TUniDirectionalBufIndex
ScrollBackward
ScrollForward
GetCurrent
ScrollFirst
ScrollLast
SetToFirstRecord
SetToLastRecord
StoreCurrentRecord
RestoreCurrentRecord
CanScrollForward
DoScrollForward
StoreCurrentRecIntoBookmark
StoreSpareRecIntoBookmark
GotoBookmark
InitialiseIndex
InitialiseSpareRecord
ReleaseSpareRecord
BeginUpdate
AddRecord
InsertRecordBeforeCurrentRecord
RemoveRecordFromIndex
OrderCurrentRecord
EndUpdate
TBufIndex
Create
GetRecord
BookmarkValid
CompareBookmarks
SameBookmarks