775 typedef PNG_CALLBACK(void, *png_error_ptr, (png_structp, png_const_charp));  typedef
776 typedef PNG_CALLBACK(void, *png_rw_ptr, (png_structp, png_bytep, size_t));  typedef
777 typedef PNG_CALLBACK(void, *png_flush_ptr, (png_structp));  typedef
778 typedef PNG_CALLBACK(void, *png_read_status_ptr, (png_structp, png_uint_32,  typedef
780 typedef PNG_CALLBACK(void, *png_write_status_ptr, (png_structp, png_uint_32,  typedef
784 typedef PNG_CALLBACK(void, *png_progressive_info_ptr, (png_structp, png_infop));  typedef
785 typedef PNG_CALLBACK(void, *png_progressive_end_ptr, (png_structp, png_infop));  typedef
797 typedef PNG_CALLBACK(void, *png_progressive_row_ptr, (png_structp, png_bytep,  typedef
803 typedef PNG_CALLBACK(void, *png_user_transform_ptr, (png_structp, png_row_infop,  typedef
808 typedef PNG_CALLBACK(int, *png_user_chunk_ptr, (png_structp,  typedef
867 typedef PNG_CALLBACK(png_voidp, *png_malloc_ptr, (png_structp,  typedef
869 typedef PNG_CALLBACK(void, *png_free_ptr, (png_structp, png_voidp));  typedef