[V8i MDL] mdlKISolid_closestPointOnBody

Hello,

I want to get the smalest distance from a Point to a SmartSolidElement.

In the API is the function 

int       mdlKISolid_closestPointOnBody  
( 
DPoint3d*       pointOutP , 
KIENTITY**       entityOutPP , 
double*       distanceP , 
KIBODY*       bodyP , 
Transform*       transP , 
DPoint3d*       pointP , 
DgnModelRefP       modelRef  
); 

How can I move the pointP from real coordinates to solid coordinates?

If the function returns SUCCESS, how can i transform the distanceP from solid coordinates to real coordinates?

Martin