C#图像重新着色的方法

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using System.Drawing.Drawing2D;using System.Drawing.Imaging;namespace WindowsApplication2{  public partial class Form18 : Form  {    public Form18()    {      InitializeComponent();    }    private void panel1_Paint(object sender, PaintEventArgs e)    {      Graphics g = e.Graphics;      using (Bitmap bmp = new Bitmap(@"d:/我的文档/桌面/ico/Administrator.bmp"))      {        ColorMap[] colorMap = new ColorMap[1];        colorMap[0] = new ColorMap();        colorMap[0].OldColor = Color.Blue;        colorMap[0].NewColor = Color.White;        ImageAttributes attr = new ImageAttributes();        attr.SetRemapTable(colorMap);        Rectangle rect = new Rectangle(0, 0, bmp.Width, bmp.Height);        rect.Offset(0, 0);        g.DrawImage(bmp, rect, 0, 0, rect.Width, rect.Height, g.PageUnit, attr);      }    }  }}