Command Designates a controlling index file or tag for a table.
Arguments nIndexNumber Specifies the number of the controlling index file or tag. Finally, tags in any open independent .cdx files are numbered in the order in which they were created. The following example illustrates how different index file types and tags are numbered. The structural .cdx file is automatically opened when video is opened. However, the records in the table are displayed and accessed in record number order and not in an indexed order.