text: #include "oyConnector_s.h"
  #include "oyFilterNode_s.h"
  #include "oyFilterSocket_s.h"
  #include "oyPixelAccess_s.h"
  #include "oyImage_s.h"
  OYAPI int  OYEXPORT
                   oyFilterPlug_Callback(
                                         oyFilterPlug_s    * c,
                                         oyCONNECTOR_EVENT_e e );
  OYAPI int  OYEXPORT
                   oyFilterPlug_ConnectIntoSocket (
                                         oyFilterPlug_s   ** p,
                                         oyFilterSocket_s ** s );
  OYAPI oyImage_s * OYEXPORT
               oyFilterPlug_ResolveImage(oyFilterPlug_s    * plug,
                                         oyFilterSocket_s  * socket,
                                         oyPixelAccess_s   * ticket );
  OYAPI oyFilterNode_s * OYEXPORT
               oyFilterPlug_GetNode    ( oyFilterPlug_s    * p );
  OYAPI oyFilterNode_s * OYEXPORT
               oyFilterPlug_GetRemoteNode
                                       ( oyFilterPlug_s    * p );
  OYAPI oyFilterSocket_s * OYEXPORT
               oyFilterPlug_GetSocket  ( oyFilterPlug_s    * p );
  OYAPI oyConnector_s * OYEXPORT
               oyFilterPlug_GetPattern ( oyFilterPlug_s    * p );
  OYAPI const char * OYEXPORT
               oyFilterPlug_GetRelatives(oyFilterPlug_s    * p );
  