It is easy to visually add a property or method to a form (Form/New Property) or to a class (Class/New Method).

My VFP Bible (Using VFP 5 by Michael Antonovich) indicates that you can add properties and methods to controls and forms. It shows an example for a form but not for a control. The book has examples where a method is added in code with: PROCEDURE - END PROCEDURE.

I would like to be able to add a method to a textbox control visually. Can this be done? How?