Selection Set Manipulation Functions Reference (AutoLISP)

The following table provides summary descriptions of the AutoLISP selection set manipulation functions.

Selection set manipulation functions
Function	Description
(ssadd [ename [ss]])	Adds an object (entity) to a selection set, or creates a new selection set
(ssdel ename ss)	Deletes an object (entity) from a selection set
(ssget [mode] [pt1 [pt2]] [pt-list] [filter-list])	Prompts the user to select objects (entities), and returns a selection set
(ssgetfirst)	Determines which objects are selected and gripped
(sslength ss)	Returns an integer containing the number of objects (entities) in a selection set
(ssmemb ename ss)	Tests whether an object (entity) is a member of a selection set
(ssname ss index)	Returns the object (entity) name of the indexed element of a selection set
(ssnamex ss index)	Retrieves information about how a selection set was created
(sssetfirst gripset [pickset])	Sets which objects are selected and gripped