检测windows 32位程序是否运行在64位系统上

#include <windows.h>
#include <stdio.h>
typedef BOOL (WINAPI *LPFN_ISWOW64PROCESS) (HANDLE, PBOOL);
LPFN_ISWOW64PROCESS fnIsWow64Process;
BOOL IsWow64()
{
BOOL bIsWow64 = FALSE;
fnIsWow64Process = (LPFN_ISWOW64PROCESS)GetProcAddress(
GetModuleHandle(TEXT("kernel32")),"IsWow64Process");

if (NULL != fnIsWow64Process)
{
if (!fnIsWow64Process(GetCurrentProcess(),&bIsWow64))
{
// handle error
}
}
return bIsWow64;
}
void main()
{
if(IsWow64())
printf("Running on WOW64/n");
else printf("Running on 32-bit Windows/n");
}