KeyView 23.2

# VAPIMWP_VIEW_CANMAGNIFY

Determines whether the document can be magnified. This is a parameter of the `VAPIM_VIEW` message.

## Syntax

    #include <kvvapi.h>
    SendMessage(hWndVAPI, VAPIM_VIEW, VAPIMWP_VIEW_CANMAGNIFY,
                (LPARAM) (BOOL*) lpbCanMagnify );

## Arguments

Argument | Description
--- | ---
`hWndVAPI` | The handle of the VAPI window.
`lpbCanMagnify` | A pointer to a flag that returns `TRUE` or `FALSE`, depending on whether the document can be magnified.

## Returns

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

## Discussion

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

Copyright 2016-2023 Open Text
Version 23.2 | Last updated March 2023

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Product: IDOL KeyView 23.2

Topic Title: VAPIMWP_VIEW_CANMAGNIFY