> ## Documentation Index
> Fetch the complete documentation index at: https://docs.abbyy.com/llms.txt
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# OnScanComplete Method of the IScanCallback Interface

<Note>
  This method is implemented in FRE for Windows.
</Note>

This method notifies the client that the scanning operation is completed. It has to be implemented on the client-side.

## Syntax

### C++

```cpp theme={null}
HRESULT OnScanComplete();
```

### C\#

```csharp theme={null}
void OnScanComplete();
```

### Visual Basic .NET

```vb theme={null}
Sub OnScanComplete()
```

## Return values

This method has no specific return values. It returns the [standard return values of ABBYY FineReader Engine functions](/fine-reader/engine/api-reference/return-codes).

## See also

[IScanCallback](/fine-reader/engine/api-reference/mechanism-objects/iscancallback)