OPENING AND CLOSING INDEXES
There are three functions needed for opening and closing indexes. As one might expect one is ixOpenIndex and another is ixCloseIndex. Both do as the name describes.
The other function is ixReloadIndex which closes any portions of the index which are in memory and then reloads them. This can be useful if another process has modified the index and these changes need to be loaded into the as seen by the current index manager.
If you have deleted any records the act of closing the index will cause the changes made to be written to the index.