DirectX 11 No Members Found in DXGI_SWAP_CHAIN_DESC

Hello, I am an Beginner to Direct11, I Dont know Why Visual Studio Intellisense tell me No Members found
This is my Direct3dcpp file

#include "Direct3d.h"
#include <cstdint>

    #include <dxgi.h>
    #pragma comment(lib,"d3d11.lib")

    class Direct : public Direct11
    {
    public:
     DXGI_SWAP_CHAIN_DESC sd = {};
     sd.BufferDesc.

     HRESULT hr;



    };

This is my Direct3d Header File

#pragma once
#include <Windows.h>
#include <d3d11.h>

class Direct11
{


public:
Direct11(HWND handle)
{

}

protected:
ID3D11Device* device;
IDXGIAdapter* d_adapter;
ID3D11DeviceContext* d_context;
IDXGISwapChain* d_swp_chain;


};

My Problem is I Cannot Access the Members of the DXGI_SWAP_CHAIN_DESC, Visual Studio Just Shows Errors
What Am i Supposed to Do