freepascal.compiler/docs/objectex/ex11.pp

Program ex11;

{ Program to demonstrate the TStream.GetPos function }

Uses objects;

Var L : String;
    S : PStream;
    
begin
  L:='Some kind of string';
  S:=New(PMemoryStream,Init(100,10));
  Writeln ('Stream position before write: ',S^.GetPos);
  S^.WriteStr(@L);
  Writeln ('Stream position after write : ',S^.GetPos);
  Dispose(S,Done);
end.