运行后改变控件大小

　　 
　　Private Declare Function GetWindowLong Lib "user32" Alias "GetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long) 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 Declare Function SetWindowPos Lib "user32" (ByVal hwnd As Long, ByVal hWndInsertAfter As Long, ByVal X As Long, ByVal Y As Long, ByVal cx As Long, ByVal cy As Long, ByVal wFlags As Long) As Long

Private Sub ControlSize(ControlName As Control, SetTrue As Boolean)
    Dim dwStyle As Long
    dwStyle = GetWindowLong(ControlName.hwnd, GWL_STYLE)
    If SetTrue Then
      dwStyle = dwStyle Or WS_THICKFRAME
    Else
      dwStyle = dwStyle - WS_THICKFRAME
    End If
    dwStyle = SetWindowLong(ControlName.hwnd, GWL_STYLE, dwStyle)
    SetWindowPos ControlName.hwnd, ControlName.Parent.hwnd, 0, 0, 0, 0, SWP_NOZORDER Or SWP_NOSIZE Or SWP_NOMOVE Or SWP_DRAWFRAME
End Sub

Private Sub Form_Load()
    ControlSize Picture1, True
    ControlSize Text1, True
End Sub

原文转自：http://www.ltesting.net