C#定时自动关闭MessageBox窗口

代码如下,可直接拿走用

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 WindowsFormsApp9
{undefined
    public partial class Form1 : Form
    {undefined

        [System.Runtime.InteropServices.DllImport("user32.dll", EntryPoint = "FindWindow", CharSet = CharSet.Auto)]
        private extern static IntPtr FindWindow(string lpClassName, string lpWindowName);
        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern int PostMessage(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);
        public const int WM_CLOSE = 0x10;

        public Form1()
        {undefined
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            StartKiller();
            MessageBox.Show("3秒钟后自动关闭MessageBox窗口", "温馨提示:");
        }
        private void StartKiller()
        {
            Timer timer = new Timer();
            timer.Interval = 3000; //3秒启动 
            timer.Tick += new EventHandler(Timer_Tick);
            timer.Start();
        }
        private void Timer_Tick(object sender, EventArgs e)
        {
            KillMessageBox();
            //停止Timer 
            ((Timer)sender).Stop();
        }
        private void KillMessageBox()
        {
            //按照MessageBox的标题，找到MessageBox的窗口 
            IntPtr ptr = FindWindow(null, "温馨提示:");
            if (ptr != IntPtr.Zero)
            {
                //找到则关闭MessageBox窗口 
                PostMessage(ptr, WM_CLOSE, IntPtr.Zero, IntPtr.Zero);
            }
        }
        
    }
}

点击button1按钮,弹框3秒钟自动消失!

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版权声明：本文为CSDN博主「夏日犹可待」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/jcy_15090250860/article/details/84927919