055\u308c\u308b\u307e\u3067\u5f85\u3064\n    Console.WriteLine("Press any key to continue");\n    Console.ReadLine();\n}\n\nvoid Watcher_Received(\n    BluetoothLEAdvertisementWatcher sender,\n    BluetoothLEAdvertisementReceivedEventArgs args)\n{\n\n    var uuids = args.Advertisement.ServiceUuids;\n    var mac = string.Join(":",\n                BitConverter.GetBytes(args.BluetoothAddress).Reverse()\n                .Select(b => b.ToString("X2"))).Substring(6);\n    var rssi = args.RawSignalStrengthInDBm;\n    var time = args.Timestamp.ToString("yyyy\/MM\/dd HH:mm:ss.fff");\n    \n    if (uuids.Count == 0) return;\n    \/\/ 0xFD6F \u306f Exposure Notification \u306e\u30b5\u30fc\u30d3\u30b9UUID\n    if (uuids.FirstOrDefault(t => t.ToString() == "0000fd6f-0000-1000-8000-00805f9b34fb") == Guid.Empty) return;\n\n    foreach (var it in args.Advertisement.DataSections)\n    {\n        if ( it.DataType == 0x16 && it.Data.Length >= 2 + 16)\n        {\n            byte[] data = new byte[it.Data.Length];\n            DataReader.FromBuffer(it.Data).ReadBytes(data);\n            if ( data[0] == 0x6f && data[1] == 0xfd)\n            {\n                byte[] rpi = data[2..18];\n                Console.WriteLine($"{time} [{tohex(rpi)}] {rssi} dBm {mac}");\n            }\n        }\n    }\n\n    string tohex( byte[] data )\n    {\n        return BitConverter.ToString(data).Replace("-", "").ToLower();\n    }\n}\n<\/pre><\/div>\n\n\n
1. args.Advertisement.ServiceUuids \u3067 Service UUID 0xFD6F \u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002
2. args.Advertisement.DataSections \u3067 AD Type 0x16\uff08Service Data – 16-bit UUID\uff09\u3092\u63a2\u3057\u307e\u3059\u3002
3. DataSections(Service Data) \u304b\u3089 Service Data UUID 0xFD6F \u3092\u63a2\u3057\u51fa\u3057\u307e\u3059\u3002
4. \u898b\u3064\u304b\u3063\u305f Service Data \u304b\u3089 RPI \u60c5\u5831\u3092\u53d6\u308a\u51fa\u3057\u307e\u3059<\/p>\n\n\n\n
BluetoothLEAdvertisementWatcher \u3067\u53d7\u4fe1\u3059\u308b\u3068\u304d\u306b\u3001args.Advertisement.ServiceUuids \u3068\u304b args.Advertisement.DataSections \u306e\u3088\u3046\u306b\u8907\u6570\u306e Service UUID \u304c\u53d6\u308c\u308b\u3088\u3046\u306a\u611f\u3058\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u304c\u3001BLE \u30a2\u30c9\u30d0\u30bf\u30a4\u30ba\u306f 32 bytes \u307e\u3067\u3057\u304b\u306a\u3044\u306e\u3067\u3001\u5b9f\u8cea 1 \u3064\u3057\u304b\u9001\u308c\u307e\u305b\u3093\u3002\u4f55\u6545\u3053\u3046\u306a\u3063\u3066\u3044\u308b\u306e\u304b\u308f\u304b\u3089\u306a\u3044\u306e\u3067\u3059\u304c\u3001\u62e1\u5f35\u306e\u305f\u3081\u3067\u3057\u3087\u3046\u304b\uff1f\u3000\u78ba\u304b\u3001GATT \u306e\u5834\u5408\u306f Service UUID \u3092\u30da\u30ea\u30d5\u30a7\u30e9\u30eb\u306b\u554f\u3044\u5408\u308f\u305b\u308b\u30e2\u30fc\u30c9\u304c\u3042\u308b\u306e\u3067\u305d\u306e\u305f\u3081\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n
