#include<Windows.h>

typedefvoid(WINAPI*PGNSI)(LPSYSTEM_INFO);

Dialog::Dialog(QWidget*parent):

QDialog(parent),

ui(newUi::Dialog)

{

ui->setupUi(this);

boolIsWin64=false;

#ifdefQ_OS_WIN

OSVERSIONINFOEXosvi;

SYSTEM_INFOsi;

PGNSIpGNSI;

ZeroMemory(&si,sizeof(SYSTEM_INFO));

ZeroMemory(&osvi,sizeof
 
(OSVERSIONINFOEX));

osvi.dwOSVersionInfoSize=sizeof(OSVERSIONINFOEX);

GetVersionEx((OSVERSIONINFO*)&osvi);

pGNSI=(PGNSI)GetProcAddress(

GetModuleHandle(TEXT("kernel32.dll")),

"GetNativeSystemInfo");

if(NULL!=pGNSI)

pGNSI(&si);

elseGetSystemInfo(&si);

if(si.wProcessorArchitecture==PROCESSOR_ARCHITECTURE_AMD64
 
)

{

IsWin64=true;

}

elseif(si.wProcessorArchitecture==PROCESSOR_ARCHITECTURE_INTEL)

{

IsWin64=false;

}

#endif

qDebug()<<"the64bit:"<<IsWin64;

}

需要注意的幾個地方：

1.標頭檔案

#include<Windows.h>

2.

typedefvoid(WINAPI*PGNSI)(LPSYSTEM_INFO);