Re: [PATCH 3/3] ws2_32: Add asynchronous support for TransmitFile.

[Alexandre Julliard]

"Erich E. Hoover"  writes:
> -
>    LARGE_INTEGER offset;
> -
>    int status;
> -
> -
>    /* set the file offset to the desired point */
> -
>    offset.u.LowPart = overlapped->u.s.Offset;
> -
>    offset.u.HighPart = overlapped->u.s.OffsetHigh;
> -
>    SetFilePointerEx( wsa->file, offset, NULL, FILE_BEGIN );

You need to handle overlapped files differently, using pread() instead
of setting the file pointer.