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