C#倒计时关闭对话框

C#倒计时关闭对话框VS2008源代码！Messagebox 自定义倒计时关闭！3秒钟后关闭...2秒钟后关闭...1秒钟后关闭... private void StartKiller() { Timer timer = new Timer(); timer.Interval = 3000; //3秒启动 timer.Tick += new EventHandler(timer1_Tick); timer.Start(); } 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); } }