windows平台下，c++获取cpu型号，读取注册表获取系统软硬件信息代码

#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

#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;
}
}

// 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();

}