Custom categories must handle common characteristics of a category, such as managing a list of contained children, label, icon name, and so forth.
自定义类别必须处理一个类别的共有特性，例如管理一组子类、标签、图标名称等。
When Alice raises her hand, the hand icon on Bob's window blinks and Bob can take the necessary steps to handle it.
当alice举起手后，Bob的窗口上的Hand图标将闪烁，那么Bob就会采取必要的措施来处理它。
Handle to the window that will receive notification messages associated with an icon in the taskbar status area.
用来接受任务状态栏所发出的消息的窗口的句柄。
应用推荐