窗体加载了这个事件不知道行不行

在窗体加载了这个事件
private Sub Form_Load()
Me!Box46.Visible = False
End Sub
先是把这个Box46最小化,但又想当鼠标移动到它时又想它显示出来:
Private Sub Box46_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
Me!Box46.Visible = True
End Sub
但不能实现,要怎么才行