File Content Extraction 26.1
Filter SDK C Programming Guide

# fpGetExtractInfo()

This function returns information about a stream opened by fpOpenSubFile().

## Syntax

    int (pascal *fpGetExtractInfo) (
           KVInputStream *stream,
           KVSubFileExtractInfo *extractInfo);

## Arguments

`stream` | The pointer to the `KVInputStream` structure returned by fpOpenSubFile().
`extractInfo` | On success, this KVSubFileExtractInfo points to a newly allocated structure, which provides information about the extracted subfile.

## Returns

If an issue occurs when obtaining the extraction information, the return value is an error code. Otherwise, the return value is `KVERR_Success`.

## Lifetime and Memory Management

You must call fpFreeStruct() to free the memory allocated for `extractInfo`. Call fpFreeStruct() only when `fpGetExtractInfo()` returns `KVError_Success`. You must free this memory before you call fpCloseSubFile().

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Version 26.1 | Last updated January 2026

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Product: File Content Extraction 26.1

Topic Title: fpGetExtractInfo()