Re: [PATCH v9 0/6] MR4092: user32: Actually implement RealGetWindowClass{A/W}.

[Jinoh Kang (＠iamahuman)]

> I don't mean to do that for all cases, but using `StaticWndProc_common` as an example, we could just replace `DefWindowProc*` calls in case of `WM_NCCREATE` with `NtUserMessageCall`.

I see.  However, note that static control winproc sets the real class for *all* messages instead of just `WM_NCCREATE` (see `class_tests` in user32:class from this MR), and `WM_CREATE` doesn't call `DefWindowProc` at all. I guess it doesn't work with a single substitution unless the code is cleaned up.