windows平台下 c++获取系统版本网卡内存 CPU 硬盘显卡信息

妖狐艹你老母 2022-09-15 11:52 676阅读 0赞

GetsysInfo.h：

#ifndef _H_GETSYSINFO
    #define _H_GETSYSINFO
     
     
    #pragma once
     
    #include <afxtempl.h>
     
    class GetSysInfo
    {
    public:
    	GetSysInfo(void);
    	~GetSysInfo(void);
     
    public:
    	/********获取操作系统版本，Service pack版本、系统类型************/
    	void GetOSVersion(CString &strOSVersion,CString &strServiceVersion);
    	BOOL IsWow64();//判断是否为64位操作系统
     
    	/***********获取网卡数目和名字***********/
    	int  GetInterFaceCount();
    	void GetInterFaceName(CString &InterfaceName,int pNum);
     
    	/***获取物理内存和虚拟内存大小***/
    	void GetMemoryInfo(CString &dwTotalPhys,CString &dwTotalVirtual);
     
    	/****获取CPU名称、内核数目、主频*******/
    	void GetCpuInfo(CString &chProcessorName,CString &chProcessorType,DWORD &dwNum,DWORD &dwMaxClockSpeed);
     
    	/****获取硬盘信息****/
    	void GetDiskInfo(DWORD &dwNum,CString chDriveInfo[]);
     
    	/****获取显卡信息*****/
    	void GetDisplayCardInfo(DWORD &dwNum,CString chCardName[]);
    private:
    	CStringList Interfaces;		                  //保存所有网卡的名字
    	CList < DWORD, DWORD &>		Bandwidths;	  //各网卡的带宽
    	CList < DWORD, DWORD &>		TotalTraffics;    //各网卡的总流量
    };
     
    #endif

Getsysinfo.cpp:

#include "StdAfx.h"
    #include "GetsysInfo.h"
    #include <atlbase.h>
    #include "float.h"
    #include "winperf.h"
     
    GetSysInfo::GetSysInfo(void)
    {
    }
     
    GetSysInfo::~GetSysInfo(void)
    {
    }
     
    void GetSysInfo::GetOSVersion(CString &strOSVersion,CString &strServiceVersion)
    {
    	CString str;
    	OSVERSIONINFOEX osvi;
    	SYSTEM_INFO si;
    	BOOL bOsVersionInfoEx;
     
    	ZeroMemory(&si, sizeof(SYSTEM_INFO));
    	ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
     
    	osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
    	if( !(bOsVersionInfoEx = GetVersionEx ((OSVERSIONINFO *) &osvi)) )
    	{
    		osvi.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);
    		GetVersionEx ( (OSVERSIONINFO *) &osvi);
    	}
     
     
    	GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")), 
    		"GetNativeSystemInfo");
     
    	GetSystemInfo(&si);
    	switch (osvi.dwPlatformId)
    	{
    	case VER_PLATFORM_WIN32_NT:
    		if ( osvi.dwMajorVersion == 6 && osvi.dwMinorVersion == 0 )
    		{
    			if( osvi.wProductType == VER_NT_WORKSTATION )
    			{
    				str.Format(_T("Windows Vista "));
    			}
    			else 
    			{
    				str.Format(_T("Windows Server \"Longhorn\" "));
    			}
    		}
    		if ( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 2 )
    		{
    			if( GetSystemMetrics(SM_SERVERR2) )
    			{
    				str.Format(_T("Microsoft Windows Server 2003 \"R2\" "));
    			}
    			else if( osvi.wProductType == VER_NT_WORKSTATION &&
    				si.wProcessorArchitecture==PROCESSOR_ARCHITECTURE_AMD64)
    			{
    				str.Format(_T("Microsoft Windows XP Professional x64 Edition "));
    			}
    			else 
    			{
    				str.Format(_T("Microsoft Windows Server 2003, "));
    			}
    		}
     
    		if ( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 1 )
    		{
    			str.Format(_T("Microsoft Windows XP "));
    		}
     
    		if ( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 0 )
    			str.Format(_T("Microsoft Windows 2000 "));
     
    		if ( osvi.dwMajorVersion <= 4 )
    		{
    			str.Format(_T("Microsoft Windows NT "));
    		}
     
    		// Test for specific product on Windows NT 4.0 SP6 and later.
    		if( bOsVersionInfoEx )
    		{
     
    			//将Service Pack 版本保存
    			strServiceVersion.Format(_T("Service Pack %d"),osvi.wServicePackMajor);
     
