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);
   }
  }
 }
}