您不太了解哪种气球和位置.
查看是否有这些帮助:
WPF NotifyIcon [气球注释 [如何在WPF应用程序中实现气球消息 [ ^ ]

You are not too elaborate on what kind of balloon and where.
See if these help:
WPF NotifyIcon[^]
Balloon Comments[^]

How to implement Balloon message in a WPF application[^]