File Content Extraction 26.1
Viewing SDK Programming Guide

# VAPINMWP_INIT_DISABLEUI

Determines whether the user interface should be disabled. This is a parameter of the `VAPINM_INIT` notification message.

## Syntax

    #include <kvvapi.h>
    VAPINM_INIT = uMsg;
    VAPINMWP_INIT_DISABLEUI = wParam;
    (lParam is not used)

## Returns

Returns `TRUE` to disable the user interface; otherwise it returns `FALSE`. The default is `FALSE`.

## Discussion

This message is received when a Viewer asks VAPI if the user interface is disabled. The Viewer does this before a user interface action, such as creating a dialog box.

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Version 26.1 | Last updated January 2026

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Product: File Content Extraction 26.1

Topic Title: VAPINMWP_INIT_DISABLEUI