The IExchExtUserEvents interface is used to enable an extension object to handle changes to the currently-selected list box item, text, or object. IExchExtUserEvents is used in all contexts except EECONTEXT_TASK and EECONTEXT_SESSION.
This interface is optional.
| Header file: | EXCHEXT.H |
| Exposed by: | Extension objects |
| Implemented by: | Extension objects |
| Called by: | Microsoft Exchange |
| Corresponding pointer type: | LPEXCHEXTUSEREVENTS |
| OnSelectionChange | Enables the extension object to enable, disable, or update visual elements. |
| OnObjectChange | Enables the extension object to enable, disable, or update visual elements in an object. |