请问高手，如何在VBA代码中最小化当前窗体

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请问高手，如何在VBA代码中最小化当前窗体？一般最小化是自己去点击，我希望用代码去实现。
下面这些代码只是能让窗体出现最小化、最大化按钮，但如何写代码执行某窗体最小化我却不知道
'这以下的代码放在窗体代码的顶部
'注意下面还有放在底部的代码
Option Explicit
Private Declare Function GetWindowLong Lib "user32" Alias "GetWindowLongA" (ByVal hWnd As Long, ByVal nIndex As Long) As Long
Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Private Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hWnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long
Private Const GWL_STYLE = (-16)
Private Const WS_THICKFRAME As Long = &H40000 '(恢复大小)
Private Const WS_MINIMIZEBOX As Long = &H20000 '(最小化)
Private Const WS_MAXIMIZEBOX As Long = &H10000 '(最大化)         
'这以上的代码放在窗体代码的顶部



'这以下的代码放在窗体代码的底部
'窗体UserForm的初始化
Private Sub UserForm_Initialize()
Dim hWndForm As Long
Dim IStyle As Long
hWndForm = FindWindow("ThunderDFrame", Me.Caption)
IStyle = GetWindowLong(hWndForm, GWL_STYLE)
IStyle = IStyle Or WS_THICKFRAME '还原
IStyle = IStyle Or WS_MINIMIZEBOX '最小化
IStyle = IStyle Or WS_MAXIMIZEBOX '最大化
SetWindowLong hWndForm, GWL_STYLE, IStyle
End Sub
'这以上的代码放在窗体代码的底部