バージョン
Start streaming the first "in_pFSFlags->uNumBytesPrefetch" bytes of the file with id "in_fileID" into cache. The stream will be scheduled only after all regular streams (not file caching streams) are serviced. The file will stay cached until either the UnpinFileInCache is called, or the limit as set by uMaxCachePinnedBytes is reached and another higher priority file (in_uPriority) needs the space. /remarks PinFileInCache()/UnpinFileInCache()/UpdateCachingPriority() are typically not used directly, but instead used via the AK::SoundEngine::PinEventInStreamCache() API. Using PinFileInCache() directly does not allow users to take advantage of sound bank data. The file and the number of bytes they wish to cache must be explicitly specified.
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