> ## Documentation Index
> Fetch the complete documentation index at: https://docs.abbyy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# IComponentSynchronizerEvents Interface

> IComponentSynchronizerEvents interface in ABBYY FineReader Engine Visual Components on Windows — This is a callback interface that is used for reporting events from the ComponentSynchronizer object to the listeners.

<Warning>
  Visual Components are implemented in FRE for Windows.
</Warning>

This is a callback interface that is used for reporting events from the [ComponentSynchronizer](/fine-reader/engine/visual-components-reference/supplementary-objects/componentsynchronizer) object to the listeners. This interface is implemented on the client-side. See the detailed implementation advice for your development tool in [Working with Connectable Objects](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-connectable-objects).

## Methods

| Name                                                                                                                                                     | Description                                                                                                                                               |
| -------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [OnSynchronizationOver](/fine-reader/engine/visual-components-reference/supplementary-objects/icomponentsynchronizerevents/onsynchronizationover-method) | Called after Component Synchronizer has finished synchronization. Delivers to the client information on the operation which has required synchronization. |

## See also

[Working with Connectable Objects](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-connectable-objects)

[ComponentSynchronizer](/fine-reader/engine/visual-components-reference/supplementary-objects/componentsynchronizer)