因为 NotifyIcon 控件只能使用鼠标右键才能显示菜单,那如何让其支持鼠标左键显示菜单呢???
Private Sub NotifyIcon1_MouseClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles NotifyIcon1.MouseClick
    Select Case e.Button
        Case Windows.Forms.MouseButtons.Left
            ' 这个方法不能很好解决内容菜单位置问题
            ' 并且对菜单外的鼠标操作没有取消菜单反应
            'ContextMenuStrip1.Show(Cursor.Position)
            
            ' 利用反射动态调用内容菜单的内部方法,完美解决所有问题
            Static mi As Reflection.MethodInfo = GetType(NotifyIcon).GetMethod("ShowContextMenu", Reflection.BindingFlags.NonPublic Or Reflection.BindingFlags.Instance)
            mi.Invoke(NotifyIcon1, Nothing)
            
        Case Windows.Forms.MouseButtons.Right
            Return
        Case Windows.Forms.MouseButtons.Middle
        
    End Select
End Sub