| PARAM_DIR_IN enum value (defined in ParameterDirection) | ParameterDirection | |
| PARAM_DIR_INOUT enum value (defined in ParameterDirection) | ParameterDirection | |
| PARAM_DIR_OUT enum value (defined in ParameterDirection) | ParameterDirection | |
| PARAM_DIR_RET enum value (defined in ParameterDirection) | ParameterDirection |