Arguments

layer  specifies one or more layer(s) to apply the viewport-specific color
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)

color  (integer)  the index color value to be assigned; if NIL, any color override is removed

Return

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

Example

Remarks

this is a BricsCAD-specific function !