Re: [PATCH v2 0/2] MR5020: Draft: kernelbase/file: implement CopyFile2

[Kartavya Vashishtha (＠kvashis)]

On Sun Feb  4 19:50:38 2024 +0000, Alfred Agrell wrote:
> SetLastError doesn't take a HRESULT. HRESULT to SetLastError feels like
> a function that should exist, but I can't find it; closest I can find is
> HRESULT_CODE, which will do something weird if CopyFile2 returns
> something other than S_OK or HRESULT_FROM_WIN32(something).
> Maybe another reviewer can enlighten us?

I discovered that through the failing tests as well.
Turns out, [it's not straightforward (Raymond Chen's blog).](https://devblogs.microsoft.com/oldnewthing/20061103-07/?p=29133).
Maybe having implementing the CopyFile2 functionality but with `SetLastError`-style error handling, and then write a wrapper over it for `CopyFile2` to convert to HRESULT?