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Retrieving Trigger Strings Example

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You can retrieve the trigger strings of a known trigger using the IScheduledWorkItem or ITaskTrigger interface, depending on the type of object you are working with.

When working with a task object, use the methods of the IScheduledWorkItem interface to retrieve the trigger strings of a work item.

When you are working with a task trigger object, use the methods of the ITaskTrigger interface to retrieve the trigger string of the trigger.

The following example shows how to use IScheduledWorkItem::GetTriggerString to display the strings of all triggers associated with a known task.

The following procedure describes how to retrieve the trigger strings of a task.

To retrieve the trigger strings of a task

  1. Call CoInitialize to initialize the COM library and CoCreateInstance to get a Task Scheduler object. (This example assumes that the Task Scheduler service is running.)
  2. Call ITaskScheduler::Activate to get the ITask interface of the task object. (Note that this example gets the "Test Task" task.)
  3. Call ITask::GetTriggerCount to find out how many triggers are associated with a task. (Note that GetTriggerCount is an IScheduledWorkItem method inherited by ITask.)
  4. Display the trigger strings, calling ITask::GetTriggerString for each trigger associated with the task. (Note that GetTriggerString is an IScheduledWorkItem method inherited by ITask.)
  5. Release all resources. Call CoTaskMemFree to release the trigger strings and ITask::Release to release the ITask interface. (Note that Release is an IUnknown method inherited by ITask.)
For a code example of See
Retrieving a trigger string for all the triggers associated with a known task Code Example: Retrieving Trigger Strings

 

Task Scheduler 1.0 Examples