using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Windows.Forms;

namespace HIDTOOL
{
    class IniFileOperate
    {
        /*
         * 文件结构：
            [Section1]
            key  1   =  val1
            key  2   =  val2
            ……
            [Section2]
            key  1   =  val1
            key  2   =  val2
            ……      
         */
        /// <summary>
        /// 写入INI文件
        /// </summary>
        /// <param name="section">节点名称[如[TypeName]]</param>
        /// <param name="key">键</param>
        /// <param name="val">值</param>
        /// <param name="filepath">文件路径</param>
        /// <returns></returns>
        [DllImport("kernel32")]
        private static extern long WritePrivateProfileString(string section, string key, string val, string filepath);

        /// <summary>
        /// 读取INI文件
        /// </summary>
        /// <param name="section">节点名称</param>
        /// <param name="key">键</param>
        /// <param name="def">值</param>
        /// <param name="retval">stringbulider对象</param>
        /// <param name="size">字节大小</param>
        /// <param name="filePath">文件路径</param>
        /// <returns></returns>
        [DllImport("kernel32")]
        private static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retval, int size, string filePath);


        [DllImport( " kernel32 " )] 
        private static extern int GetPrivateProfileString( string  section,  string  key,  string  defVal, Byte[] retVal,  int  size,  string  filePath);
//========================================================================================================================================================

        string iniFilePath = "";
        public IniFileOperate(string iniFileName)      //构造方法
        {
            this.iniFilePath = Application.StartupPath + @"\" + iniFileName;
        }

        /// <summary> 
        /// 验证文件是否存在 
        /// </summary> 
        /// <returns>布尔值</returns> 
        public bool ExistINIFile()
        {
            return File.Exists(this.iniFilePath);
        } 
        /// <summary>
        /// 写入
        /// </summary>
        /// <param name="section"></param>
        /// <param name="key"></param>
        /// <param name="iValue"></param>
        public void Write(string section, string key, string iValue)
        {
            WritePrivateProfileString(section, key, iValue, this.iniFilePath);
        }


        /// <summary>
        /// 读取INI文件中的内容方法
        /// </summary>
        /// <param name="Section">键</param>
        /// <param name="key">值</param>
        /// <returns></returns>
        public string Read(string Section, string key)
        {
            StringBuilder temp = new StringBuilder(1024);
            GetPrivateProfileString(Section, key, "", temp, 1024, this.iniFilePath);
            return temp.ToString();
        }
    
    
        public byte[] ReadBytes(string section, string key)
        {
            byte[] temp = new byte[255];
            int i = GetPrivateProfileString(section, key, "", temp, 255, this.iniFilePath);
            return temp;
        }

        public void DelIniFile()
        {
            File.Delete(this.iniFilePath);
        }
 
    }
}