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Hi,I managed to return a thumbnail for a UTI that is not registered yet with a thumbnail / quicklook provider.However having public.jpeg or public.image in QLSupportedContentTypes does not make provideThumbnailForFileRequest get called.Is there any way I can override the system thumbnail provider?I also want to return an error in certain cases so that the OS falls back to the system generator.Thanks
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by guruz.
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