bluecommand.cs

VC#里面的东西,大家可以看看

using System;
using System.Windows.Forms;
using System.Drawing;
using System.Collections ;

namespace UndoCommand
{
	/// <summary>
	/// draws bluelines and caches list for undo
	/// </summary>
	public class BlueCommand :ColorCommand 	{
		public BlueCommand(PictureBox pict):base(pict) {
			color = Color.Blue ;
			x = pbox.Width ;
			dx = -20;
			y = 0;
			dy = 0;
		}
	}
}