1>c:\program files (x86)\windows kits\8.0\include\um\winnt.h(146): fatal error C1189: #error : "No Target Architecture"

Question

my source code shows as following:

#include <stdio.h>
#include <Winuser.h>
#include <afxwin.h>


using namespace std;

int main()
{
CWnd *pwnd = FindWindow(NULL, _T("新建文本文档.txt"));

if (pwnd->GetSafeHwnd())
{
pwnd->ShowWindow(SW_NORMAL);
        pwnd->SetForegroundWindow();
keybd_event(VK_CONTROL, 0, 0, 0);
keybd_event('S', 0, 0, 0);
keybd_event(VK_CONTROL, 0, KEYEVENTF_KEYUP, 0);
keybd_event('S', 0, KEYEVENTF_KEYUP, 0);
}
}

my project runs base on the Visual Studio 2012,  and when I build the project, it give out the errer :1>c:\program files (x86)\windows kits\8.0\include\um\winnt.h(146): fatal error C1189: #error :  "No Target Architecture"

click the errer, i get the information as following:

#if defined(_AMD64_) || defined(_X86_)
#define PROBE_ALIGNMENT( _s ) TYPE_ALIGNMENT( DWORD )
#elif defined(_IA64_) || defined(_ARM_)
#define PROBE_ALIGNMENT( _s ) (TYPE_ALIGNMENT( _s ) > TYPE_ALIGNMENT( DWORD ) ? \
                              TYPE_ALIGNMENT( _s ) : TYPE_ALIGNMENT( DWORD ))
#elif !defined(RC_INVOKED)
#error "No Target Architecture"
#endif

#if defined(_WIN64)