File Content Extraction 25.1
Viewing SDK Programming Guide

# VAPIMWP_FILE_UNZIP

Use this message to extract selected subfiles in a container file either to disk or to a Viewing window. Container file types include ZIP, TAR, or PST. This prompts the user to specify a target directory and password (if required).

## Syntax

    #include <kvvapi.h>
    SendMessage(hWndVAPI, VAPIM_FILE, VAPIMWP_FILE_UNZIP,
               (LPARAM) (BOOL) bUnzipToDisk );

## Arguments

Argument | Description
--- | ---
`hWndVAPI` | The handle of the VAPI window.
`bUnZipToDisk` | A flag that is `TRUE` to extract to disk, `FALSE` (the default) to extract and view.

## Returns

`SendMessage()` returns `TRUE` on success; `FALSE` otherwise.

## Discussion

Use this message to implement an Extract menu or toolbar button. You can extract the selected file to disk, or extract and view it.

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Version 25.1 | Last updated January 2025

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Product: File Content Extraction 25.1

Topic Title: VAPIMWP_FILE_UNZIP