这是一个调用系统中的一些功能对话框的程序，包括显示“打开方式”对话框、打印测试页、映射网络驱动器等等，共有超过20个不同的功能-This is a system called some of the functions of the dialog box procedure, including shows that the "open approach" dialog box, print a test page, map network drives, etc., a total of over 20 different functions