windows 编程获取cpu温度

在Windows编程中获取CPU温度需要通过系统WMI接口来实现。以下是一个示例代码，可以获取CPU温度信息：

#include <iostream>
#include <comdef.h>
#include <Wbemidl.h>
#pragma comment(lib, "wbemuuid.lib")

int main()
{
    HRESULT hres;

    // COM初始化
    hres = CoInitializeEx(0, COINIT_MULTITHREADED);
    if (FAILED(hres))
    {
        std::cerr << "Failed to initialize COM library. Error code = 0x"
            << std::hex << hres << std::endl;
        return 1;
    }

    // 访问WMI
    hres = CoInitializeSecurity(
        NULL,
        -1,                          // COM库自己决定使用哪种安全级别
        NULL,                        // 认证服务
        NULL,                        // 保留
        RPC_C_AUTHN_LEVEL_DEFAULT,   // 身份验证级别
        RPC_C_IMP_LEVEL_IMPERSONATE, // 根据代理访问权限
        NULL,                        // 保留
        EOAC_NONE,                   // 不做额外的安全检查
        NULL                         // 保留
    );

    if (FAILED(hres))
    {
        std::cerr << "Failed to initialize security. Error code = 0x"
            << std::hex << hres << std::endl;
        CoUninitialize();
        return 1;
    }

    IWbemLocator* pLoc = NULL;

    // 初始化WMI定位器
    hres = CoCreateInstance(
        CLSID_WbemLocator,
        0,
        CLSCTX_INPROC_SERVER,
        IID_IWbemLocator,
        (LPVOID*)&pLoc
    );

    if (FAILED(hres))
    {
        std::cerr << "Failed to create IWbemLocator object. Error code = 0x"
            << std::hex << hres << std::endl;
        CoUninitialize();
        return 1;
    }

    IWbemServices* pSvc = NULL;

    // 连接到WMI
    hres = pLoc->ConnectServer(
        _bstr_t(L"ROOT\\WMI"),
        NULL,
        NULL,
        0,
        NULL,
        0,
        0,
        &pSvc
    );

    if (FAILED(hres))
    {
        std::cerr << "Could not connect. Error code = 0x"
            << std::hex << hres << std::endl;
        pLoc->Release();
        CoUninitialize();
        return 1;
    }

    // 设置安全级别
    hres = CoSetProxyBlanket(
        pSvc,
        RPC_C_AUTHN_WINNT,
        RPC_C_AUTHZ_NONE,
        NULL,
        RPC_C_AUTHN_LEVEL_CALL,
        RPC_C_IMP_LEVEL_IMPERSONATE,
        NULL,
        EOAC_NONE
    );

    if (FAILED(hres))
    {
        std::cerr << "Could not set proxy blanket. Error code = 0x"
            << std::hex << hres << std::endl;
        pSvc->Release();
        pLoc->Release();
        CoUninitialize();
        return 1;
    }

    // 查询CPU温度信息
    IEnumWbemClassObject* pEnumerator = NULL;
    hres = pSvc->ExecQuery(
        bstr_t("WQL"),
        bstr_t("SELECT * FROM MSAcpi_ThermalZoneTemperature"),
        WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY,
        NULL,
        &pEnumerator
    );

    if (FAILED(hres))
    {
        std::cerr << "Query failed. Error code = 0x"
            << std::hex << hres << std::endl;
        pSvc->Release();
        pLoc->Release();
        CoUninitialize();
        return 1;
    }

    // 枚举获取CPU温度信息
    IWbemClassObject* pObj = NULL;
    ULONG uReturn = 0;
    VARIANT vtProp;

    while (pEnumerator)
    {
        HRESULT hr = pEnumerator->Next(WBEM_INFINITE, 1, &pObj, &uReturn);

        if (0 == uReturn)
        {
            break;
        }

        // 获取CPU温度信息
        hr = pObj->Get(L"CurrentTemperature", 0, &vtProp, 0, 0);
        if (SUCCEEDED(hr))
        {
            int temp = vtProp.lVal - 2732; // 转换为摄氏度
            std::cout << "CPU temperature: " << temp << " C" << std::endl;
        }

        VariantClear(&vtProp);
        pObj->Release();
    }

    // 清理资源
    pSvc->Release();
    pLoc->Release();
    pEnumerator->Release();
    CoUninitialize();

    return 0;
}

注意：该代码需要以管理员权限运行才能获取到正确的CPU温度信息。另外，获取CPU温度信息的方式可能因不同的硬件平台而有所不同，需要根据具体情况进行调整。