C#实现winform自动关闭MessageBox对话框的方法

本文实例讲述了C#实现winform自动关闭MessageBox对话框的方法。分享给大家供大家参考。具体实现方法如下：

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using System.Runtime.InteropServices;

namespace WindowsApplication1

{

  public partial class AutoDeleteMessageBox : Form

  {

   [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 AutoDeleteMessageBox()

   {

    InitializeComponent();

   }

   private void button1_Click( object sender, EventArgs e)

   {

    StartKiller();

    MessageBox.Show( "3秒钟后自动关闭MessageBox窗口" , "MessageBox" );

   }

   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 , "MessageBox" );

    if (ptr != IntPtr.Zero)

    {

     //找到则关闭MessageBox窗口

     PostMessage(ptr, WM_CLOSE, IntPtr.Zero, IntPtr.Zero);

    }

   }

  }

}