# GetAuxOutput()

This callback function enables the calling application to specify an auxiliary output stream for a block or graphic.

## Syntax

    BOOL (pascal *GetAuxOutput) (
        void                    *pCallingContext,
        KVHTMLAnchorTypeEx       eAnchorTypeEx,
        char                    *pszAnchor,
        KVOutputStream          *pNewOutput);

## Arguments

`pCallingContext` | A pointer passed back to the caller-provided callback functions. This pointer, which can be `NULL`, is specified as the second parameter of the call to `fpConvertStream()`.
`eAnchorTypeEx` | A graphic or block anchor as defined by the enumerated types in `KVHTMLAnchorTypeEx`.
`pszAnchor` | KeyView will have set this to the anchor associated with this stream. `pszAnchor` is based on the call to `GetAnchor()`.
`pNewOutput` | A pointer to a `KVOutputStream` structure that can be used to write data to the current block.

## Returns

- To continue the conversion, return `TRUE`.
- To terminate the conversion process without completing the conversion, return `FALSE`.

## Discussion

- If `GetAuxOutput()` is `NULL`, the `pszDefaultOutputDirectory` member of the instance of `KVHTMLOptionsEx` is used as the base storage location for auxiliary output files. If `pszDefaultOutputDirectory` is also `NULL`, auxiliary files are placed in the current working directory.

- This function must fill out the provided stream function by setting an appropriate function for each member. Memory allocated to the I/O structure must be tracked and freed within the call to `Close()`.

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