\u3072\u3068\u307e\u305a\u3001Service UUID \u3067\u3042\u308b 0xFD6F \u3092 2 \u56de\u63a2\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u305d\u3046\u3044\u3046\u96fb\u6587\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306b\u306a\u3063\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002Service Data UUID \u306e\u307b\u3046\u306e 0xFD6F \u306f\u81ea\u7531\u306b\u6c7a\u3081\u3089\u308c\u308b\u306e\u3067\u3001\u3053\u306e\u5024\u3058\u3083\u306a\u304f\u3066\u3082\u826f\u3044\u306f\u305a\u306a\u306e\u3067\u3059\u304c\u3001COCOA \u3067\u306f\u3053\u3046\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u3053\u306e 16 bit Service UUID \u3092\u4f7f\u3063\u305f\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306f\u3001Bluetooth SIG \u3067 16 bit Company ID \u3092\u6301\u3063\u305f\u4f1a\u793e\u3067\u3042\u308c\u3070\u81ea\u7531\u306b\u4f5c\u308c\u308b\u306e\u3067\u3001iBeacon \u306e\u3088\u3046\u306b\u8272\u3005\u306a\u7528\u9014\u3067\u4f7f\u3048\u307e\u3059\u3002\u6e29\u5ea6\u30bb\u30f3\u30b5\u30fc\u3092\u30a2\u30c9\u30d0\u30bf\u30a4\u30ba\u3067\u767a\u4fe1\u3059\u308b\u3068\u304b\u3001\u4f4d\u7f6e\u60c5\u5831\u3092\u767a\u4fe1\u3059\u308b\u3068\u304b\u3001\u305d\u3046\u3044\u3046\u7528\u9014\u3067\u3059\u3002GATT \u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u306e Notify \u3088\u308a\u3082\u624b\u8efd\u306e\u3067\u3001\u53d7\u4fe1\u5074\u3092\u554f\u308f\u306a\u3051\u308c\u3070\u7d50\u69cb\u4f7f\u3044\u9053\u304c\u3042\u308b\u3068\u601d\u3046\u306e\u3067\u3059\u304c\u3001\u3044\u307e\u306e\u3068\u3053\u308d\u3042\u307e\u308a\u4f7f\u308f\u308c\u3066\u3044\u306a\u3044\u3088\u3046\u3067\u3059\u3002\u3068\u4e91\u3046\u304b\u3001\u53d7\u4fe1\u6a5f\u3092\u30a2\u30d7\u30ea\u7b49\u3067\u4f5c\u3089\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u306e\u3067\u3001\u4f55\u304b\u5c02\u9580\u7528\u9014\u306b\u4f7f\u3063\u3066\u3044\u3066\u3042\u307e\u308a\u5916\u90e8\u6d41\u51fa\u3057\u306a\u3044\u306e\u3067\u3057\u3087\u3046\u3002EN API \u306e\u5834\u5408\u306e\u3088\u3046\u306b\u4e00\u822c\u7684\u306a\u30a2\u30d7\u30ea\u304c\u53d7\u4fe1\u3059\u308b\u3068\u3044\u3046\u30d1\u30bf\u30fc\u30f3\u306f\u73cd\u3057\u3044\u306e\u3060\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u53d7\u4fe1\u30c7\u30fc\u30bf\u3092\u5168\u90e8\u898b\u308b\u5834\u5408<\/strong><\/h2>\n\n\n\n
Android \u306e\u5834\u5408\u306f ScanCallback \u3092\u4f7f\u3063\u3066\u53d7\u4fe1\u3057\u305f\u751f\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u3059\u304c\u3001BluetoothLEAdvertisementWatcher \u30af\u30e9\u30b9\u3067\u306f\u751f\u30c7\u30fc\u30bf\u3068\u3044\u3046\u5f62\u3067\u307f\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u305f\u3060\u3057\u3001Advertisement.DataSections \u3092\u4f7f\u3063\u3066\u4e2d\u8eab\u3092\u307f\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059…\u3068\u3044\u3046\u306e\u306f\u65e2\u306b\u66f8\u3044\u3066\u3042\u308b\u306e\u3067\u3059\u304c\u3001\u3059\u3079\u3066\u306e AD \u30bb\u30af\u30b7\u30e7\u30f3\u3092\u8868\u793a\u3059\u308b\u30b3\u30fc\u30c9\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n
\n    \/\/ \u3067\u304d\u308b\u3060\u3051 raw data \u3092\u5168\u90e8\u8868\u793a\u3059\u308b\u5834\u5408\n    foreach (var section in args.Advertisement.DataSections)\n    {\n        byte[] buf = new byte[section.Data.Length];\n        DataReader.FromBuffer(section.Data).ReadBytes(buf);\n        Console.WriteLine($"AD 0x{section.DataType:X2} len={buf.Length} data={BitConverter.ToString(buf)}");\n    }\n<\/pre><\/div>\n\n\n
\"\"<\/a><\/figure>\n\n\n
\nAD 0x01 len=1 data=1A\nAD 0x03 len=2 data=6F-FD\nAD 0x16 len=22 data=6F-FD-01-01-01-01-02-02-02-02-03-03-03-03-04-04-04-04-05-05-05-05\n<\/pre><\/div>\n\n\n