> ## Documentation Index
> Fetch the complete documentation index at: https://docs.abbyy.com/llms.txt
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# ExtractMrz Method of the FRPage Object

This method extracts data from a machine-readable zone (MRZ). No more than one MRZ may be extracted from each document page.

## Syntax

### C++

```cpp theme={null}
HRESULT ExtractMrz(
  IMrzProcessingParams*   MrzProcessingParams,
  IMrzData**              Result
);
```

### C\#

```csharp theme={null}
IMrzData ExtractMrz( IMrzProcessingParams MrzProcessingParams );
```

### Visual Basic .NET

```vb theme={null}
Function ExtractMrz([MrzProcessingParams As IMrzProcessingParams = Nothing]) As IMrzData
```

## Parameters

MrzProcessingParams

\[in] This variable describes the [MrzProcessingParams](/fine-reader/engine/api-reference/parameter-objects/preprocessing-analysis-recognition-and-synthesis-parameters/mrzprocessingparams) object that stores parameters of MRZ extraction. This parameter may be 0. In this case, the MRZ is extracted with default parameters.

Result

\[out, retval] A pointer to IMrzData\* pointer variable that receives the interface pointer of the output [MrzData](/fine-reader/engine/api-reference/document-related-objects/mrzdata) object. This parameter returns NULL if MRZ has not been extracted.

## Return values

This function 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

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

[MrzData](/fine-reader/engine/api-reference/document-related-objects/mrzdata)

[Machine-Readable Zone Capture](/fine-reader/engine/guided-tour/basic-usage-scenarios-implementation/machine-readable-zone-capture)