Task<IEnumerable<NxStackPage>> GetStackDataAsync(
	int index,
	IEnumerable<NxPage> pages,
	int maxNbrCells = 0,
	AsyncHandle asyncHandle = null
)

Function GetStackDataAsync ( 
	index As Integer,
	pages As IEnumerable(Of NxPage),
	Optional maxNbrCells As Integer = 0,
	Optional asyncHandle As AsyncHandle = Nothing
) As Task(Of IEnumerable(Of NxStackPage))