Sample for WinUI3

[khoabui1412]

Hi,
I'm trying to apply TerraFx DirectX in WinUI3, but I can't find any related sample. More detail, I don't know how to connect SwapChainPanel(UI element) to swapchain of DirectX, I tried:

 public void SwapChainLoaded(object sender, RoutedEventArgs e) //sender is SwapChainPanel UI element
        {
            var nativePanel = sender.As<ISwapChainPanelNative>(); //Error at here
            IDXGISwapChain1 swapChainBuffer = (IDXGISwapChain1)(_videoRender?.GetSwapChain()); //Get swapchain returned by TerraFx
            unsafe
            {
                nativePanel.SetSwapChain((IDXGISwapChain*)&swapChainBuffer);
            }
        }

When trying to cast SwapChainPanel to ISwapChainPanelNative, it throws error: 'Unable to cast object of type 'WinRT.IInspectable' to type 'TerraFX.Interop.WinRT.ISwapChainPanelNative. Am I missing something on this?
Thanks.

[khoabui1412]

I've founded a very good project for reference: https://github.com/Sergio0694/ComputeSharp. It helps to solve my problem.
Thank you.