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OH_CommonEvent_UnSubscribe

ohos_basic_services_kit_sys::commonevent

Function OH_CommonEvent_UnSubscribe 

Source 
pub unsafe extern "C" fn OH_CommonEvent_UnSubscribe(
    subscriber: *const CommonEvent_Subscriber,
) -> CommonEvent_ErrCode
Available on crate features commonevent and api-12 only.
Expand description

Unsubscribe event by a subscriber.

§Arguments

  • subscriber - Indicates the subscriber.

§Returns

  • Returns the error code. Returns [COMMONEVENT_ERR_OK] if the operation is successful. Returns [COMMONEVENT_ERR_INVALID_PARAMETER] if the input parameter is invalid. Returns [COMMONEVENT_ERR_SENDING_REQUEST_FAILED] if IPC request failed to send. Returns [COMMONEVENT_ERR_INIT_UNDONE] if ces not init done.

Available since API-level: 12