File Content Extraction 25.2
Viewing SDK Programming Guide

# VAPIMWP_VIEW_GETMAGNIFY

Gets the magnification of the document. This is a parameter of the `VAPIM_VIEW` message.

## Syntax

    #include <kvvapi.h>
    SendMessage(hWndVAPI, VAPIM_VIEW, VAPIMWP_VIEW_GETMAGNIFY,
               (LPARAM) (int*) lpnMagnify );

## Arguments

Argument | Description
--- | ---
`hWndVAPI` | The handle of the VAPI window.
`lpnMagnify` | A pointer to an integer that returns the document magnification: `0` – Custom `-1` – Page width `-2` – Page size `-3` – Fit selection to window

## Returns

- `SendMessage()` returns `TRUE` if the call succeeds, in which case `lpnMagnify` returns the magnification.
- `SendMessage()` returns `FALSE` if the call fails (for example, if there are invalid arguments or if no document is open), in which case `lpnMagnify` is undefined.

## Discussion

Use this message to set the state of a Magnify menu item or toolbar button.

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Version 25.2 | Last updated April 2025

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Product: File Content Extraction 25.2

Topic Title: VAPIMWP_VIEW_GETMAGNIFY