/*--------------------------------------------------------------------------*/
   typedef struct __SelVar {
                             pObjectDescriptor pDes;
                             pSicsSelector pSel;
                             pIDrivable pDrivInt;
                             pICallBack pCall;
                             float fValue;
                             char *name;
                             SConnection *pCon; /* for passing to callbacks */
                             } SelVar;
                             

