windows ble蓝牙扫描代码

以下是 Windows 上使用 C++ 实现的 BLE 蓝牙扫描代码示例：

#include <windows.h>
#include <winsock2.h>
#include <ws2bth.h>
#include <BluetoothAPIs.h>
#include <iostream>
#include <vector>

#pragma comment(lib, "Ws2_32.lib")
#pragma comment(lib, "Bthprops.lib")

using namespace std;

int main()
{
    // 初始化 Winsock
    WSADATA wsaData;
    int result = WSAStartup(MAKEWORD(2, 2), &wsaData);
    if (result != 0)
    {
        cout << "WSAStartup failed: " << result << endl;
        return 1;
    }

    // 创建 Bluetooth 监听器
    HANDLE hRadio;
    HBLUETOOTH_RADIO_FIND hFind;
    BLUETOOTH_FIND_RADIO_PARAMS btfrp = { sizeof(BLUETOOTH_FIND_RADIO_PARAMS) };
    HBLUETOOTH_DEVICE_FIND hDevice;
    BLUETOOTH_DEVICE_SEARCH_PARAMS btsp = { sizeof(BLUETOOTH_DEVICE_SEARCH_PARAMS) };
    BLUETOOTH_DEVICE_INFO btdi = { sizeof(BLUETOOTH_DEVICE_INFO) };
    vector<BLUETOOTH_DEVICE_INFO> devices;
    hFind = BluetoothFindFirstRadio(&btfrp, &hRadio);
    if (hFind == NULL)
    {
        cout << "BluetoothFindFirstRadio failed: " << GetLastError() << endl;
        WSACleanup();
        return 1;
    }

    // 枚举所有蓝牙设备
    do
    {
        ZeroMemory(&btsp, sizeof(BLUETOOTH_DEVICE_SEARCH_PARAMS));
        btsp.dwSize = sizeof(BLUETOOTH_DEVICE_SEARCH_PARAMS);
        btsp.fReturnAuthenticated = TRUE;
        btsp.fReturnRemembered = TRUE;
        btsp.fReturnConnected = TRUE;
        btsp.fIssueInquiry = TRUE;
        btsp.cTimeoutMultiplier = 2;
        btsp.hRadio = hRadio;

        hDevice = BluetoothFindFirstDevice(&btsp, &btdi);
        if (hDevice != NULL)
        {
            do
            {
                devices.push_back(btdi);
            } while (BluetoothFindNextDevice(hDevice, &btdi));
            BluetoothFindDeviceClose(hDevice);
        }
    } while (BluetoothFindNextRadio(&hFind, &hRadio));

    // 输出设备信息
    for (auto& device : devices)
    {
        cout << "Name: " << device.szName << endl;
        cout << "Address: " << hex << device.Address.ullLong << endl;
        cout << "Class: " << hex << device.ulClassofDevice << endl;
        cout << endl;
    }

    // 释放资源
    BluetoothFindRadioClose(hFind);
    WSACleanup();

    return 0;
}

该示例使用了 Windows 下的 Bluetooth API，可以枚举所有已配对和可连接的蓝牙设备，并输出设备名称、地址和设备类别等信息。需要注意的是，该程序需要以管理员权限运行才能访问蓝牙设备。