[Bug 30569] DVDRanger4: Error at startup (property sheet tab control)

http://bugs.winehq.org/show_bug.cgi?id=30569

--- Comment #5 from Nikolay Sivov  2012-05-17 00:08:03 CDT ---
I sent a patch to fix these failures:

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0024:Call user32.GetDlgItem(00010182,00003020) ret=7e11ffe1
0024:Ret  user32.GetDlgItem() retval=00000000 ret=7e11ffe1
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http://www.winehq.org/pipermail/wine-patches/2012-May/114277.html

but this is not related to a bug really. NULL hwnd still causes an exception
after IsWindow(). Needs another round of investigation.