WAKEUP使用称为「Date-Time Picker」的通用控件。这个控件用来让使用者选择指定的日期和时间（WAKEUP只使用时间挑选功能）。程序可以使用SYSTEMTIME结构来获得和设定时间，在获得和设定PC自身时钟时也使用该结构。-WAKEUP uses a common control called the Date-Time Picker. This control takes care of logic to allow the user to select a particular date and time. (WAKEUP uses only the time feature.) A program can get and set this time using the SYSTEMTIME structure used in obtaining and setting the PC s own clock.