Arguments

layer  specifies one or more layer(s) to apply the viewport-specific linetype
can be :
1. name  (string)  the name of 1 layer
2. ename  (ename)  the entity name of the layer
3. enameList  (list of name | ename)  list of 1 or more layer entity string names and/or enames

viewport  specifies one or more viewport
can be
1. ename  (ename) the viewport's entity name
2. cvport  (integer)  the viewport's CVPORT viewport number
3. (list ename cvport ...)  list ename(s) and/or cvport(s)

linetype  the linetype value to be assigned; if NIL, any linetype override is removed
can be
1. name  (string)  the name of 1 layer
2. ename  (ename)  the entity name of the layer

Return

T if the linetype value is successfully applied resp. removed, NIL otherwise

Example

Remarks