[C++] 使用MFC获取PC硬件配置信息

函数如下, 使用VS2010编译通过，在XP和Win7电脑上运行过，被注释的loop 循环用于测试此方法是否稳定：

//包含的头文件：
#include "afxdialogex.h"
#include <windows.h>
#include <sstream>
#include <fstream>

void Cget_systemDlg::OnBnClickedButton1()
{
    //for (int i = 0; i < 10000; i++) {

    std::ostringstream osConfig;
    osConfig.precision(1);

    // Computer Name
    TCHAR  infoBuf[512] = {0};
    DWORD  bufCharCount = 512;
    if (GetComputerName(infoBuf, &bufCharCount)) // MSDN: If the function succeeds, the return value is a nonzero value.
        osConfig << "Computer Name: " << infoBuf << std::endl;
    else
        osConfig << "!Error: failed to get computer name" << std::endl;

    // CPU 
    CString strPath = CString("HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0");  
    CRegKey regKey;  
    LONG lResult;  
    lResult = regKey.Open(HKEY_LOCAL_MACHINE, strPath, KEY_READ);    
    if (lResult == ERROR_SUCCESS) 
    {       
        TCHAR chCPUName[256] = {0}; 
        DWORD dwSize = 256; 
        LPCSTR name = "ProcessorNameString";
        regKey.QueryValue(chCPUName,_T("ProcessorNameString"),&dwSize);      
        osConfig << "CPU Type: " << (char*)chCPUName << std::endl;
        regKey.Close(); 
    }    
    else
        osConfig << "!Error: failed to open register for read CPU." << std::endl;

    // OS Name
    char szOsType[MAX_PATH];
    HKEY hKey;
    LPCTSTR StrKey="Software\\Microsoft\\Windows NT\\CurrentVersion";
    if (ERROR_SUCCESS == ::RegOpenKeyEx(HKEY_LOCAL_MACHINE,StrKey,NULL,KEY_READ,&hKey))
    {
        DWORD dwSize = 255;
        DWORD dwType = REG_SZ;
        LPCSTR KeyValue = "ProductName";
        if (ERROR_SUCCESS == ::RegQueryValueEx(hKey,KeyValue,0,&dwType,(BYTE *)szOsType,&dwSize))
            osConfig << "OS : " << szOsType;
        else
            osConfig << "!Error: failed to get OS name." << std::endl;
        ::RegCloseKey(hKey);
    }
    else 
        osConfig << "!Error: failed to get OS name." << std::endl;

    SYSTEM_INFO si;
    GetNativeSystemInfo(&si); // MSDN: This function does not return a value.
    if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64 || si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_IA64 )
        osConfig << " 64bits";
    else
        osConfig << " 32bits";

    OSVERSIONINFO osVer;
    osVer.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);
    if (::GetVersionEx (&osVer)) // MSDN: If the function succeeds, the return value is a nonzero value.
        osConfig << " " << osVer.szCSDVersion << " " << std::endl;
    else
        osConfig << "!Error: failed to get OS CSD version.";

    // Memory
    MEMORYSTATUSEX statusex;
    statusex.dwLength = sizeof (statusex);
    if (GlobalMemoryStatusEx(&statusex)) // MSDN: If the function succeeds, the return value is nonzero.
    {
        osConfig << "Installed RAM: "<< std::fixed << statusex.ullTotalPhys /1024/1024/1024.0 << "GB";
        osConfig << "  Free RAM: " << std::fixed << statusex.ullAvailPhys/1024/1024/1024.0 << "GB" << std::endl;
    }
    else
        osConfig << "!Error: failed to get RAM information." << std::endl;

    // Hard Drive
    // GetLogicalDriveStrings(sizeof(cDriveArray), cDriveArray);
    // MSDN: If the function fails, the return value is zero. 
    // If the function succeeds, the return value is the length, in characters, of the strings copied to the buffer, 
    // not including the terminating null character
    ULARGE_INTEGER free;
    ULARGE_INTEGER total;
    ULARGE_INTEGER totalfree;
    TCHAR szDriveArray[128] = {0};
    TCHAR *p, *pStart;
    pStart = szDriveArray;
    p = szDriveArray;
    int nLen = GetLogicalDriveStrings(sizeof(szDriveArray), szDriveArray);
    if (nLen !=0 ) 
    {
        while ((p = _tcschr(p, _T('\0'))) && p != szDriveArray + nLen )
        {
            if (GetDiskFreeSpaceEx(pStart, &free, &total, &totalfree))  // if success, nonzero
            {
                osConfig << "[" << pStart << "]" << " Total: " << std::fixed << total.QuadPart/1024/1024/1024.0 
                    << "GB  Available: " << std::fixed << free.QuadPart/1024/1024/1024.0 << "GB";
                if (GetDriveType(pStart) == 3)
                    osConfig <<" - Fixed Drive" << std::endl;
                else if (GetDriveType(pStart) == 4)
                    osConfig <<" - (Remote Drive)" << std::endl;
                else
                    osConfig <<" - Other" << std::endl;
            }
            pStart = ++p; 
        }
    }
    else
        osConfig << "!Error: failed to get logical drive name." << std::endl;

    AfxMessageBox(osConfig.str().c_str());

    //std::ostringstream file;
    //file << i << ".txt";
    //std::ofstream log(file.str().c_str());

    //log << osConfig.str().c_str();
    //log.close();
    //log.clear();

    //}
    AfxMessageBox("DONE");
}

输出类似如下的信息：

Computer Name: ATE
CPU Type: Intel(R) Core(TM)2 Duo CPU     E7500  @ 2.93GHz
OS : Windows 7 Ultimate 64bits Service Pack 1 
Installed RAM: 3.9GB  Free RAM: 1.2GB
[C:\] Total: 48.8GB  Available: 13.4GB - Fixed Drive
[D:\] Total: 100.0GB  Available: 52.5GB - Fixed Drive
[E:\] Total: 149.3GB  Available: 7.2GB - Fixed Drive
[K:\] Total: 4607.9GB  Available: 230.9GB - (Remote Drive)
[M:\] Total: 2000.0GB  Available: 1703.8GB - (Remote Drive)
[N:\] Total: 4607.9GB  Available: 230.9GB - (Remote Drive)
[P:\] Total: 4607.9GB  Available: 230.9GB - (Remote Drive)
[T:\] Total: 4607.9GB  Available: 230.9GB - (Remote Drive)
[X:\] Total: 142.8GB  Available: 20.9GB - (Remote Drive)