The IFilter::GetChunk method positions the filter at the beginning of the next chunk, or at the first chunk if this is the first call to the GetChunk method, and returns a description of the current chunk.

FilterCode..::..IFilterReturnCodes GetChunk(
	out FilterCode..::..STAT_CHUNK pStat
)

Function GetChunk ( _
	<OutAttribute> ByRef pStat As FilterCode..::..STAT_CHUNK _
) As FilterCode..::..IFilterReturnCodes

FilterCode..::..IFilterReturnCodes GetChunk(
	[OutAttribute] FilterCode..::..STAT_CHUNK% pStat
)