[Bug 18985] access violation in HTML-Kit 292

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=18985

--- Comment #29 from Damjan Jovanovic <damjan.jov at gmail.com> ---
Why does that message crash the application? It's one or more of the following:
1. The message contents are wrong.
2. The message is sent when it shouldn't be.
3. The message is sent synchronously using SendMessage() instead of
asynchronously using PostMessage().
4. The message and its timing are right, but the listview state is wrong in
some other way, and that message just triggers the processing that crashes as a
result of that wrongness.

(Hopefully it's one of the easier cases, as dlls/comctl32/listview.c is 11948
lines long...)

1. A WINEDEBUG='+listview' log shows:
002c:trace:listview:notify_listview (code=-101, plvnm=iItem=0, iSubItem=0,
uNewState=0x0, uOldState=0x0, uChanged=0x1, ptAction=(0,0), lParam=26371760)
which is also sent earlier and doesn't crash.
2. Nope. It gets sent the same way several times, only the 4th time crashes.
3. Not possible, our tests use SendMessage() too.
4. Sadly, this is probably it.

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