public extern static dReal dJointGetAMotorParam( dJointID joint, dJointParams parameter );
public extern static void dJointSetAMotorParam( dJointID joint, dJointParams parameter, dReal value );
public extern static void dJointSetUniversalParam( dJointID joint, dJointParams parameter, dReal value );
public extern static dReal dJointGetUniversalParam( dJointID joint, dJointParams parameter );
public extern static dReal dJointGetHinge2Param( dJointID joint, dJointParams parameter );