Constants (Outlook exported APIs)
This topic contains constant definitions for APIs that Outlook exports.
Outlook exposes the following dispatch identifiers (dispids) so that developers can use IDispatch::Invoke to access the corresponding property or method, or listen to the corresponding event.
| Associated constant | Dispid value | Description | Applicable interface |
|---|---|---|---|
| dispidFDirty | 0xF024 | Used to invoke the corresponding property on an item to verify whether the item has been modified but has not been saved. | Item-level objects |
| dispidShowSenderPhoto | 0xF0D0 | Used to invoke the corresponding method on the explorer or inspector to specify whether to display a contact’s picture, based on a given argument. | Explorer or inspector |
| dispidBeforePrint | 0xFC8E | Used to handle the event from the IDispatch::Invoke function that fires before a printing operation. | Application |
| dispidEventReadComplete | 0xFC8F | Used to handle the event from the IDispatch::Invoke function that fires when Outlook has completed reading the properties of the item. | Item-level objects |