private void DrawBox_MouseDown(object sender, MouseEventArgs e) { if (e.Button == MouseButtons.Left) { Drawing = true; Point startMousePos = new Point(e.X, e.Y); Line = new DrawLine(pen.Color, startMousePos, startMousePos, pen.Width); ShapePoints.Add(Line); } else if (e.Button == MouseButtons.Right) { GetColor.ShowDialog(); pen.Color = GetColor.Color; } }