为什么窗户没有关上窗户？

代码说明：

Why won t A Note close when Windows does? When Windows closes it sends a message to all programs that they should close. A Note receives this message and starts to upload the notes to the server. Sometimes the server has a lot of other traffic and therefore is a bit slow to respond to A Note. Therefore, Windows displays the dialog box A Note is not responding . Most of the time, the server will answer A Note, the program will close and so will Windows. If the A Note is not responding time-out message, you can press cancel now . The notes have already been uploaded and saved to disk.