[Bug 1429] Getting dxdiag to work perfectly

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=1429


Dmitry Timoshkov <dmitry at codeweavers.com> changed:

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             Blocks|1424                        |

Luke Benstead <kazade at gmail.com> changed:

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                 CC|                            |kazade at gmail.com




--- Comment #7 from Luke Benstead <kazade at gmail.com>  2009-01-06 08:04:00 ---
I stumbled across this bug yesterday and while bored at work I had a bit of a
play to see if I could figure it out. Just before the "DXDIAGN.DLL is out of
date" message there is the following warning:

warn:dxdiag:IDxDiagProviderImpl_QueryInterface
(0x131650)->({7d0f462f-4064-4862-bc7f-933e5058c10e},0x1036ff4),not found

The weird thing about this is the GUID it is passing in, is almost exactly the
same as IID_IDxDiagContainer except for the last character. 

IID_IDxDiagContainer -> 7D0F462F-4064-4862-BC7F-933E5058C10F
DxDiag.exe passes in -> 7d0f462f-4064-4862-bc7f-933e5058c10e

This is weird for a couple of reasons:
1. The DxDiagProvider doesn't support the container interface, so it doesn't
make sense to be a typo
2. Googling "933E5058C10E" returns no results so I don't have a clue what this
GUID relates to and I don't think any one else does
3. Aren't GUIDs usually autogenerated, this one isn't!

Now it could of course be a mistake in dxdiag.exe so I guess the next step
would be to write a little test that makes the same call on Windows and find
out what the Windows dxdiagn.dll does with this GUID. 

P.S. I knew nothing about COM yesterday morning so if the answer is obvious
please ignore me :)


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