((mng_datap)hHandle)->bUseBKGD = MNG_FALSE;
mng_retcode MNG_DECL mng_set_bgcolor (mng_handle hHandle,                                      mng_uint16 iRed,                                      mng_uint16 iGreen,                                      mng_uint16 iBlue){#ifdef MNG_SUPPORT_TRACE  MNG_TRACE (((mng_datap)hHandle), MNG_FN_SET_BGCOLOR, MNG_LC_START)#endif  MNG_VALIDHANDLE (hHandle)  ((mng_datap)hHandle)->iBGred   = iRed;  ((mng_datap)hHandle)->iBGgreen = iGreen;  ((mng_datap)hHandle)->iBGblue  = iBlue;#ifdef MNG_SUPPORT_TRACE  MNG_TRACE (((mng_datap)hHandle), MNG_FN_SET_BGCOLOR, MNG_LC_END)#endif  return MNG_NOERROR;}