If you create a window by inheriting it from an existing window that has public or protected instance variables with simple data types, the instance variables display and can be modified in the descendent window’s Properties view. You see them at the bottom of the General tab page. In this illustration, the last two properties are inherited instance variables.
All public instance variables with simple data types such as integer, boolean, character, date, string, and so on display. Instance variables with the any or blob data type or instance variables that are objects or arrays do not display.