File Content Extraction 25.3
Viewing SDK Programming Guide

# VAPIMWP_VIEW_GETASPECTRATIO

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

## Syntax

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

## Arguments

Argument | Description
--- | ---
`hWndVAPI` | The handle of the VAPI window.
`lpnAspectRatio` | A pointer to an integer that returns the aspect ratio: `0` - None `1` - Based on document `2` - Normal (use scanlines) `3` - Letter (times 2)

## Returns

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

## Discussion

Use this message to set the state of an Aspect Ratio menu item or toolbar button.

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Version 25.3 | Last updated July 2025

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Product: File Content Extraction 25.3

Topic Title: VAPIMWP_VIEW_GETASPECTRATIO