KeyView 23.4

# fpCanFilter()

Determines whether a file format is supported by KeyView.

For a list of supported formats, see Document Readers.

## Syntax

    KVErrorCode pascal fpCanFilter( KVDocument pDocument );

## Arguments

`pDocument` | A `KVDocument` that you created with fpOpenDocumentFromFile() or fpOpenDocumentFromStream().

## Returns

The return value is an error code.

- If the file format is supported, the return value is `KVError_Success`.
- If the file format is not supported, the return value is an error code that indicates the problem.

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Version 23.4 | Last updated September 2023

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Product: IDOL KeyView 23.4

Topic Title: fpCanFilter()