    			// Test for the workstation type.
    			if ( osvi.wProductType == VER_NT_WORKSTATION &&
    				si.wProcessorArchitecture!=PROCESSOR_ARCHITECTURE_AMD64)
    			{
    				if( osvi.dwMajorVersion == 4 )
    					str = str + _T("Workstation 4.0");
    				else if( osvi.wSuiteMask & VER_SUITE_PERSONAL )
    					str = str + _T("Home Edition");
    				else str = str + _T( "Professional");
    			}
     
    			// Test for the server type.
    			else if ( osvi.wProductType == VER_NT_SERVER || 
    				osvi.wProductType == VER_NT_DOMAIN_CONTROLLER )
    			{
    				if(osvi.dwMajorVersion==5 && osvi.dwMinorVersion==2)
    				{
    					if ( si.wProcessorArchitecture ==
    						PROCESSOR_ARCHITECTURE_IA64 )
    					{
    						if( osvi.wSuiteMask & VER_SUITE_DATACENTER )
    							str = str + _T("Datacenter Edition for Itanium-based Systems");
    						else if( osvi.wSuiteMask & VER_SUITE_ENTERPRISE )
    							str = str + _T("Enterprise Edition for Itanium-based Systems");
    					}
     
    					else if ( si.wProcessorArchitecture ==
    						PROCESSOR_ARCHITECTURE_AMD64 )
    					{
    						if( osvi.wSuiteMask & VER_SUITE_DATACENTER )
    							str = str + _T( "Datacenter x64 Edition ");
    						else if( osvi.wSuiteMask & VER_SUITE_ENTERPRISE )
    							str = str + _T( "Enterprise x64 Edition ");
    						else str = str + _T( "Standard x64 Edition ");
    					}
     
    					else
    					{
    						if( osvi.wSuiteMask & VER_SUITE_DATACENTER )
    							str = str + _T( "Datacenter Edition ");
    						else if( osvi.wSuiteMask & VER_SUITE_ENTERPRISE )
    							str = str + _T( "Enterprise Edition ");
    						else if ( osvi.wSuiteMask & VER_SUITE_BLADE )
    							str = str + _T( "Web Edition ");
    						else str = str + _T( "Standard Edition ");
    					}
    				}
    				else if(osvi.dwMajorVersion==5 && osvi.dwMinorVersion==0)
    				{
    					if( osvi.wSuiteMask & VER_SUITE_DATACENTER )
    						str = str + _T("Datacenter Server ");
    					else if( osvi.wSuiteMask & VER_SUITE_ENTERPRISE )
    						str = str + _T( "Advanced Server ");
    					else str = str + _T( "Server ");
    				}
    				else  // Windows NT 4.0 
    				{
    					if( osvi.wSuiteMask & VER_SUITE_ENTERPRISE )
    						str = str + _T ("Server 4.0, Enterprise Edition ");
    					else str = str + _T ( "Server 4.0 " );
    				}
    			}
    		}
    		// Test for specific product on Windows NT 4.0 SP5 and earlier
    		else  
    		{
    			HKEY hKey;
    			TCHAR szProductType[256];
    			DWORD dwBufLen=256*sizeof(TCHAR);
    			LONG lRet;
     
    			lRet = RegOpenKeyEx( HKEY_LOCAL_MACHINE,
    				_T("SYSTEM\\CurrentControlSet\\Control\\ProductOptions"), 0, KEY_QUERY_VALUE, &hKey );
    			if( lRet != ERROR_SUCCESS )
    				strOSVersion = str;
    				return;
     
    			lRet = RegQueryValueEx( hKey, TEXT("ProductType"),
    				NULL, NULL, (LPBYTE) szProductType, &dwBufLen);
    			RegCloseKey( hKey );
     
    			if( (lRet != ERROR_SUCCESS) ||
    				(dwBufLen > 256*sizeof(TCHAR)) )
    				strOSVersion = str;
    				return;
     
    			if ( lstrcmpi( TEXT("WINNT"), szProductType) == 0 )
    				str = str + _T( "Workstation ");
    			if ( lstrcmpi( TEXT("LANMANNT"), szProductType) == 0 )
    				str = str + _T( "Server " );
    			if ( lstrcmpi( TEXT("SERVERNT"), szProductType) == 0 )
    				str = str + _T( "Advanced Server ");
    			str.Format(_T( "%d.%d "), osvi.dwMajorVersion, osvi.dwMinorVersion );
    		}
     
    		// Display service pack (if any) and build number.
     
    		if( osvi.dwMajorVersion == 4 && 
    			lstrcmpi( osvi.szCSDVersion, TEXT("Service Pack 6") ) == 0 )
    		{ 
    			HKEY hKey;
    			LONG lRet;
     
