Fix windows mouse event structure

[octaltree]

I needed a windows mouse event and when I used this code as a base, I got strange values. According to the reference, "mouseData" and "flags" are adjacent. https://learn.microsoft.com/en-us/windows/win32/api/winuser/ns-winuser-msllhookstruct

It seems that the reason why "time" cannot be used is due to deviation due to reserved. Please confirm.