Справочник Пользователя для ITT Rule IDL Version 7.0
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Chapter 4: Property Management
Property Update Mechanism
iTool Developer’s Guide
Property Update Mechanism
When a user changes the value of a property via the property sheet interface, the
object that implements the property is automatically updated. If the object has a
visual representation, the display of the iTool window is also updated automatically.
object that implements the property is automatically updated. If the object has a
visual representation, the display of the iTool window is also updated automatically.
The update mechanism is handled by the SetProperty method; as long as any
SetProperty methods you create call the SetProperty methods of their superclasses,
there is nothing more you need to do.
SetProperty methods you create call the SetProperty methods of their superclasses,
there is nothing more you need to do.
Property changes are automatically recorded by the iTool undo/redo system. You do
not need to supply any extra code to support undo/redo.
not need to supply any extra code to support undo/redo.