C# 局部放大图片

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Linq;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;

namespace ImageBlowUp
{
    public partial class Frm_Main : Form
    {
        Cursor myCursor = new Cursor（@“C:\WINDOWS\Cursors\cross_r.cur“）; //自定义鼠标 
        Image myImage; 
        public Frm_Main（）
        {
            InitializeComponent（）;
        }

        private void button1_Click（object sender EventArgs e）
        {
            //设置文件的类型
            openFileDialog1.Filter = “*.jpg*.jpeg*.bmp*.gif*.ico*.png*.tif*.wmf|*.jpg;*.jpeg;*.bmp;*.gif;*.ico;*.png;*.tif;*.wmf“;
            openFileDialog1.ShowDia

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2011-12-22 23:11  ImageBlowUp\
     文件         923  2013-05-22 22:38  ImageBlowUp.sln
     文件       20480  2010-11-04 01:50  ImageBlowUp.suo
     目录           0  2011-12-22 23:11  ImageBlowUp\bin\
     目录           0  2013-05-22 22:39  ImageBlowUp\bin\Debug\
     文件       10240  2013-05-22 22:39  ImageBlowUp\bin\Debug\ImageBlowUp.exe
     文件       24064  2013-05-22 22:39  ImageBlowUp\bin\Debug\ImageBlowUp.pdb
     文件        2083  2010-07-13 02:46  ImageBlowUp\Frm_Main.cs
     文件        3845  2010-07-08 22:03  ImageBlowUp\Frm_Main.designer.cs
     文件        6017  2010-07-08 22:03  ImageBlowUp\Frm_Main.resx
     文件        4026  2013-05-22 22:38  ImageBlowUp\ImageBlowUp.csproj
     目录           0  2011-12-22 23:11  ImageBlowUp\obj\
     目录           0  2013-05-22 22:39  ImageBlowUp\obj\Debug\
     文件        7158  2013-05-22 22:38  ImageBlowUp\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache
     文件        3747  2013-05-22 22:39  ImageBlowUp\obj\Debug\ImageBlowUp.csproj.FileListAbsolute.txt
     文件         850  2013-05-22 22:39  ImageBlowUp\obj\Debug\ImageBlowUp.csproj.GenerateResource.Cache
     文件        1757  2013-05-22 22:39  ImageBlowUp\obj\Debug\ImageBlowUp.csprojResolveAssemblyReference.cache
     文件       10240  2013-05-22 22:39  ImageBlowUp\obj\Debug\ImageBlowUp.exe
     文件         180  2013-05-22 22:39  ImageBlowUp\obj\Debug\ImageBlowUp.Frm_Main.resources
     文件       24064  2013-05-22 22:39  ImageBlowUp\obj\Debug\ImageBlowUp.pdb
     文件         180  2013-05-22 22:39  ImageBlowUp\obj\Debug\ImageBlowUp.Properties.Resources.resources
     目录           0  2011-12-22 23:11  ImageBlowUp\obj\Debug\Refactor\
     目录           0  2013-05-22 22:38  ImageBlowUp\obj\Debug\TempPE\
     文件        4608  2013-05-22 22:38  ImageBlowUp\obj\Debug\TempPE\Properties.Resources.Designer.cs.dll
     文件         495  2010-07-08 22:03  ImageBlowUp\Program.cs
     目录           0  2011-12-22 23:11  ImageBlowUp\Properties\
     文件        1354  2010-07-08 22:02  ImageBlowUp\Properties\AssemblyInfo.cs
     文件        2862  2013-05-22 22:38  ImageBlowUp\Properties\Resources.Designer.cs
     文件        5612  2010-07-08 22:02  ImageBlowUp\Properties\Resources.resx
     文件        1111  2013-05-22 22:38  ImageBlowUp\Properties\Settings.Designer.cs
     文件         249  2010-07-08 22:02  ImageBlowUp\Properties\Settings.settings
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