Private Declare Function SetWindowLong Lib "user32" _
Alias "SetWindowLongA" (ByVal hwnd As Long, ByVal _
nIndex As Long, ByVal dwNewLong As Long) As Long
Private Declare Function GetWindowLong Lib "user32" _
Alias "GetWindowLongA" (ByVal hwnd As Long, ByVal _
nIndex As Long) As Long
Const WS_MINIMIZEBOX = &H20000
Const WS_MAXIMIZEBOX = &H10000
Const GWL_STYLE = (-16)
使用：
Private Sub Form_Load()
Dim lWnd As Long
lWnd = GetWindowLong(Me.hwnd, GWL_STYLE)
lWnd = lWnd And Not (WS_MINIMIZEBOX)
lWnd = lWnd And Not (WS_MAXIMIZEBOX)
lWnd = SetWindowLong(Me.hwnd, GWL_STYLE, lWnd)
End Sub
