Capture Dotnet / Classic WPF windows

Hello
Sorry, this may not be a good place to ask this question, but I think you are the only one who can help me.

I used to use BiBlt to capture off-screen WPF windows, but it is not working on windows1809 and later. ([many people have this problem](https://stackoverflow.com/questions/54572498/manipulate-system-visible-clipping-region-in-windows-1809))

I saw new Microsoft capture methods, but unfortunately none of them can capture Dotnet/Classic WPF windows that whole or part of them are off-screen.
I would appreciate it if you could please give guidance on how I could do this?

In advance, thank you for the information.
Regards,
Mitra