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# SynchronizationOperationEnum

> SynchronizationOperationEnum enumeration in ABBYY FineReader Engine Visual Components on Windows — SynchronizationOperationEnum enumeration constants are used to define operations which require synchronization.

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

SynchronizationOperationEnum enumeration constants are used to define operations which require synchronization.

```
typedef enum {
 SOP_PageChanged,
 SOP_FocusChanged
} SynchronizationOperationEnum;
```

## Elements

| Name                | Description                   |
| ------------------- | ----------------------------- |
| SOP\\\_PageChanged  | Active page has been changed. |
| SOP\\\_FocusChanged | Focus has been changed.       |

## Used in

[IComponentSynchronizerEvents::OnSynchronizationOver](/fine-reader/engine/visual-components-reference/supplementary-objects/icomponentsynchronizerevents/onsynchronizationover-method)