Arguments

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

transparency  (integer or double)  the transparency value to be assigned; if NIL, any transparency override is removed
can be
1. integer  0...255
2. double  0...1.0

Return

T if the transparency value is successfully applied, NIL otherwise

Example

Remarks

this is a BricsCAD-specific function !