KeyView 24.4
KeyView Filter SDK C Programming Guide

# fpGetExtractInterface()

Call this function to obtain the file extraction functions. When you call this function, it assigns the function pointers in the `KVExtractInterface` structure so that you can use the functions described in File Extraction API Functions.

## Syntax

    KVErrorCode (pascal* fpGetExtractInterface)(
            KVFilterSession session,
            KVExtractInterface pExtractInterface);

## Arguments

`session` | A KeyView Filter session that you initialized by calling fpInit().
`pExtractInterface` | A pointer to a KVExtractInterface structure. Before you initialize the `KVExtractInterface` structure, use the macro `KVStructInit` to initialize the `KVStructHead` structure.

## Returns

- If the call is successful, the return value is `KVError_Success`.
- If the call is not successful, the return value is an error code that indicates the problem.

## Example

    KVStructInit(&extractInterface);
    error = filterInterface->fpGetExtractInterface(session, &extractInterface);

## Discussion

You can get only one extraction interface for each Filter session.

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Version 24.4 | Last updated September 2024

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Product: IDOL KeyView 24.4

Topic Title: fpGetExtractInterface()