rem: const Char8 *suffixArray[], UInt16 suffixByteCount );
add: const Char8 *suffixArray[], UInt16 suffixByteCount, UInt32 flags );
context: OSG_BEGIN_NAMESPACE/*! \brief PNG File Handler. See \ref PageSystemImage for a detailed description.*/class OSG_SYSTEMLIB_DLLMAPPING PNGImageFileType : public ImageFileType{    /*==========================  PUBLIC  =================================*/  public:    /*---------------------------------------------------------------------*/    /*! \name                   Destructor                                 */    /*! \{                                                                 */    virtual ~PNGImageFileType (void);    /*! \}                                                                 */    /*---------------------------------------------------------------------*/    /*! \name                   Read/Write                                 */    /*! \{                                                                 */    virtual bool read  (ImagePtr &image, const Char8 *fileName);    virtual bool write (const ImagePtr &image, const Char8 *fileName);    /*! \}                                                                 */    /*---------------------------------------------------------------------*/    /*! \name                  Get Method                                  */    /*! \{                                                                 */    static PNGImageFileType & the (void);    /*! \}                                                                 */    /*=========================  PROTECTED  ===============================*/  protected:    /*---------------------------------------------------------------------*/    /*! \name               Default Constructor                            */    /*! \{                                                                 */    PNGImageFileType ( const Char8 *mimeType,                       const Char8 *suffixArray[], UInt16 suffixByteCount );    /*! \}                                                                 */    /*---------------------------------------------------------------------*/    /*! \name                Copy Constructor                              */    /*! \{                                                                 */    PNGImageFileType (const PNGImageFileType &obj);    typedef ImageFileType Inherited;    static PNGImageFileType _the;    /*! \}                                                                 */    /*---------------------------------------------------------------------*/    /*! \name               PNG LIB Helper                                 */    /*! \{                                                                 */    /*! \}                                                                 */};