    			// Test for SP6 versus SP6a.
    			lRet = RegOpenKeyEx( HKEY_LOCAL_MACHINE,
    				_T("SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Hotfix\\Q246009"), 0, KEY_QUERY_VALUE, &hKey );
    			if( lRet == ERROR_SUCCESS )
    				str.Format(_T( "Service Pack 6a (Build %d)\n"), 
    				osvi.dwBuildNumber & 0xFFFF );         
    			else // Windows NT 4.0 prior to SP6a
    			{
    				_tprintf( TEXT("%s (Build %d)\n"),
    					osvi.szCSDVersion,
    					osvi.dwBuildNumber & 0xFFFF);
    			}
     
    			RegCloseKey( hKey );
    		}
    		else // not Windows NT 4.0 
    		{
    			_tprintf( TEXT("%s (Build %d)\n"),
    				osvi.szCSDVersion,
    				osvi.dwBuildNumber & 0xFFFF);
    		}
     
    		break;
     
    		// Test for the Windows Me/98/95.
    	case VER_PLATFORM_WIN32_WINDOWS:
     
    		if (osvi.dwMajorVersion == 4 && osvi.dwMinorVersion == 0)
    		{
    			str.Format(_T("Microsoft Windows 95 "));
    			if (osvi.szCSDVersion[1]=='C' || osvi.szCSDVersion[1]=='B')
    				str = str + _T("OSR2 ");
    		} 
     
    		if (osvi.dwMajorVersion == 4 && osvi.dwMinorVersion == 10)
    		{
    			str.Format(_T("Microsoft Windows 98 "));
    			if ( osvi.szCSDVersion[1]=='A' || osvi.szCSDVersion[1]=='B')
    				str = str + _T("SE ");
    		} 
    		if (osvi.dwMajorVersion == 4 && osvi.dwMinorVersion == 90)
    		{
    			str.Format(_T("Microsoft Windows Millennium Edition\n"));
    		} 
    		break;
     
    	case VER_PLATFORM_WIN32s:
    		str.Format(_T("Microsoft Win32s\n"));
    		break;
    	default:
    		break;
    	}
     
    	strOSVersion = str;
    }
     
    BOOL GetSysInfo::IsWow64() 
    { 
    	typedef BOOL (WINAPI *LPFN_ISWOW64PROCESS) (HANDLE, PBOOL); 
    	LPFN_ISWOW64PROCESS fnIsWow64Process; 
    	BOOL bIsWow64 = FALSE; 
    	fnIsWow64Process = (LPFN_ISWOW64PROCESS)GetProcAddress( GetModuleHandle(_T("kernel32")),"IsWow64Process"); 
    	if (NULL != fnIsWow64Process) 
    	{ 
    		fnIsWow64Process(GetCurrentProcess(),&bIsWow64);
    	} 
    	return bIsWow64; 
    } 
     
    void GetSysInfo::GetCpuInfo(CString &chProcessorName,CString &chProcessorType,DWORD &dwNum,DWORD &dwMaxClockSpeed)
    {
     
    	CString strPath=_T("HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0");//注册表子键路径
    	CRegKey regkey;//定义注册表类对象
    	LONG lResult;//LONG型变量－反应结果
    	lResult=regkey.Open(HKEY_LOCAL_MACHINE,LPCTSTR(strPath),KEY_ALL_ACCESS); //打开注册表键
    	if (lResult!=ERROR_SUCCESS)
    	{
    		return;
    	}
    	WCHAR chCPUName[50] = {0};
    	DWORD dwSize=50; 
     
    	//获取ProcessorNameString字段值
    	if (ERROR_SUCCESS == regkey.QueryStringValue(_T("ProcessorNameString"),chCPUName,&dwSize))
    	{
    		chProcessorName = chCPUName;
    	}
     
    	//查询CPU主频
    	DWORD dwValue;
    	if (ERROR_SUCCESS == regkey.QueryDWORDValue(_T("~MHz"),dwValue))
    	{
    		dwMaxClockSpeed = dwValue;
    	}
    	regkey.Close();//关闭注册表
    	//UpdateData(FALSE);
     
    	//获取CPU核心数目
    	SYSTEM_INFO si;
    	memset(&si,0,sizeof(SYSTEM_INFO));
    	GetSystemInfo(&si);
    	dwNum = si.dwNumberOfProcessors;
     
    	switch (si.dwProcessorType)
    	{
    	case PROCESSOR_INTEL_386:
    		{
    			chProcessorType.Format(_T("Intel 386 processor"));
    		}
    		break;
    	case PROCESSOR_INTEL_486:
    		{
    			chProcessorType.Format(_T("Intel 486 Processor"));
    		}
    		break;
    	case PROCESSOR_INTEL_PENTIUM:
    		{
    			chProcessorType.Format(_T("Intel Pentium Processor"));
    		}
    		break;
    	case PROCESSOR_INTEL_IA64:
    		{
    			chProcessorType.Format(_T("Intel IA64 Processor"));
    		}
    		break;
    	case PROCESSOR_AMD_X8664:
    		{
    			chProcessorType.Format(_T("AMD X8664 Processor"));
    		}
    		break;
    	default:
    		chProcessorType.Format(_T("未知"));
    		break;
    	}
     
