[Windows VC++] Check whether the current process is running on the x64

IsRunningOnX64.cpp

#include <Windows.h>
BOOL IsRunningOnX64()
{
	BOOL isRunningOnX64 = FALSE;
	typedef BOOL(WINAPI *LPFN_ISWOW64PROCESS) (HANDLE, PBOOL);
	LPFN_ISWOW64PROCESS IsWow64Process =
		(LPFN_ISWOW64PROCESS)GetProcAddress(
			GetModuleHandle(TEXT("kernel32")), "IsWow64Process");
	if (IsWow64Process != 0) {
		IsWow64Process(GetCurrentProcess(), &isRunningOnX64);
	}
	return isRunningOnX64;
}