Guidelines

• Derive your model class from TModel. Call ModelDeclarationsMacro in your model's public declaration, and ModelDefinitionsMacroOne in your model's definition.
• Override CreateSelection so that it returns a selection that other classes can use to access or modify data in the model. The quickest way to do this is to use the TGUIEmbedderModelSelectionFor class template to return a selection containing the entire model.
• Create public data access functions to get and set the data stored in the model (the data itself should be private).