Проблема инициализации DirectX

Учусь DirectX по книге "DirectX и С++. Искусство программирования" Фленовa М.Е. Пишу на Visual Studio 2015. Так вот, при попытке инициализации компилятор ругается на FAILED. Ошибка: Flags: необъявленный идентификатор.

Исходный код функции:

HRESULT DX3DInit(IDirect3D9 **ppiD3D9,
IDirect3DDevice9 **ppiD3DDevice9,
HWND hWnd,
DWORD iWidth,
DWORD iHeight,
BOOL bFullScreen)
{
if ((*ppiD3D9 = Direct3DCreate9(D3D_SDK_VERSION)) == NULL)
    return E_FAIL;
D3DPRESENT_PARAMETERS d3dpp;
ZeroMemory(&d3dpp, sizeof(d3dpp));
d3dpp.BackBufferWidth = iWidth;
d3dpp.BackBufferHeight = iHeight;
int iRes;
if (!bFullScreen)
    iRes = MessageBox(hWnd, "Use fullscreen mode?", "Screen", MB_YESNO | MB_ICONQUESTION);
else
    iRes = IDYES;
if (iRes == IDYES)
{
    d3dpp.BackBufferFormat = D3DFMT_R5G6B5;
    d3dpp.SwapEffect = D3DSWAPEFFECT_FLIP;
    d3dpp.Windowed = FALSE;
    d3dpp.FullScreen_RefreshRateInHz = D3DPRESENT_RATE_DEFAULT;
    d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_DEFAULT;
}
else
{
    RECT wndRect;
    RECT clientRect;
    GetWindowRect(hWnd, &wndRect);
    GetWindowRect(hWnd, &clientRect);
    int iWinWidth = iWidth + (wndRect.right - wndRect.left) - (clientRect.right - clientRect.left);
    int iWinHeight = iHeight + (wndRect.bottom - wndRect.top) - (clientRect.bottom - clientRect.top);
    MoveWindow(hWnd, wndRect.left, wndRect.top, iWinWidth, iWinHeight, TRUE);
    D3DDISPLAYMODE d3ddm;
    (*ppiD3D9)->GetAdapterDisplayMode(D3DADAPTER_DEFAULT, &d3ddm);
    d3dpp.BackBufferFormat = d3ddm.Format;
    d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
    d3dpp.Windowed = TRUE;
}
DWORD Falgs = D3DCREATE_MIXED_VERTEXPROCESSING | D3DCREATE_MULTITHREADED;
HRESULT hRes;
if (FAILED(hRes = (*ppiD3D9)->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd, Flags, &d3dpp, ppiD3DDevice9))) 
    return hRes;
float Aspect = (float)d3dpp.BackBufferWidth / (float)d3dpp.BackBufferHeight;
D3DXMATRIX matProjection;
D3DXMatrixPerspectiveFovLH(&matProjection, D3DX_PI / 4.0f, Aspect, 10.0f, 1000.0f);
(*ppiD3DDevice9)->SetTransform(D3DTS_PROJECTION, &matProjection);
return S_OK;

}