D3D_FEATURE_LEVEL featureLevels[] =
{
    D3D_FEATURE_LEVEL_9_3
};

// Create the Direct3D 11 API device object and a corresponding context.
ComPtr<ID3D11Device> device;
ComPtr<ID3D11DeviceContext> context;
DX::ThrowIfFailed(
    D3D11CreateDevice(
        nullptr, // Specify nullptr to use the default adapter.
        D3D_DRIVER_TYPE_HARDWARE,
        nullptr,
        creationFlags, // Set set debug and Direct2D compatibility flags.
        featureLevels, // List of feature levels this app can support.
        ARRAYSIZE(featureLevels),
        D3D11_SDK_VERSION, // Always set this to D3D11_SDK_VERSION.
        &device, // Returns the Direct3D device created.
        &m_featureLevel, // Returns feature level of device created.
        &context // Returns the device immediate context.
        )
    );


// Get the Direct3D 11.1 API device and context interfaces.
DX::ThrowIfFailed(
    device.As(&m_d3dDevice)
    );


DX::ThrowIfFailed(
    context.As(&m_d3dContext)
    );