Re: [PATCH v11 0/5] MR9112: XCOPY and COPY should not attempt to copy a file to itself.

[eric pouech (＠epo)]

On Thu Nov  6 15:34:03 2025 +0000, Joe Souza wrote:
> CopyFileW returns ERROR_SHARING_VIOLATION in the case where a file is
> attempted to copy onto itself.  How to differentiate between this and
> copying onto a different file that may be open by another process?  That
> is the purpose of the IsSameFile function.
> if mean something like:

```
if (!CopyFileW())
{
    if (GetLastError() == ERROR_SHARING_VIOLATION && IsSameFile())
    {...}
    else
    {...}
}
```

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/9112#note_121136