pub unsafe extern "C" fn cpdbGetDefaultPrinterForBackend(
frontend: *mut cpdb_frontend_obj_t,
backend: *const c_char,
) -> *mut cpdb_printer_obj_tpub unsafe extern "C" fn cpdbGetDefaultPrinterForBackend(
frontend: *mut cpdb_frontend_obj_t,
backend: *const c_char,
) -> *mut cpdb_printer_obj_t