About APIs exported by Outlook

Outlook exports the following definitions, data structures, functions, and interfaces that were originally designed for internal use but are now exposed for public consumption.

Definitions

• Constants (Outlook exported APIs)

Data structures

• TZDEFINITION

• TZREG

• TZRULE

Functions

• HrCreateApptRebaser

• HrProcessConvActionForSentItem

• RebaseTaskComplete

• RebaseTaskProgress

Interfaces

• IOlkApptRebaser

Events

• Available events and their dispids (Outlook exported APIs)

Additionally, using the dispatch identifiers, dispidFDirty and dispidShowSenderPhoto, you can achieve the following tasks:

• Determine whether an Outlook item has been modified but not saved (Outlook Auxiliary Reference)

• Specify whether to display a contact's picture in Outlook (Outlook Auxiliary Reference)