CONST	OTERR_FAILURE=-1,
		OTERR_SUCCESS=0,
		OTERR_BADTAG=1,
		OTERR_UNKNOWNTAG=2,
		OTERR_BADDATA=3,
		OTERR_NOMEMORY=4,
		OTERR_NOFACE=5,
		OTERR_BADFACE=6,
		OTERR_NOGLYPH=7,
		OTERR_BADGLYPH=8,
		OTERR_NOSHEAR=9,
		OTERR_NOROTATE=10,
		OTERR_TOOSMALL=11,
		OTERR_UNKNOWNGLYPH=12
