一起做游戏(四)

    //修改视口(即在窗口的哪个位置显示)

    D3DVIEWPORT9 leftViewPort;

    leftViewPort.X      = 0;
    leftViewPort.Y      = 0;
    leftViewPort.Width  = g_dwBackBufferWidth / 2;
    leftViewPort.Height = g_dwBackBufferHeight;
    leftViewPort.MinZ   = 0.0f;
    leftViewPort.MaxZ   = 1.0f;

    g_pd3dDevice->SetViewport( &leftViewPort );