public void Generate() { CaptchaModel model = Captcha.Generate(); CorrectX = model.X; //pb2.Size = new Size(model.Slide.Width, model.Slide.Height); //pb1.Size = new Size(model.Background.Width, model.Background.Height); pb2.Image = model.Slide; pb1.Image = model.Background; Bitmap bitmap = (Bitmap)model.Background; Color color = bitmap.GetPixel(bitmap.Width - lblRefresh.Width, lblRefresh.Height); lblRefresh.ForeColor = Captcha.AntiColor(color); }