Is there a SizeToContent function?

void FitToContent(CXTPButton *pwndButton, CSize szMax)
  {
  if (pwndButton->GetSafeHwnd())
    {
    CXTPMarkupUIElement *pUIElement = pwndButton->GetMarkupUIElement();
    if (pUIElement)
      {
      // Measure markup UI elementw ith max size limits and get the measured desired size.
      CSize sz = XTPMarkupMeasureElement(pUIElement, szMax.cx, szMax.cy);

      // Resize the button window.
      pwndButton->SetWindowPos(NULL, 0, 0, sz.cx, sz.cy, SWP_NOZORDER | SWP_NOMOVE | SWP_NOACTIVATE);
      }
    else
      {
      // Not a markup enabled button...
      }
    }
  }