entsel
(entsel [prompt])
Use the entsel function to let the user select a single entity.
The user is prompted to select or identify a single drawing entity.
Using entsel with no argument displays the standard "Specify entity: " prompt.
Return Value
The function returns a list containing the entity name of the drawing entity and the pick point coordinates (of the current CCS).
The function returns nil if the drawing is empty.
: (entsel)
Specify entity:
(<Ename: 44dfcf6c> (5.7398 6.3448 0.0000))
: (entsel "Select an arc or a circle: ")
Select an arc or a circle:
(<Ename: 44dfcf6c> (5.2217 7.1699 0.0000))