C# Code:


/// <summary>
/// 图像处理辅助类
/// </summary>
public class ImageHelper
{
   /// <summary>
   /// 获取均分图片中的某一个
   /// </summary>
   public static Image GetImageByAverageIndex(Image orignal, int count, int index)
   {
      int width = orignal.Width / count;
      return CutImage(orignal, width * (index - 1), width, orignal.Height);
   }
   
   /// <summary>
   /// 获取图片一部分
   /// </summary>
   private static Image CutImage(Image orignal, int start, int width, int height)
   {
      Bitmap partImage = new Bitmap(width, height);
      Graphics g = Graphics.FromImage(partImage);//获取画板
      Rectangle srcRect = new Rectangle(start, 0, width, height);//源位置开始
      Rectangle destRect = new Rectangle(0, 0, width, height);//目标位置
      //复制图片
      g.DrawImage(orignal, destRect, srcRect, GraphicsUnit.Pixel);
      partImage.MakeTransparent(Color.FromArgb(255, 0, 255));
      g.Dispose();
      return partImage;
   }
}

//来源:C/S框架网(www.csframework.com) QQ:1980854898

C# Code:

public partial class frmCutImage : Form
{
   const int ICO_COUNT = 14;//小图片数量
   
   public frmCutImage()
   {
      InitializeComponent();
   }
   
   private void btnCutImage_Click(object sender, EventArgs e)
   {
      //按图片所在位置截取图片
      Image img = ImageHelper.GetImageByAverageIndex(pictureBox1.Image, ICO_COUNT, int.Parse(textBox1.Text));
      pictureBox2.Image = img;
   }
   
   private void btnLoadToolbar_Click(object sender, EventArgs e)
   {
      Image img;
      
      //生成14个按钮图片
      for (int i = 1; i <= ICO_COUNT; i )
      {
         img = ImageHelper.GetImageByAverageIndex(pictureBox1.Image, ICO_COUNT, i);
         this.toolStrip1.Items.Add(img);
      }
   }
}

//来源:C/S框架网(www.csframework.com) QQ:1980854898