Property Top As Double

Dim instance As IWindow
Dim value As Double
 
instance.Top = value
 
value = instance.Top

double Top {get; set;}

read-write property Top: Double; 

function get,set Top : double

__property double get_Top();
__property void set_Top( 
   double value
);

property double Top {
   double get();
   void set (    double value);
}