C++ USES MFC to get PC hardware configuration information

  • 2020-06-15 10:04:18
  • OfStack

This article shares the specific code of C++ using MFC to obtain PC hardware configuration information for your reference. The specific content is as follows

The following functions are compiled using VS2010 and run on XP and Win7 computers. The annotated loop loop is used to test the stability of this method:


// Included header files: 
#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");
}

Output information similar to the following:


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)

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