Documentation

Add an ID to the tvBase's list of IDs. This list is used to specify which subset of all loaded features a particular tvBase should display. If the specified ID already exists in the widget's ID list, then no operation is performed. The function will return a value of TRUE if the ID was added to the widget's list, or if it was already present. A FALSE result means that the list does not contain the ID upon completion of this function. If an invalid ID is passed (<0) then no operation is performed and a value of FALSE is returned.

Returns:

TRUE if all went well, FALSE if ID not added to list

Parameters:

threed - handle to rendering state.
id - ID to be added.

Author:

Martin Reddy

Version:

9 April, 1999