winCE/Windows 应用程序消息提示框自动消失功能

近期在做winCE系统的扫描枪应用程序，遇到了一些问题，其中包括消失提示框在手持终端显示过小，

用户要求提示框提示几秒后自动关闭，Windows平台可以通过调用系统API以定时器的方式进行自动销毁。

不过在winCE上存在不同，由于winCE系统属于精简版的windows系统，所以在API上也是属于精简后的，

Windows平台销毁消息框用user32.dll中的FindWindow和PostMessage完成，而winCE平台并没有

user32.dll，不过对应的API在coredll.dll中。

windows平台示例代码：

         [DllImport("user32.dll", EntryPoint = "FindWindow", CharSet = CharSet.Auto)]
         internal static extern IntPtr FindWindow(string className,string windowName);

         [DllImport("user32.dll", EntryPoint = "PostMessage", CharSet = CharSet.Auto)]
         internal static extern int PostMessage(IntPtr hWnd,int msg,IntPtr wParam,IntPtr lParam);

         internal const int WM_CLOSE = 0x10;
         Timer timer = new Timer();

         private void btnAutoCloseMesaage_Click(object sender, EventArgs e)
         {
             runKillTimer();
             MessageBox.Show("操作已完成，可以关闭！","Message");
         }

         /// <summary>
         /// 运行timer
         /// </summary>
         internal void runKillTimer()
         {
             timer.Interval = ;
             timer.Tick+=timer_Tick;
             timer.Start();
         }

         /// <summary>
         /// timer触发关闭消息框
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void timer_Tick(object sender, EventArgs e)
         {
             KillMessageBox();
             timer.Stop();
         }

         /// <summary>
         /// 调用API查找窗体并关闭
         /// </summary>
         internal void KillMessageBox()
         {
             IntPtr msgPtr = FindWindow(null, "Message");
             if (msgPtr != IntPtr.Zero)
             {
                 PostMessage(msgPtr, WM_CLOSE, IntPtr.Zero, IntPtr.Zero);
             }
         }

winCE平台示例代码:

 [DllImport("coredll.dll", EntryPoint = "FindWindow", CharSet = CharSet.Auto)]
         internal static extern IntPtr FindWindow(string className,string windowName);

         [DllImport("coredll.dll", EntryPoint = "PostMessage", CharSet = CharSet.Auto)]
         internal static extern int PostMessage(IntPtr hWnd,int msg,IntPtr wParam,IntPtr lParam);

         internal const int WM_CLOSE = 0x10;
         Timer timer = new Timer();

         private void btnAutoCloseMesaage_Click(object sender, EventArgs e)
         {
             runKillTimer();
             MessageBox.Show("操作已完成，可以关闭！","Message");
         }

         /// <summary>
         /// 运行timer
         /// </summary>
         internal void runKillTimer()
         {
             timer.Interval = ;
             timer.Tick+=new EventHandler(timer_Tick);
             timer.Enabled = true;
         }

         /// <summary>
         /// timer触发关闭消息框
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void timer_Tick(object sender, EventArgs e)
         {
             KillMessageBox();
             timer.Enabled = false;
         }

         /// <summary>
         /// 调用API查找窗体并关闭
         /// </summary>
         internal void KillMessageBox()
         {
             IntPtr msgPtr = FindWindow(null, "Message");
             if (msgPtr != IntPtr.Zero)
             {
                 PostMessage(msgPtr, WM_CLOSE, IntPtr.Zero, IntPtr.Zero);
             }
         }

ps:大家有其他好的意见或建议也可以多多交流。