同样问题。
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 GWL_STYLE = (-16)
Const WS_CAPTION = &HC00000
Const WS_BORDER = &H800000
Private Sub MDIForm_Load()
Dim L As Long
L = GetWindowLong(Me.hwnd, GWL_STYLE)
L = L And Not (WS_BORDER) And Not (WS_CAPTION)
L = SetWindowLong(Me.hwnd, GWL_STYLE, L)
End Sub