[PATCH] dxgi/tests: Avoid an ever chaning value in a dxgi failure message.

[Henri Verbeet]

On Mon, 16 Mar 2020 at 14:06, Francois Gouget <fgouget at codeweavers.com> wrote:
>
> On Sun, 15 Mar 2020, Marvin wrote:
> [...]
> > === w2008s64 (64 bit report) ===
> >
> > dxgi:
> > dxgi.c:5063: Test failed: Got unexpected message 0x46, wparam 0, lparam 0x22fa20.
> > dxgi.c:5063: Test failed: Got unexpected message 0x24, wparam 0, lparam 0x22f690.
> > dxgi.c:5063: Test failed: Got unexpected message 0x1a, wparam 0x2f, lparam 0x22fa48.
>
> The patch was designed to avoid false positives from messages such as
> WM_DWMNCRENDERINGCHANGED where lparam is 0:
>
> https://testbot.winehq.org/JobDetails.pl?Key=67055#k108
> dxgi.c:5063: Test failed: Got unexpected message 0x31f, hwnd 001C01E4, wparam 0x1, lparam 0.
>
> But of course it won't help with unexpected WM_WINDOWPOSCHANGING,
> WM_GETMINMAXINFO and WM_WININICHANGE messages since lparam is a pointer
> for those (lparam is sometimes NULL for WM_WININICHANGE). Fortunately
> these are pretty rare, they happened only three times in the recorded
> history (vs. 153 instances of WM_DWMNCRENDERINGCHANGED):
>
In general, this seems like just papering over the problems. But in
this specific case, do we know why we get those spurious
WM_DWMNCRENDERINGCHANGED messages? If they're legitimate, it shouldn't
be too hard to specifically filter them out in test_wndproc().