public Task<IEnumerable<NxDataPage>> GetReducedDataAsync(
	int index,
	IEnumerable<NxPage> pages,
	int zoomFactor,
	NxDataReductionMode reductionMode,
	AsyncHandle asyncHandle = null
)

Public Function GetReducedDataAsync ( 
	index As Integer,
	pages As IEnumerable(Of NxPage),
	zoomFactor As Integer,
	reductionMode As NxDataReductionMode,
	Optional asyncHandle As AsyncHandle = Nothing
) As Task(Of IEnumerable(Of NxDataPage))