| #### Data Types and Structures dce_db_handle_t An opaque handle to a backing store. Use dce_db_open( ) acquire the handle. dce_db_header_t The data structure that defines a standard backing store header for data items. Use dce_db_header_fetch( ) to retrieve it from a backing store and dce_db_std_header_init( ) to initialize it. dce_db_convert_func_t An opaque pointer to the data conversion function to be used when storing or retrieving data. This function is specified as an argument to dce_db_open( ) at open time. It converts between native format and on-disk (serialized) format. It is generated from the IDL file by the IDL compiler. ###