/// <summary>Paints the ROI into the supplied window</summary>
/// <param name="window">HALCON window</param>
public override void draw(hvppleDotNet.HWindow window, int imageWidth, int imageHeight)
{
window.DispCircle(midR, midC, radius);
double littleRecSize = getHandleWidth(imageWidth, imageHeight);
window.SetDraw("fill");
window.DispRectangle2(row1, col1, 0, littleRecSize, littleRecSize);
window.DispRectangle2(midR, midC, 0, littleRecSize, littleRecSize);
window.SetDraw("margin");
}