user32: avoid NULL pointer access in DefWindowProcA WM_NCCREATE

Felix Nawothnig flexo at
Fri Mar 9 08:53:17 CST 2007

Jan Zerebecki wrote:
>>cs is never NULL at that point.
> Where should it be checked for NULL, then? Or what does it prevent to be

cs == lParam. And this code is inside if (lParam != NULL).

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