Each object class has a specific set of properties. All instances of the object class take on these properties. Properties determine the behavior and outward appearance (look and feel) of the object. For example, a text box with a Display Length of 40 looks twice as wide as a text box with a Display Length of 20.
You can view and (re)set an object's properties by opening the Property Inspector for that object. Because most objects have a large number of properties, properties are organized in four categories: General, Layout, Behavior and Visual. If you want to know what a particular property does, use the context menu to request What's This help on it. For a complete list of all the properties that you can set, refer to the USoft Developer Reference Help.
Using method calls, you can influence property values at runtime. You can even add user-defined properties. User-defined properties are required for programming across windows. The Object Activator tool helps you write method calls and create user-defined properties.
Development-time and Runtime Properties