1。The name of the class
2。The library the class was loaded from
3。The class definition of its ancestor, if any
4。The class definition of its parent or container object, if any
5。Whether the class is autoinstantiated
6。Whether the class is a system class (defined by PowerBuilder) or a user-defined object (defined in a PowerBuilder PBL)
7。The classes the object contains, such as the controls contained in a window