IUISimplePropertySet is a read-only interface that can be implemented by the Windows Ribbon framework and a Ribbon host application, depending on the situation. When implemented by the Ribbon framework, IUISimplePropertySet defines the method for retrieving property key values. In a host application, IUISimplePropertySet is implemented for each item in an item gallery IUICollection object and defines the method for retrieving properties of the selected item.

IUISimplePropertySet is a read-only interface that can be implemented by the Windows Ribbon framework and a Ribbon host application, depending on the situation. When implemented by the Ribbon framework, IUISimplePropertySet defines the method for retrieving property key values. In a host application, IUISimplePropertySet is implemented for each item in an item gallery IUICollection object and defines the method for retrieving properties of the selected item.

IUISimplePropertySet is a read-only interface that can be implemented by the Windows Ribbon framework and a Ribbon host application, depending on the situation. When implemented by the Ribbon framework, IUISimplePropertySet defines the method for retrieving property key values. In a host application, IUISimplePropertySet is implemented for each item in an item gallery IUICollection object and defines the method for retrieving properties of the selected item.

The IUICollectionChangedEvent interface is implemented by the application and defines the method required to handle changes to a collection at run time.