Color DrawPenColor

Hi,

I am developing an application where an image is loaded into the TLeadImage component.
By pressing a button a certain zone of the image must be emphasized so I want to draw a rectangle around that zone.
I have a little problem with drawing the rectangle: I want the edges of the rectangle to appear in red (by changing the DrawPenColor property), but when I start my application it always shows the edges in black or white. I have tried to change the Drawmode to all other existing properties but I can't get it to work properly. According to the chosen property for Drawmode, the color of the edges always appears in white or black. As a programming language I use Delphi and for colors you can also use constants. So I have also tried to set the DrawPenColor with the color-constant for red:
  Lead1.DrawPenColor := clRed
but this doesn't change anything.

I have written the following code:

  Lead1.DrawPenStyle := psSolid;
  Lead1.DrawPenWidth := 2;
  Lead1.DrawPenColor := RGB(255,0,0);
  Lead1.DrawMode := pmNot;
  Lead1.DrawFillStyle := bsClear;
  Lead1.DrawPersistence := True;
  Lead1.DrawRectangle(157, 98, 541, 54);

Can someone help me?

Maybe it is a bug? The version I use is 14.5