void swf_FontAddLayout(SWFFONT * f, int ascent, int descent, int leading);
int swf_FontExtract_DefineTextCallback(int id,SWFFONT * f,TAG * t,int jobs,
void(*callback)(int*chars, int nr, int id));
void swf_FontAddLayout(SWFFONT * f, int ascent, int descent, int leading);
int swf_FontExtract_DefineTextCallback(int id,SWFFONT * f,TAG * t,int jobs,
void(*callback)(int*chars, int nr, int id));