    	//GetDisplayName()
    }
     
    void  GetSysInfo::GetMemoryInfo(CString &dwTotalPhys,CString &dwTotalVirtual) 
    { 
    	//   TODO:     Add   extra   initialization   here 
    	MEMORYSTATUS   Mem; 
    	//   get   the   memory   status 
    	GlobalMemoryStatus(&Mem); 
     
    	DWORD dwSize = (DWORD)Mem.dwTotalPhys/(1024*1024); 
    	DWORD dwVirtSize = (DWORD)Mem.dwTotalVirtual/(1024*1024);
     
    	dwTotalPhys.Format(_T("物理内存:%ld MB"),dwSize); 
    	dwTotalVirtual.Format(_T("虚拟内存:%ld MB"),dwVirtSize);
    }
     
    int GetSysInfo::GetInterFaceCount()
    {
    	/*CGetNetData pNet;
    	DWORD pCount = pNet.GetNetworkInterfacesCount();
    	return pCount;*/
     
     
    	try
    	{
    #define DEFAULT_BUFFER_SIZE 40960L
     
    		unsigned char *data = (unsigned char*)malloc(DEFAULT_BUFFER_SIZE);
    		DWORD type;
    		DWORD size = DEFAULT_BUFFER_SIZE;
    		DWORD ret;
     
    		char s_key[4096];
    		sprintf_s(s_key , 4096 , "510");
    		//RegQueryValueEx的固定调用格式		
    		CString str(s_key);
     
    		//如果RegQueryValueEx函数执行失败则进入循环
    		while((ret = RegQueryValueEx(HKEY_PERFORMANCE_DATA, str, 0, &type, data, &size)) != ERROR_SUCCESS)
    		{
    			Sleep(10);
    			//如果RegQueryValueEx的返回值为ERROR_MORE_DATA(申请的内存区data太小，不能容纳RegQueryValueEx返回的数据)
    			if(ret == ERROR_MORE_DATA) 
    			{
    				Sleep(10);
    				size += DEFAULT_BUFFER_SIZE;
    				data = (unsigned char*) realloc(data, size);//重新分配足够大的内存
     
    				ret = RegQueryValueEx(HKEY_PERFORMANCE_DATA, str, 0, &type, data, &size);//重新执行RegQueryValueEx函数
    			} 
    			//如果RegQueryValueEx返回值仍旧未成功则函数返回.....(注意内存泄露“free函数”~~~)。
    			//这个if保证了这个while只能进入一次~~~避免死循环
    			if(ret != ERROR_SUCCESS)
    			{
    				if (NULL != data)
    				{
    					free(data);
    					data = NULL;
    				}
    				return 0;//0个接口
    			}
    		}
     
    		//函数执行成功之后就是对返回的data内存中数据的解析了，这个建议去查看MSDN有关RegQueryValueEx函数参数数据结构的说明
    		//得到数据块		
    		PERF_DATA_BLOCK	 *dataBlockPtr = (PERF_DATA_BLOCK *)data;
    		//得到第一个对象
    		PERF_OBJECT_TYPE *objectPtr = (PERF_OBJECT_TYPE *) ((BYTE *)dataBlockPtr + dataBlockPtr->HeaderLength);
     
    		for(int a=0 ; a<(int)dataBlockPtr->NumObjectTypes ; a++) 
    		{
    			char nameBuffer[255] = {0};
    			if(objectPtr->ObjectNameTitleIndex == 510) 
    			{
    				DWORD processIdOffset = ULONG_MAX;
    				PERF_COUNTER_DEFINITION *counterPtr =(PERF_COUNTER_DEFINITION *) ((BYTE *)objectPtr + objectPtr->HeaderLength);
     
    				for(int b=0 ; b<(int)objectPtr->NumCounters ; b++) 
    				{
    					if(counterPtr->CounterNameTitleIndex == 520)
    						processIdOffset = counterPtr->CounterOffset;
     
    					counterPtr =(PERF_COUNTER_DEFINITION *) ((BYTE *) counterPtr + counterPtr->ByteLength);
    				}
     
    				if(processIdOffset == ULONG_MAX) {
    					if(data != NULL)
    					{
    						free(data);
    						data = NULL;
    					}
    					return 0;
    				}
     
