WM_HWIN WM_SetFocusOnNextChild(WM_HWIN hParent) {     /* Set the focus to the first child */
  WM_HWIN r;
  WM_LOCK();
    r = _SetFocusOnNextChild(hParent);
  WM_UNLOCK();
  return r;
}
/*********************************************************************
*
*       WM_SetFocusOnNextChild
*/
WM_HWIN WM_SetFocusOnNextChild(WM_HWIN hParent) {
  WM_HWIN r = 0;
  if (hParent) {
    WM_LOCK();
    r = _SetFocusOnNextChild(hParent);
    WM_UNLOCK();
  }
  return r;
}