::ScreenToClient((HWND) mdiParent->GetClientWindow()->GetHWND(), &point);
MoveWindow(hWnd, point.x, point.y, actual_width, actual_height, (BOOL)true);
::ScreenToClient((HWND) mdiParent->GetClientWindow()->GetHWND(), &point);
MoveWindow(hWnd, point.x, point.y, actual_width, actual_height, (BOOL)true);