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I have a shell extension that uses IThumbnailProvider and IInitializeWithStream interfaces to generate thumbnail previews for the registered file types. It’s working great on Windows 7 but it doesn’t work on Windows 8.
I’ve found out that Windows 8 has 2 new related interfaces: IThumbnailCachePrimer and IThumbnailSettings. But the preliminary documentation of Microsoft doesn’t explain anything…
Does anybody have some info about how the preview control system has changed in Windows 8?
Ok, actually, the thumbnail processing in Windows 8 Consumer Preview still works with the WinVista/7 API.
It’s just that by default Win8 doesn’t come with the vc++ runtimes, but only the .net versions of those runtimes…silly error :/
Well, at least now it works in Desktop mode although quite slowly. The poor performance is maybe due to the fact ｍｙ Win8 is still a beta ｒｕｎｎｉｎｇ ｗｉｔｈｉｎ ａ ｖｉｒｔｕａｌ ｍａｃｈｉｎｅ．