can't be that difficult and is a major security improvement.
https://docs.microsoft.com/en-us/uwp/api/windows.applicationmodel.datatransfer.clipboardcontentoptions.isroamable
https://docs.microsoft.com/en-us/uwp/api/windows.applicationmodel.datatransfer.clipboardcontentoptions.isallowedinhistory#Windows_ApplicationModel_DataTransfer_ClipboardContentOptions_IsAllowedInHistory
Those two options set properly should do the trick when using this method
https://docs.microsoft.com/en-us/uwp/api/windows.applicationmodel.datatransfer.clipboard.setcontentwithoptions
to get the content to the clipboard.