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# KVHTMLCallbacksEx

This structure provides all callbacks that can result from a call to `fpConvertStream()` or `KVHTMLConvertFile()`. See fpConvertStream() and KVHTMLConvertFile(). Any and all of the function pointers can be `NULL`.

    typedef BOOL (pascal *KVHTMLCB_CONTINUE)(
        void                  *pcallingContext,
        int                   nPercentDone);
    typedef BOOL (pascal *KVHTMLCB_GETANCHOREX)(
        void                  *pCallingContext,
        KVHTMLAnchorTypeEx    eAnchorTypeEx,
        char                  *pszAnchor,
        int                   cbAnchorMax,
        BYTE                  *pcHTML,
        UINT                  cbHTML);
    typedef BOOL (pascal *KVHTMLCB_GETAUXOUTPUTEX) (
        void                  *pCallingContext,
        KVHTMLAnchorTypeEx    eAnchorTypeEx,
        char                  *pszAnchor,
        KVOutputStream        *pNewOutput);
    typedef BOOL (pascal *KVHTMLCB_USERCBEX) (
        void                  *pCallingContext,
        char                  *psUserCBid,
        KVOutputStream        *pOutput,
        void                  *pReserved);
    typedef struct tag_KVHTMLCallbacksEx
    {
        KVHTMLCB_CONTINUE            Continue;
        KVHTMLCB_GETANCHOREX         GetAnchor;
        KVHTMLCB_GETAUXOUTPUTEX      GetAuxOutput;
        KVHTMLCB_USERCBEX            UserCB;
    }
    KVHTMLCallbacksEx;

## Member Descriptions

- The members of this structure are pointers to the functions described in HTML Export API Callback Functions.

- 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. See KVHTMLOptionsEx.

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