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# holoscan::gxf::notify_entity_event

> Notify the GXF scheduler that an entity's condition has changed.

```cpp showLineNumbers={false}
bool holoscan::gxf::notify_entity_event(
    gxf_context_t context,
    gxf_uid_t component_cid
)
```

Notify the GXF scheduler that an entity's condition has changed.

This function is used by event-based conditions to signal to the scheduler that an asynchronous event has completed and the entity should be re-evaluated.

**Returns:** true if the notification was successful, false otherwise.

**Parameters**

**`context`** `gxf_context_t`

The GXF context.

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**`component_cid`** `gxf_uid_t`

The component ID of the scheduling term (condition wrapper).

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