    				PERF_INSTANCE_DEFINITION *instancePtr =(PERF_INSTANCE_DEFINITION *)  ((BYTE *) objectPtr + objectPtr->DefinitionLength);
     
    				for(int b=0 ; b<objectPtr->NumInstances ; b++) 
    				{
    					wchar_t *namePtr = (wchar_t *) ((BYTE *)instancePtr + instancePtr->NameOffset);
    					PERF_COUNTER_BLOCK *counterBlockPtr = (PERF_COUNTER_BLOCK *) ((BYTE *)instancePtr + instancePtr->ByteLength);
    		
    					char pName[256] = {0};
    					WideCharToMultiByte(CP_ACP, 0, namePtr, -1, pName, sizeof(nameBuffer), 0, 0);
     
    					DWORD bandwith = *((DWORD *) ((BYTE *)counterBlockPtr + processIdOffset));				
    					DWORD tottraff = 0;
     
    					Interfaces.AddTail(CString(pName)); //各网卡的名称
    					Bandwidths.AddTail(bandwith);       //带宽
    					TotalTraffics.AddTail(tottraff);    // 流量初始化为0
     
    					PERF_COUNTER_BLOCK  *pCtrBlk = (PERF_COUNTER_BLOCK *) ((BYTE *)instancePtr + instancePtr->ByteLength);
     
    					
    					instancePtr = (PERF_INSTANCE_DEFINITION *) ((BYTE *)instancePtr + instancePtr->ByteLength + pCtrBlk->ByteLength);
    				}
    			}
    			objectPtr = (PERF_OBJECT_TYPE *) ((BYTE *)objectPtr + objectPtr->TotalByteLength);
    		}
    		if(data != NULL)
    		{
    			free(data);
    			data = NULL;
    		}
    	}
    	catch(...)
    	{
    		return 0;
    	}
    	return Interfaces.GetCount();
    }
     
    void GetSysInfo::GetInterFaceName(CString &InterfaceName,int pNum)
    {
    	/*CGetNetData pNet;
    	pNet.GetNetworkInterfaceName(&InterfaceName,pNum);*/
     
    	POSITION pos = Interfaces.FindIndex(pNum);
    	if(pos==NULL)
    		return ;
     
    	InterfaceName = Interfaces.GetAt(pos);
    	pos = Bandwidths.FindIndex(pNum);
    	if (pos == NULL)
    		return;
    	DWORD dwBandwidth = Bandwidths.GetAt(pos);
     
    	CString str;
    	str.Format(_T("%d"),dwBandwidth);
     
    	InterfaceName = InterfaceName + str;
    }
     
    void GetSysInfo::GetDiskInfo(DWORD &dwNum,CString chDriveInfo[])
    {
    	DWORD DiskCount = 0;
     
    	//利用GetLogicalDrives()函数可以获取系统中逻辑驱动器的数量，函数返回的是一个32位无符号整型数据。
    	DWORD DiskInfo = GetLogicalDrives();
     
    	//通过循环操作查看每一位数据是否为1，如果为1则磁盘为真,如果为0则磁盘不存在。
    	while(DiskInfo)
    	{
    		//通过位运算的逻辑与操作，判断是否为1
    		Sleep(10);
    		if(DiskInfo&1)
    		{
    			DiskCount++;
    		}
    		DiskInfo = DiskInfo >> 1;//通过位运算的右移操作保证每循环一次所检查的位置向右移动一位。*/
    	}
     
    	if (dwNum < DiskCount)
    	{
    		return;//实际的磁盘数目大于dwNum
    	}
    	dwNum = DiskCount;//将磁盘分区数量保存
     
     
    	//-------------------------------------------------------------------//
    	//通过GetLogicalDriveStrings()函数获取所有驱动器字符串信息长度
    	int DSLength = GetLogicalDriveStrings(0,NULL);
     
    	  WCHAR* DStr = new WCHAR[DSLength];
    	  memset(DStr,0,DSLength);
     
    	  //通过GetLogicalDriveStrings将字符串信息复制到堆区数组中,其中保存了所有驱动器的信息。
    	  GetLogicalDriveStrings(DSLength,DStr);
     
    	  int DType;
    	  int si=0;
    	  BOOL fResult;
    	  unsigned _int64 i64FreeBytesToCaller;
    	  unsigned _int64 i64TotalBytes;
    	  unsigned _int64 i64FreeBytes;
     
