kernel32
kernel32.dll是Windows 9x/Me中非常重要的32位动态链接库文件，属于内核级文件。它控制着系统的内存管理、数据的输入输出操作和中断处理，当Windows启动时，kernel32.dll就驻留在内存中特定的写保护区域，使别的程序无法占用这个内存区域。 以上来自百度百科
1 | [DllImport("kernel32")] //读取INI文件public static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath);[DllImport("kernel32")]//向INI文件中写入数据public static extern long WritePrivateProfileString(string mpAppName,string mpKeyName,string mpDefault,string mpFileName); |
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Demo案例
实现功能
调用Kernel32函数实现ini文件的读取和写入。
注意ini的编码格式为ANSI。在实际软件编写时，发现无法保存为ANSI，网上了解后发现是ASCI包含中文字符，所有ini需要有中文字符。如果全是英文的话，则无法保存为ASCI，即使保存为ASCI，再次打开后也会变成其他编码格式。
程序代码
2 | using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Runtime.InteropServices;using System.Text;using System.Threading.Tasks;using System.Windows.Forms; namespace INIOpera{ public partial class Form1 : Form { public Form1() { InitializeComponent(); } #region 定义公共变量 public static string strNode = "INFO"; public static string strPath = Application.StartupPath "\INFO.ini"; #endregion //引入kernel32函数 [DllImport("kernel32")] //读取INI文件 public static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath); [DllImport("kernel32")]//向INI文件中写入数据 public static extern long WritePrivateProfileString(string mpAppName, string mpKeyName, string mpDefault, string mpFileName); /// <summary> /// 读取INI文件 /// </summary> /// <param name="section">欲在其中查找条目的小节名称。这个字串不区分大小写。</param> /// <param name="key">欲获取的项名或条目名。这个字串不区分大小写。</param> /// <param name="def">指定的条目没有找到时返回的默认值。可设为空（""）</param> /// <param name="filePath">完整的INI文件名</param> /// <returns></returns> public static string GetINIFileString(string section,string key, string def, string filePath) { StringBuilder strTemp = new StringBuilder(1024); GetPrivateProfileString(section, key, def, strTemp, 1024, filePath); return strTemp.ToString(); } private void button1_Click(object sender, EventArgs e) { textBox1.Text = GetINIFileString(strNode, "Name","", strPath); } private void button2_Click(object sender, EventArgs e) { textBox2.Text = GetINIFileString(strNode, "Location", "", strPath); } private void button3_Click(object sender, EventArgs e) { textBox3.Text = GetINIFileString(strNode, "IP", "", strPath); } private void button4_Click(object sender, EventArgs e) { textBox4.Text = GetINIFileString(strNode, "ComputerName", "", strPath); } private void button5_Click(object sender, EventArgs e) { textBox5.Text = GetINIFileString(strNode, "WorkAblity", "", strPath); } private void textBox1_TextChanged(object sender, EventArgs e) { } private void textBox2_TextChanged(object sender, EventArgs e) { } private void button6_Click(object sender, EventArgs e) { WritePrivateProfileString(strNode, "Name", textBox10.Text,strPath); } private void button7_Click(object sender, EventArgs e) { WritePrivateProfileString(strNode, "Location", textBox9.Text, strPath); } private void button8_Click(object sender, EventArgs e) { WritePrivateProfileString(strNode, "IP", textBox8.Text, strPath); } private void button9_Click(object sender, EventArgs e) { WritePrivateProfileString(strNode, "ComputerName", textBox7.Text, strPath); } private void button10_Click(object sender, EventArgs e) { WritePrivateProfileString(strNode, "WorkAblity", textBox6.Text, strPath); } }} |
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