http://bugs.winehq.org/show_bug.cgi?id=21708
--- Comment #41 from Henri Verbeet hverbeet@gmail.com 2013-05-26 15:04:46 CDT --- That patch doesn't really make sense, though it does suggest something goes wrong with the wglCreateContextAttribsARB() call. From what you posted it seems it doesn't create a context / creates a broken context, but doesn't return an error either.