C# 用windows11的API实现 HID蓝牙链接、通信的例程

要使用Windows 11的API实现HID蓝牙连接和通信，你可以使用Windows.Devices.Bluetooth.GenericAttributeProfile命名空间中提供的类来实现。以下是一个简单的C#代码示例：

using System;
using System.Linq;
using System.Threading.Tasks;
using Windows.Devices.Bluetooth;
using Windows.Devices.Bluetooth.GenericAttributeProfile;
using Windows.Devices.Enumeration;

namespace BluetoothHIDExample
{
    class Program
    {
        static async Task Main(string[] args)
        {
            // 获取系统中所有蓝牙设备
            string deviceSelector = BluetoothDevice.GetDeviceSelector();
            var devices = await DeviceInformation.FindAllAsync(deviceSelector);

            // 查找HID设备
            var hidDevice = devices.FirstOrDefault(device =>
            {
                return device.Name.StartsWith("HID Device Name");
            });

            if (hidDevice == null)
            {
                Console.WriteLine("未找到HID设备");
                return;
            }

            // 连接到HID设备
            var bluetoothDevice = await BluetoothDevice.FromIdAsync(hidDevice.Id);
            var gattServicesResult = await bluetoothDevice.GetGattServicesAsync();
            var gattService = gattServicesResult.Services.FirstOrDefault(service =>
            {
                return service.Uuid == GattServiceUuids.HumanInterfaceDevice;
            });

            if (gattService == null)
            {
                Console.WriteLine("未能连接到HID服务");
                return;
            }

            // 获取HID服务的特征
            var gattCharacteristicsResult = await gattService.GetCharacteristicsAsync();
            var gattCharacteristic = gattCharacteristicsResult.Characteristics.FirstOrDefault(characteristic =>
            {
                return characteristic.Uuid == GattCharacteristicUuids.Report;
            });

            if (gattCharacteristic == null)
            {
                Console.WriteLine("未找到HID服务的特征");
                return;
            }

            // 订阅HID服务的通知
            var status = await gattCharacteristic.WriteClientCharacteristicConfigurationDescriptorAsync(GattClientCharacteristicConfigurationDescriptorValue.Notify);
            if (status == GattCommunicationStatus.Success)
            {
                Console.WriteLine("成功订阅HID服务的通知");
            }
            else
            {
                Console.WriteLine("未能订阅HID服务的通知");
                return;
            }

            // 接收HID服务的通知
            gattCharacteristic.ValueChanged += (sender, args) =>
            {
                var reader = DataReader.FromBuffer(args.CharacteristicValue);
                byte[] inputReport = new byte[args.CharacteristicValue.Length];
                reader.ReadBytes(inputReport);
                Console.WriteLine($"收到HID服务的通知，内容为：{BitConverter.ToString(inputReport)}");
            };
        }
    }
}

请注意，此示例仅演示了如何连接到HID设备并订阅其通知。要实现完整的HID蓝牙通信，你需要进一步了解HID协议和蓝牙GATT协议，并使用相应的API实现。