PInvokeFolderOpener Created in 2021/4 What is this? Reimplement the folder selection dialog for study of CsWin32. Memo CsWin32 automatically adds AllowUnsafeBlocks = true, so it shouldn't be necessary. However, I defined it implicitly just in case. References microsoft/CsWin32 - github pinvoke.net ufcpp live - youtube FolderBrowserDialog.cs