    	  //读取各驱动器信息，由于DStr内部数据格式是A:\NULLB:\NULLC:\NULL，所以DSLength/4可以获得具体大循环范围
    	  for(int i=0;i<DSLength/4;++i)
    	  {
    		  Sleep(10);
    		  CString strdriver = DStr+i*4;
    		  CString strTmp,strTotalBytes,strFreeBytes;
    		  DType = GetDriveType(strdriver);//GetDriveType函数，可以获取驱动器类型，参数为驱动器的根目录
    		  switch (DType)
    		  {
    		  case DRIVE_FIXED:
    			  {
    				  strTmp.Format(_T("本地磁盘"));
    			  }
    		  	break;
    		  case DRIVE_CDROM:
    			  {
    				  strTmp.Format(_T("DVD驱动器"));
    			  }
    			  break;
    		  case DRIVE_REMOVABLE:
    			  {
    				  strTmp.Format(_T("可移动磁盘"));
    			  }
    			  break;
    		  case DRIVE_REMOTE:
    			  {
    				  strTmp.Format(_T("网络磁盘"));
    			  }
    			  break;
    		  case DRIVE_RAMDISK:
    			  {
    				  strTmp.Format(_T("虚拟RAM磁盘"));
    			  }
    			  break;
    		  case DRIVE_UNKNOWN:
    			  {
    				  strTmp.Format(_T("虚拟RAM未知设备"));
    			  }
    			  break;
    		  default:
    			  strTmp.Format(_T("未知设备"));
    			  break;
    		  }
     
    		  //GetDiskFreeSpaceEx函数，可以获取驱动器磁盘的空间状态,函数返回的是个BOOL类型数据
    		  fResult = GetDiskFreeSpaceEx (strdriver,
    			  (PULARGE_INTEGER)&i64FreeBytesToCaller,
    			  (PULARGE_INTEGER)&i64TotalBytes,
    			  (PULARGE_INTEGER)&i64FreeBytes);
    		      
    		  if(fResult)
    		  {
    			  strTotalBytes.Format(_T("磁盘总容量%fMB"),(float)i64TotalBytes/1024/1024);
    			  strFreeBytes.Format(_T("磁盘剩余空间%fMB"),(float)i64FreeBytesToCaller/1024/1024);
    		  }
    		  else
    		  {
    			  strTotalBytes.Format(_T(""));
    			  strFreeBytes.Format(_T(""));
    		  }
    		  chDriveInfo[i] = strTmp + _T("(") + strdriver + _T("):") + strTotalBytes + strFreeBytes;
    		  si+=4;
    	  }
    }
     
    void GetSysInfo::GetDisplayCardInfo(DWORD &dwNum,CString chCardName[])
    {
    	HKEY keyServ;
    	HKEY keyEnum;
    	HKEY key;
    	HKEY key2;
    	LONG lResult;//LONG型变量－保存函数返回值
     
    	//查询"SYSTEM\\CurrentControlSet\\Services"下的所有子键保存到keyServ
    	lResult = RegOpenKeyEx(HKEY_LOCAL_MACHINE,TEXT("SYSTEM\\CurrentControlSet\\Services"),0,KEY_READ,&keyServ);
    	if (ERROR_SUCCESS != lResult)
    		return;
     
     
    	//查询"SYSTEM\\CurrentControlSet\\Enum"下的所有子键保存到keyEnum
    	lResult = RegOpenKeyEx(HKEY_LOCAL_MACHINE,TEXT("SYSTEM\\CurrentControlSet\\Enum"),0,KEY_READ,&keyEnum);
    	if (ERROR_SUCCESS != lResult)
    		return;
     
    	int i = 0,count = 0;
    	DWORD size = 0,type = 0;
    	for (;;++i)
    	{
    		Sleep(5);
    		size = 512;
    		TCHAR name[512] = {0};//保存keyServ下各子项的字段名称
     
    		//逐个枚举keyServ下的各子项字段保存到name中
    		lResult = RegEnumKeyEx(keyServ,i,name,&size,NULL,NULL,NULL,NULL);
     
    		//要读取的子项不存在，即keyServ的子项全部遍历完时跳出循环
    		if(lResult == ERROR_NO_MORE_ITEMS)
    			break;
     
    		//打开keyServ的子项字段为name所标识的字段的值保存到key
    		lResult = RegOpenKeyEx(keyServ,name,0,KEY_READ,&key);
    		if (lResult != ERROR_SUCCESS)
    		{
    			RegCloseKey(keyServ);
    			return;
    		}
    		
     
    		size = 512;
    		//查询key下的字段为Group的子键字段名保存到name
    		lResult = RegQueryValueEx(key,TEXT("Group"),0,&type,(LPBYTE)name,&size);
    		if(lResult == ERROR_FILE_NOT_FOUND)
    		{
    			//?键不存在
    			RegCloseKey(key);
    			continue;
    		};
     
     
     
    		//如果查询到的name不是Video则说明该键不是显卡驱动项
    		if(_tcscmp(TEXT("Video"),name)!=0)
    		{
    			RegCloseKey(key);
    			continue;     //返回for循环
    		};
    		
