PidLidTaskHistory Canonical Property

Applies to: Outlook 2013 | Outlook 2016

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

MAPI Properties

MAPI Canonical Properties

Mapping Canonical Property Names to MAPI Names

Mapping MAPI Names to Canonical Property Names