How to cast a Interface to a Object in Delphi

Question

In delphi 2009 I have a reference to a IInterface which I want to cast to the underlying TObject

Using TObject(IInterface) obv

Answer 1

var
  N, F: NativeInt; // NativeInt is Integer(in delphi 32bit ) 
  S: TObject;
begin
  N := NativeInt(Args[0].AsInterface) - 12; 
  {subtract 12 byte to get object address(in x86 ,1 interface on class) }
  S := TObject(N);    
  writeln(S.ToString);

end;