Entity Context and Coordinate Transform Data
Entity Name Functions
Entity Data Functions
The entity access functions are relatively slow. It is best to get the contents of a particular entity (or symbol table entry) once and keep that information stored in memory, rather than repeatedly ask AutoCAD for the same data. Be sure the data remains valid. If the user has an opportunity to alter the entity or symbol table entry, you should reissue the entity access function to ensure the validity of the data.