> ## 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.

# PreprocessAnalyzeRecognize Method of the FRPage Object

This method performs preprocessing, layout analysis, recognition, and page synthesis of the page.

## Syntax

### C++

```cpp theme={null}
HRESULT PreprocessAnalyzeRecognize( IPageProcessingParams* PageProcessingParams );
```

### C\#

```csharp theme={null}
void PreprocessAnalyzeRecognize( IPageProcessingParams PageProcessingParams );
```

### Visual Basic .NET

```vb theme={null}
Sub PreprocessAnalyzeRecognize([PageProcessingParams As IPageProcessingParams = Nothing])
```

## Parameters

PageProcessingParams

\[in] The [PageProcessingParams](/fine-reader/engine/api-reference/parameter-objects/preprocessing-analysis-recognition-and-synthesis-parameters/pageprocessingparams) object that stores parameters of layout analysis and recognition. This parameter may be 0. In this case, the page is processed with default parameters, or, if a [profile](/fine-reader/engine/guided-tour/advanced-techniques/working-with-profiles) has been loaded, the parameters set by this profile are used.

## Return values

If layout analysis or recognition is interrupted by the user, this method will return E\_ABORT. It also returns the [standard return codes of ABBYY FineReader Engine functions](/fine-reader/engine/api-reference/return-codes).

## Remarks

This method may report events to the listeners attached to the IConnectionPointContainer interface of the [FRPage](/fine-reader/engine/api-reference/document-related-objects/frpage) object.

## See also

[FRPage](/fine-reader/engine/api-reference/document-related-objects/frpage)

[Working with Profiles](/fine-reader/engine/guided-tour/advanced-techniques/working-with-profiles)

[Tuning Parameters of Preprocessing, Analysis, Recognition, and Synthesis](/fine-reader/engine/guided-tour/advanced-techniques/tuning-parameters-of-preprocessing-analysis-recognition-and-synthesis)