*aPrintSettings = mPrintSettingsObj; return NS_OK;
*aPrintSettings = nsnull;   return NS_ERROR_NOT_IMPLEMENTED;
NS_IMETHODIMP nsPrintOptions::GetPrintSettings(nsIPrintSettings * *aPrintSettings){  NS_ENSURE_ARG_POINTER(aPrintSettings);  *aPrintSettings = mPrintSettingsObj;  return NS_OK;}