Thanks Tim. You’re right. What I want is something like that:
I have a base class called Shading. There are Subclasses of Shading: ColorShading (with BackgroundColor As Color Property) & PictureShading (with BackgroundPicture As Picture Property). Now I simply want to do something like this for Shading instances:
Var shad As Shading ' Base Class.
shad = Color.Red ' Should return a ColorShading (Subclass of Shading) Instance.
' or
shad = MyPicture ' Should return a PictureShading (Subclass of Shading) Instance.