图片取色小程序

应一位网友之邀破解某网站验证码，于是写个小测试程序热热手。 本小程序功能：在图片上取某一点的颜色 主要代码如下：

using  System; using  System.Diagnostics; using  System.Collections.Generic; using  System.ComponentModel; using  System.Data; using  System.Drawing; using  System.Text; using  System.Windows.Forms; using  bitmapTest.Properties; namespace  bitmapTest {      public   partial   class  Form1 : Form     {          public  Form1()         {             InitializeComponent();         }         Bitmap myBitmap;          int  cmd  =   0 ;          private   void  Form1_Load( object  sender, EventArgs e)         {             pictureBox1.Image  =  Resources.bfq0002;             myBitmap  =  (Bitmap)pictureBox1.Image;         }          ///   <summary>          ///  鼠标取色（移动）          ///   </summary>          private   void  pictureBox1_MouseMove( object  sender, MouseEventArgs e)         {              int  mouseX  =  e.X;              int  mouseY  =  e.Y;             txtPoint.Text  =   " ( "   +  mouseX  +   " , "   +  mouseY  +   " ) " ;              if  (rbtmutil.Checked)             {                  // 取色                  try                 {                     Color pixelColor  =  myBitmap.GetPixel(mouseX, mouseY);                     colorbox.BackColor  =  pixelColor;                     txtColorValue.Text  =  System.Drawing.ColorTranslator.ToHtml(pixelColor);                 }                  catch                 { }             }              // 命令              switch  (cmd)             {                  case   1 :   // 画线                     SolidBrush pixelBrush  =   new  SolidBrush(Color.Red);                     Graphics g  =  Graphics.FromImage(myBitmap);                     g.FillRectangle(pixelBrush, mouseX, mouseY,  2 ,  2 );                     pictureBox1.Image  =  myBitmap;                      break ;                  case   2 :                      break ;                  default :                      break ;             }         }          ///   <summary>          ///  画笔          ///   </summary>          private   void  btnpen1_Click( object  sender, EventArgs e)         {              if  (cmd  ==   1 )             {                 cmd  =   0 ;                 btnpen1.Image  =  Resources.png_05252;                  this .toolTip1.SetToolTip( this .btnpen1,  " 单击使用画笔 " );             }              else             {                 cmd  =   1 ;                 btnpen1.Image  =  Resources.png_05253;                  this .toolTip1.SetToolTip( this .btnpen1,  " 单击禁用画笔 " );             }         }          ///   <summary>          ///  恢复          ///   </summary>          private   void  button1_Click( object  sender, EventArgs e)         {             pictureBox1.Image  =  Resources.bfq0002;             myBitmap  =  (Bitmap)pictureBox1.Image;         }          ///   <summary>          ///  鼠标取色（单击）          ///   </summary>          private   void  pictureBox1_MouseDown( object  sender, MouseEventArgs e)         {              // 取色              try             {                 Color pixelColor  =  myBitmap.GetPixel(e.X, e.Y);                 colorbox.BackColor  =  pixelColor;                 txtColorValue.Text  =  System.Drawing.ColorTranslator.ToHtml(pixelColor);             }              catch             { }         }     } } 程序界面如下： 演示版下载： Demo         程序源码： Code

转载于:https://www.cnblogs.com/tuyile006/archive/2008/03/07/1094359.html