// cleanup
  ImageEnVect1.LayersClear();

  // add new layer loading from file (layer 1)
  ImageEnVect1.LayersAdd('hongkong.jpg');

  // adjust layer 0 size to match loaded image and make it transparent
  ImageEnVect1.Layers[0].Bitmap.Allocate(ImageEnVect1.Layers[1].Width, ImageEnVect1.Layers[1].Height);
  ImageEnVect1.Layers[0].Bitmap.AlphaChannel.Fill(0);

  // draw some vectorial boxes
  for i := 1 to 4 do
    with ImageEnVect1, ImageEnVect1.IEBitmap do
    begin
      ObjLayer[-1] := 1;
      AddNewObject(iekBOX, Rect(random(Width), random(Height), random(Width), random(Height)), clRed);
    end;

  ImageEnVect1.CurrentLayer.Rotate := ImageEnVect1.CurrentLayer.Rotate + 45;
  ImageEnVect1.Update();