ini파일 다루기

출처: http://terrorjang.tistory.com/21

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Runtime.InteropServices;   //class 추가
 
namespace Login
{
    public partial class LoginForm : Form
    {
        public LoginForm()
        {
            InitializeComponent();
        }
 
        [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);
         
 
        private void btnLogin_Click(object sender, EventArgs e)
        {
            //..ini 쓰기
            WritePrivateProfileString("LOGIN", "ID", "test", "C:\\login.ini");
            WritePrivateProfileString("LOGIN", "PW", "1234", "C:\\login.ini");
 
            StringBuilder retId = new StringBuilder();
            StringBuilder retPw = new StringBuilder();
 
            //..ini 읽기
            GetPrivateProfileString("LOGIN", "ID", "(NONE)", retId, 32, "C:\\login.ini");
            GetPrivateProfileString("LOGIN", "PW", "(NONE)", retPw, 32, "C:\\login.ini");
 
            MessageBox.Show("ID :"+ retId.ToString()+",PW: "+ retPw.ToString());
 
        }
    }
}