//IniFiles.cs
using System;
using System.Runtime.InteropServices;
using System.Text;

namespace AutoUpdate
{
    /// <summary>
    /// IniFiles 的摘要说明。
    /// </summary>
    public class IniFiles
    {
        public string path; 
        [DllImport("kernel32")] 
        private static extern long WritePrivateProfileString(string section, string key,string val,string filePath); 
        [DllImport("kernel32")] 
        private static extern int GetPrivateProfileString(string section, string key,string def, StringBuilder retVal, 
int size,string filePath);
        public IniFiles(string INIPath)
        {
            this.path = INIPath;
        }
        /// <summary>
        /// Write data file to the INI file.
        /// </summary>
        /// <param name="Section"></param>
        /// <param name="Key"></param>
        /// <param name="value"></param>
        public void IniWritevalue(string Section,string Key,string value) 
        { 
            WritePrivateProfileString(Section,Key,value,this.path); 
        } 
        /// <summary>
        /// Read data value from the INI file.
        /// </summary>
        /// <param name="Section"></param>
        /// <param name="Key"></param>
        /// <returns></returns>
        public string IniReadvalue(string Section,string Key) 
        { 
            StringBuilder temp = new StringBuilder(255); //51(aspx)
 
            int i = GetPrivateProfileString(Section,Key,"",temp, 255, this.path); 
            return temp.ToString(); 
        } 

    }
}

 [DllImport("kernel32")]//加载dll
        private static extern int GetPrivateProfileString(string section,
           string key, string def, StringBuilder retVal,
           int size, string filePath); //StringBuilder 可以返回值？想 Delphi var？
//自己封装一下
        private static string ReadINIfile(string iniFileName, string sectionName, string keyName, string pDefault)
        {
            StringBuilder keyValue = new StringBuilder(255);
            int i = GetPrivateProfileString(sectionName, keyName, pDefault, keyValue, 255, iniFileName);
            return (keyValue.ToString().Trim());
        }

 // intfile为ini路径
               m_Path = ReadINIfile(intfile, "driverpath", "path", "");
                if (m_Path == "")
                {
                    Verbose("ERROR: Invalid Path.");
                    return false;
                }