Define a border for your TMemo field

Problem/Question/Abstract:

Define a border for your TMemo field

Answer:

The following snippet defines a left border of a width of 20 pixels:

var
  Rect: TRect;
begin
  SendMessage(Memo1.Handle, EM_GETRECT, 0, LongInt(@Rect));
  Rect.Left := 20;
  SendMessage(Memo1.Handle, EM_SETRECT, 0, LongInt(@Rect));
  Memo1.Refresh;
end;