1# transient_task_api.h
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3
4## Overview
5
6The **transient_task_api.h** file declares the APIs for requesting, querying, and canceling transient tasks.
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8**Library**: libtransient_task.so
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10**System capability**: SystemCapability.ResourceSchedule.BackgroundTaskManager.TransientTask
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12**Since**: 13
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14**Related module**: [TransientTask](_transient_task.md)
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16
17## Summary
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19
20### Functions
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22| Name| Description|
23| -------- | -------- |
24| int32_t [OH_BackgroundTaskManager_RequestSuspendDelay](_transient_task.md#oh_backgroundtaskmanager_requestsuspenddelay) (const char \*reason, [TransientTask_Callback](_transient_task.md#transienttask_callback) callback, [TransientTask_DelaySuspendInfo](_transient_task___delay_suspend_info.md) \*info) | Requests a transient task.|
25| int32_t [OH_BackgroundTaskManager_GetRemainingDelayTime](_transient_task.md#oh_backgroundtaskmanager_getremainingdelaytime) (int32_t requestId, int32_t \*delayTime) | Obtains the remaining time of a transient task.|
26| int32_t [OH_BackgroundTaskManager_CancelSuspendDelay](_transient_task.md#oh_backgroundtaskmanager_cancelsuspenddelay) (int32_t requestId) | Cancels a transient task.|
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