    		//如果程序继续往下执行的话说明已经查到了有关显卡的信息，所以在下面的代码执行完之后要break第一个for循环，函数返回
    		lResult = RegOpenKeyEx(key,TEXT("Enum"),0,KEY_READ,&key2);
    		RegCloseKey(key);
    		key = key2;
    		size = sizeof(count);
    		lResult = RegQueryValueEx(key,TEXT("Count"),0,&type,(LPBYTE)&count,&size);//查询Count字段（显卡数目）
     
    		dwNum = count;//保存显卡数目
    		for(int j=0;j <count;++j)
    		{
    			TCHAR sz[512] = {0};
    			TCHAR name[64] = {0};
    			wsprintf(name,TEXT("%d"),j);
    			size = sizeof(sz);
    			lResult  = RegQueryValueEx(key,name,0,&type,(LPBYTE)sz,&size);
     
     
    			lResult = RegOpenKeyEx(keyEnum,sz,0,KEY_READ,&key2);
    			if (ERROR_SUCCESS)
    			{
    				RegCloseKey(keyEnum);
    				return;
    			}
    			
     
    			size = sizeof(sz);
    			lResult = RegQueryValueEx(key2,TEXT("FriendlyName"),0,&type,(LPBYTE)sz,&size);
    			if(lResult == ERROR_FILE_NOT_FOUND)
    			{
    				size = sizeof(sz);
    				lResult = RegQueryValueEx(key2,TEXT("DeviceDesc"),0,&type,(LPBYTE)sz,&size);
    				chCardName[j] = sz;//保存显卡名称
    			};
    			RegCloseKey(key2);
    			key2 = NULL;
    		};
    		RegCloseKey(key);
    		key = NULL;
    		break;
    	}
    }

测试Test\_cpu.cpp:

// Test_cpu.cpp : 定义控制台应用程序的入口点。
    //
     
    #include "stdafx.h"
    // Test_cpu.cpp : 定义控制台应用程序的入口点。
    //
     
    //=====================================================================================
    /*                 CPUID指令是intel IA32架构下获得CPU信息的汇编指令，
                       可以得到CPU类型，型号，制造商信息，商标信息，序列号，
                       缓存等一系列CPU相关的东西。
    */
    #include "stdafx.h"
    //#include <windows.h>
    #include "GetsysInfo.h"
    #include <iostream>
    #include <string>
     
    using namespace std;
     
     
    //用来存储eax,ebx,ecx,edx四个寄存器的信息
    DWORD deax;
    DWORD debx;
    DWORD decx;
    DWORD dedx;
     
    void ExeCPUID(DWORD veax)  //初始化CPU
    {
    __asm
    {
        mov eax,veax
        cpuid
        mov deax,eax
        mov debx,ebx
        mov decx,ecx
        mov dedx,edx
    }
    }
     
    /*    在Intel Pentium以上级别的CPU中，有一个称为“时间戳（Time Stamp）”的部件，
        它以64位无符号整型数的格式，记录了自CPU上电以来所经过的时钟周期数。
        由于目前的CPU主频都非常高，因此这个部件可以达到纳秒级的计时精度。
        这个精确性是上述两种方法所无法比拟的。
        在Pentium以上的CPU中，提供了一条机器指令RDTSC（Read Time Stamp Counter）
        来读取这个时间戳的数字，并将其保存在EDX:EAX寄存器对中
    */
    long GetCPUFreq()       //获取CPU频率,单位: MHZ
    {
        int start,over;
        _asm 
        {
            RDTSC
            mov start,eax
        }
        Sleep(50);
        _asm 
        {
            RDTSC
            mov over,eax
        }
        return (over-start)/50000;
    }
     
     
     
    /*   把eax = 0作为输入参数，可以得到CPU的制造商信息。
         cpuid指令执行以后，会返回一个12字符的制造商信息，
         前四个字符的ASC码按低位到高位放在ebx，中间四个放在edx，最后四个字符放在ecx。
    */
    string GetManID()   //获取制造商信息
    {
        char ID[25];        
        memset(ID,0,sizeof(ID));
        
        ExeCPUID(0);          //初始化
        memcpy(ID+0,&debx,4); //制造商信息复制到数组
        memcpy(ID+4,&dedx,4);
        memcpy(ID+8,&decx,4);
        
        return string(ID);
    }
     
     
    /*  在我的电脑上点击右键，选择属性，可以在窗口的下面看到一条CPU的信息，
        这就是CPU的商标字符串。CPU的商标字符串也是通过cpuid得到的。
        由于商标的字符串很长(48个字符)，所以不能在一次cpuid指令执行时全部得到，
        所以intel把它分成了3个操作，eax的输入参数分别是0x80000002,0x80000003,0x80000004，
        每次返回的16个字符，按照从低位到高位的顺序依次放在eax, ebx, ecx, edx。
        因此，可以用循环的方式，每次执行完以后保存结果，然后执行下一次cpuid。
    */
    string GetCPUType()
    {
        const DWORD id = 0x80000002; //从0x80000002开始,到0x80000004结束
        char CPUType[49];//用来存储CPU型号信息
        memset(CPUType,0,sizeof(CPUType));//初始化数组
        
