计算机序号函数,用api函数读取硬盘的序列号

在Windows操作系统中，可以使用WMI（Windows Management Instrumentation）API函数来获取硬盘的序列号。以下是一个示例代码：

#include <iostream>
#include <windows.h>
#include <winioctl.h>
#include <Ntddscsi.h>
#pragma comment(lib, "wbemuuid.lib")

using namespace std;

int main()
{
    // 初始化COM库
    HRESULT hr = CoInitializeEx(NULL, COINIT_MULTITHREADED);
    if (FAILED(hr))
    {
        cerr << "Failed to initialize COM library." << endl;
        return 1;
    }

    // 连接WMI服务
    IWbemLocator *pLoc = NULL;
    hr = CoCreateInstance(CLSID_WbemLocator, 0, CLSCTX_INPROC_SERVER, IID_IWbemLocator, (LPVOID*)&pLoc);
    if (FAILED(hr))
    {
        cerr << "Failed to create IWbemLocator object." << endl;
        CoUninitialize();
        return 1;
    }

    IWbemServices *pSvc = NULL;
    hr = pLoc->ConnectServer(_bstr_t(L"ROOT\\CIMV2"), NULL, NULL, 0, NULL, 0, 0, &pSvc);
    if (FAILED(hr))
    {
        cerr << "Failed to connect to IWbemServices." << endl;
        pLoc->Release();
        CoUninitialize();
        return 1;
    }

    // 设置WMI查询语句
    BSTR query = SysAllocString(L"SELECT * FROM Win32_DiskDrive");
    IEnumWbemClassObject* pEnumerator = NULL;
    hr = pSvc->ExecQuery(_bstr_t(L"WQL"), query, WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY, NULL, &pEnumerator);
    if (FAILED(hr))
    {
        cerr << "Failed to execute query." << endl;
        pSvc->Release();
        pLoc->Release();
        CoUninitialize();
        return 1;
    }

    // 遍历查询结果
    ULONG uReturn = 0;
    while (pEnumerator)
    {
        IWbemClassObject *pclsObj = NULL;
        HRESULT hr = pEnumerator->Next(WBEM_INFINITE, 1, &pclsObj, &uReturn);
        if (0 == uReturn)
        {
            break;
        }

        VARIANT vtProp;
        hr = pclsObj->Get(L"SerialNumber", 0, &vtProp, 0, 0);
        if (FAILED(hr))
        {
            cerr << "Failed to get serial number." << endl;
            pclsObj->Release();
            continue;
        }

        wcout << "Serial number: " << vtProp.bstrVal << endl;

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

    // 释放资源
    pEnumerator->Release();
    pSvc->Release();
    pLoc->Release();
    CoUninitialize();

    return 0;
}

该程序使用WMI查询语句"SELECT * FROM Win32_DiskDrive"获取所有硬盘的信息，然后遍历结果集，获取每个硬盘的序列号。请注意，该程序需要管理员权限才能读取硬盘信息。