PidLidTaskHistory Canonical Property

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Indicates the type of change that was last made to the task.

Associated properties:

dispidTaskHistory

Property set:

PSETID_Task

Long ID (LID):

0x0000811A

Data type:

PT_LONG

Area:

Task

Remarks

When the value of this property is set, the dispidTaskLastUpdate (PidLidTaskLastUpdate) property must also be set to the current time. The following table shows the dispidTaskHistory property values, listed in order of decreasing priority.

Value

Description

0x00000004

The dispidTaskDueDate (PidLidTaskDueDate) property changed.

0x00000003

Another property was changed.

0x00000001

The task assignee accepted this task.

0x00000002

The task assignee rejected this task.

0x00000005

The task was assigned to a task assignee.

0x00000000

No changes were made.

Protocol Specifications

  • [MS-OXPROPS]
    Provides property set definitions and references to related Exchange Server protocol specifications.

  • [MS-OXOTASK]
    Defines several objects that model the electronic equivalent of tasks, task assignments, and task updates.

Header Files

  • Mapidefs.h
    Provides data type definitions.

See Also

Concepts

MAPI Properties

MAPI Canonical Properties

Mapping Canonical Property Names to MAPI Names

Mapping MAPI Names to Canonical Property Names