User supplied callback function for handling backward conversion on user data attached to elements

    typedef GSErrCode  APIElemSetSaveOldFormatHandlerProc (
        API_FTypeID     planFileType,
        const GSPtr     dataPtr,
        GSPtr*          oldDataPtr
    );

 

Parameters

planFileType

[in] File type’s ID of the save process

dataPtr

[in] Pointer to the attached user data

oldDataPtr

[out] Pointer to the backward converted user data

 

Return Values

NoError

The function has completed with success.

For other common API errors see the API Errors document.

 

Remarks

oldDataPtr is nullptr on call, and should be allocated in the function. If it is nullptr on return, the used data will be deleted from the saved plan.

 

Requirements

Version: API 20 or later

Header: APIdefs_Callback.h

 

See Also

API_FTypeID,
API Functions