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 \"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 , "));}}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 earlierelse {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 40960Lunsigned 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0PERF_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1Sleep(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keyServlResult = 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keyEnumlResult = 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keylResult = 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namelResult = 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,veaxcpuidmov deax,eaxmov debx,ebxmov decx,ecxmov 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 {RDTSCmov start,eax}Sleep(50);_asm {RDTSCmov 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：
