winfrom让弹出的MessageBox在指定时间内销毁

http://www.sina.com.cn 2008年07月07日 16:35  IT168.com

winfrom让弹出的MessageBox在指定时间内自动销毁,代码如下:

private void Button_Click(object sender, System.EventArgs e)
{
StartKiller();
MessageBox.Show("这里是MessageBox弹出的内容","MessageBox");
MessageBox.Show("这里是跟随运行的窗口","窗口");
}
private void StartKiller()
{
Timer timer = new Timer();
timer.Interval = 10000;//10秒启动
timer.Tick += new EventHandler(Timer_Tick);
timer.Start();
}
private void Timer_Tick(object sender, EventArgs e)
{
KillMessageBox();
//停止计时器
((Timer)sender).Stop();
}
private void KillMessageBox()
{
//查找MessageBox的弹出窗口,注意对应标题
IntPtr ptr = FindWindow(null,"MessageBox");
if(ptr != IntPtr.Zero)
{
//查找到窗口则关闭
PostMessage(ptr,WM_CLOSE,IntPtr.Zero,IntPtr.Zero);
}
}
[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;

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