MapiTaskHistory

MapiTaskHistory enumeration (6 values)

Indicates the type of change that was last made to the Task object.

Value	Description
DueDateChanged	The PidLidTaskDueDate property changed.
AnotherPropertyChanged	Another property was changed.
Accepted	The task assignee accepted this Task object.
Rejected	The task assignee rejected this Task object.
Assigned	The Task object has been assigned to a task assignee.
NoChanges	No changes were made.