كيفية تكبير و تصغير اليوزرفورم Minimize & maximize في الاكسيل VBA

كود تكبير و تصغير اليوزرفورم
Private Declare PtrSafe Function FindWindow Lib "User32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Private Declare PtrSafe Function GetWindowLong Lib "User32" Alias "GetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long) As Long
Private Declare PtrSafe Function SetWindowLong Lib "User32" Alias "SetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long
Private Const GWL_STYLE As Long = (-16)
Private Const WS_THICKFRAME As Long = &H40000
Const MIN_BOX As Long = &H20000
Const MAX_BOX As Long = &H10000
Private Declare PtrSafe Function DrawMenuBar Lib "user32.dll" (ByVal hwnd As Long) As Long
Private Declare PtrSafe Function GetForegroundWindow Lib "user32.dll" () As Long
Public Sub AddToForm(ByVal Box_Type As Long)
Dim BisMask As Long
Dim Window_Handle As Long
Dim WindowStyle As Long
Dim Ret As Long
If Box_Type = MIN_BOX Or Box_Type = MAX_BOX Then
Window_Handle = GetForegroundWindow()
WindowStyle = GetWindowLong(Window_Handle, GWL_STYLE)
BisMask = WindowStyle Or Box_Type
Ret = SetWindowLong(Window_Handle, GWL_STYLE, BisMask)
Ret = DrawMenuBar(Window_Handle)
End If
End Sub
Private Sub UserForm_Activate()
Call AddToForm(MIN_BOX)
Call AddToForm(MAX_BOX)
End Sub