protected void CreateCharset(OffsetItem charsetRef,int nglyphs)
{
OutputList.Add(new MarkerItem(charsetRef));
OutputList.Add(new UInt8Item((char)2)); // format identifier
OutputList.Add(new UInt16Item((char)1)); // first glyph in range (ignore .notdef)
OutputList.Add(new UInt16Item((char)(nglyphs-1))); // nLeft
}