        for(DWORD t = 0 ; t < 3 ; t++ )
        {
            ExeCPUID(id+t);
            //每次循环结束,保存信息到数组
            memcpy(CPUType+16*t+ 0,&deax,4);
            memcpy(CPUType+16*t+ 4,&debx,4);
            memcpy(CPUType+16*t+ 8,&decx,4);
            memcpy(CPUType+16*t+12,&dedx,4);
        }
        
        return string(CPUType);
    }
     
    void main() 
    { 
        cout<<"本机CPU信息如下:"<<endl;
        cout<<"CPU 主 频: "<<GetCPUFreq()<<" MHZ"<<endl;
        cout<<"CPU 制造商: "<<GetManID()<<endl;
        cout<<"CPU 型 号: "<<GetCPUType()<<endl;
       // cin.get();
     
     
    	cout<<"------------------------------------------"<<endl;
    	DWORD dwnum = 0 ;
    	CString info[20];
    	CString totalmemery,totalvirtual;
    	GetSysInfo* sys = new GetSysInfo();
    	//sys->GetDiskInfo(dwnum,info);
    	//sys->GetMemoryInfo(totalmemery,totalvirtual);
    	//wstring total = totalmemery.GetBuffer(0);
    	//wstring processname = chProcessorName.GetBuffer(0);
    	//wcout<<total<<endl;
    	//wcout<<totalvirtual.GetBuffer(0)<<endl;
     
     
     
    	CString chProcessorName;
    	CString chProcessorType;
    	DWORD dwNum;
    	DWORD dwMaxClockSpeed;
    	sys->GetCpuInfo( chProcessorName, chProcessorType, dwNum, dwMaxClockSpeed);
    	//wstring processname = chProcessorName.GetBuffer(0);//unicode要使用对应版本的函数
    	wcout<<chProcessorName.GetBuffer(0)<<endl;
    	wcout<<chProcessorType.GetBuffer(0)<<endl;
    	delete sys;
     
    	getchar();
     
    }

效果：

![Center][]

其他

ATI关于显卡检测的一个示例程序源码  
1、通过EnumDisplayDevices函数来枚举出显示设备，获取显卡信息；  
2、DISPLAY\_DEVICE结构体中的DeviceString表示显卡设备型号字符串；  
3、DISPLAY\_DEVICE结构体中的DeviceID表示了显卡设备的具体型号参数，常见的如VendorID(VEN\_后四位)和设备ID(DEV\_后四位)；  
至此相关型号信息已经获得了。具体ID值含义需要参考制造商的定义，例如：  
NVIDIA的Vender ID是0x10DE；ATI的Vendor ID是0x1002；Intel的Vendor ID是0x8086。

//-----------------------------------------------------------------------------
    // File: DeviceID.cpp
    // Copyright (c) 2006 ATI Technologies Inc. All rights reserved.
    //-----------------------------------------------------------------------------
     
     
     
    #include <windows.h>
    #include <stdio.h>
     
    int WINAPI WinMain(HINSTANCE hThisIns, HINSTANCE hLastIns, LPSTR lpszCmdLine, int nCmdShow){
    	char string[1024];
     
    	DISPLAY_DEVICE dev;
    	dev.cb = sizeof(DISPLAY_DEVICE);
    	int i = 0;
    	while (EnumDisplayDevices(NULL, i, &dev, 0)){
    		if (dev.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE){
    			char *str = string + sprintf(string, "%s\n\n", dev.DeviceString);
     
    			char *vendorID = strstr(dev.DeviceID, "VEN_");
    			char *deviceID = strstr(dev.DeviceID, "DEV_");
     
    			char *st = dev.DeviceID;
    			while ((st = strchr(st, '&')) != NULL){
    				*st = '\0';
    				st++;
    			}
     
    			if (vendorID) str += sprintf(str, "VendorID: 0x%s\n", vendorID + 4);
    			if (deviceID) str += sprintf(str, "DeviceID: 0x%s\n", deviceID + 4);
     
    			MessageBox(NULL, string, "Device", MB_OK | MB_ICONINFORMATION);
    			return 0;
    		}
    		i++;
    	}
     
    	MessageBox(NULL, "No primary device found", "Error", MB_OK | MB_ICONERROR);
    	return -1;
    }

[Center]: /images/20220828/da12d21fcf6549bdb7d43ac83b9022db.png