/** @struct  oyConnectorImaging_s
 *  @ingroup objects_conversion
 *  @extends oyConnector_s
 *  @brief   Node connection descriptor
 *
 *  This structure holds informations about the connection capabilities.
 *  It holds common structure members of oyFilterPlug_s and oyFilterSocket_s.
 *
 *  To signal a value is not initialised or does not apply, set the according
 *  integer value to -1.
 *
 *  @todo generalise the connector properties
 *
 *  @version Oyranos: 0.1.10
 *  @since   2008/07/26 (Oyranos: 0.1.8)
 *  @date    2010/06/25
 */
