C++ 在directx11代码中更改全屏模式下的刷新率无效

我希望能够在代码中首次初始化后更改刷新率。 我用的是DX11.0 据我目前所知，基本上有两种方法可以做到这一点。 第一个是使用IDXGIFactory:：CreateSwapChain以所需的刷新率重新创建swapchain。 第二个是使用IDXGISwapChain:：ResizeTarget。用所需的刷新率填充说明

下面是第一种方法的代码：

DXGI_SWAP_CHAIN_DESC swapchain_desc;
ZeroMemory(&swapchain_desc,sizeof(swapchain_desc));
sSwapChain->GetDesc(&swapchain_desc);//get the description from the original swapchain

//release the backbuffer
sContext->ClearState();
sContext->Flush();

sBackBufferRenderTargetView.Release();
sBackBufferTexture.Release();

//release the current swapchain
sSwapChain.Release();

//create the new swapchain with my desired refreshrate
swapchain_desc.BufferDesc.Width = sDeviceMode.dmPelsWidth;//sDeviceMode is a device mode specified by user
swapchain_desc.BufferDesc.Height = sDeviceMode.dmPelsHeight;
swapchain_desc.BufferDesc.RefreshRate.Numerator= sDeviceMode.dmDisplayFrequency;
swapchain_desc.Windowed = false;

COMPtr<IDXGISwapChain> pSwapChain;
HRESULT hr = sDXGIFactory->CreateSwapChain(sD3D11Device,&swapchain_desc,&pSwapChain);
gAssert(SUCCEEDED(hr));
hr = pSwapChain->QueryInterface(&sSwapChain);
gAssert(SUCCEEDED(hr));

sSwapChain->SetFullscreenState(true,nullptr);

sSwapchain->ResizeTarget的返回结果也是S_OK，但是我想要的刷新率没有设置到监视器

---

如果有人能指出我的错误，我们将不胜感激。

文档中说，您必须在

DXGI\u SWAP\u CHAIN\u FLAG\u ALLOW\u MODE\u SWITCH\u DESC:：Flags

字段中设置

DXGI\u SWAP\u CHAIN\u DESC:：Flags

标志才能切换视频模式。

ohhhhhhh！！！这就解决了问题！非常感谢你！！

DXGI_MODE_DESC mode_desc;
ZeroMemory(&mode_desc,sizeof(mode_desc));

mode_desc.Width = sDeviceMode.dmPelsWidth;
mode_desc.Width = sDeviceMode.dmPelsHeight;
mode_desc.RefreshRate.Numerator= sDeviceMode.dmDisplayFrequency;
mode_desc.RefreshRate.Denominator= 1;
mode_desc.Format = swapchain_desc.BufferDesc.Format;
mode_desc.Scaling= swapchain_desc.BufferDesc.Scaling;

hr = sSwapchain->ResizeTarget(&mode_desc);
gAssert(SUCCEEDED(hr));

sSwapChain->SetFullscreenState(true,nullptr);