[Bug 32327] Visio 2010 Std installer fails

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=32327

--- Comment #7 from Nikolay Sivov <bunglehead at gmail.com> 2012-11-30 01:26:31 CST ---
Patch seems to work. (In reply to comment #6)

> (In reply to comment #5)
> 
> The public service API doesn't return the status code, it sets the last error
> and just returns success or failure.  Alexandre didn't seem a fan of hard
> coding errors like that with CreateFile vs NtCreateFile, though NtCreateFile is
> "more" public - so that might be different.

True, I missed that. Yes, messing with GetLastError() is not nice if you don't
have to. Better way as I see it would be to add couple of helpers like
open_scmanager() and open_service() that fully return status and use them to
implement OpenSCManagerW() etc., and then you can use them for this security
stuff.

Also patch needs cleanup like:

- moving RtlDosPathNameToNtPathName_U() closer to NtCreateFile as it's no
needed otherwise;
- you can't use CloseHandle() on SC_HANDLE, and 'hFile' name is just a 'handle'
now;

Probably it needs splitting too, to separate *Named* part from handle part.

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