C++判断 *** 作系统是32位还是64位

c++中检测系统是32位还是64位搭型的方法如下：

1、定义一个函数getWindowsBit，传入布尔值：

bool getWindowsBit(bool &isWindows64bit)

{

预编译语句，判断32位成立，那么就把isWindows64bit置为true

#if _WIN64

isWindows64bit = true

return true

预编译语句，判断32位成立，那么念枝枯就把isWow64置为false

#elif _WIN32

BOOL isWow64 = FALSE

//IsWow64Process is not available on all supported versions of Windows.

//Use GetModuleHandle to get a handle to the DLL that contains the function

//and GetProcAddress to get a pointer to the function if available.

LPFN_ISWOW64PROCESS fnIsWow64Process = (LPFN_ISWOW64PROCESS)

GetProcAddress(GetModuleHandle(TEXT("kernel32")),"IsWow64Process")

2、实际的判断逻辑，根仔洞据处理器函数GetCurrentProcess来判断

if(fnIsWow64Process)

{

if (!fnIsWow64Process(GetCurrentProcess(), &isWow64))

return false

if(isWow64)

isWindows64bit = true

else

isWindows64bit = false

return true

}

else

return false

#else

assert(0)

return false

#endif

}

这个有很多办法，我先给你列举最简单的：

typedef void (WINAPI *PGNSI)(LPSYSTEM_INFO)

void TestFunc()

{

    PGNSI pGNSI

    SYSTEM_INFO si

    ZeroMemory(&si, sizeof(SYSTEM_INFO))

    hMoudle = LoadLibrary("ntdll.dll")

    //pGNSI的值就是指乎函数的地址

    pGNSI = (PGNSI)GetProcAddress(hModule,"ZwQueryInformationProcess")

}

还有从唯敏悉内拿配存中载入，PE分析，对比输出表中的函数等，稍微复杂一些！楼主感兴趣可以自己去查

typedef void (WINAPI *PGNSI)(LPSYSTEM_INFO)pGNSI = (PGNSI)GetProcAddress(GetModuleHandle(_T("kernel32.dll")), "GetNativeSystemInfo")if (NULL != pGNSI) { pGNSI(&si)} else { GetSystemInfo(&si)}

通过粗野判改困断 si.wProcessorArchitecture

如果核凳念是 PROCESSOR_ARCHITECTURE_AMD64 // 64 bits如果是 PROCESSOR_ARCHITECTURE_INTEL// 32 bits

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