public Segment MakeSeg(UInt32 script, Featureval feats, string str, Bidirtl dir)
{
IntPtr strPtr = Marshal.StringToCoTaskMemUni(str);
IntPtr error = new IntPtr(0);
int numCodePoints = Graphite2Api.CountUnicodeCharacters(Encform.Utf16, strPtr, IntPtr.Zero, ref error);
IntPtr segmentPtr = Graphite2Api.MakeSeg(_font, _face.FacePtr, script, feats.FeatureValPtr, Encform.Utf16, strPtr, numCodePoints, dir);
Marshal.FreeCoTaskMem(strPtr);
return(new Segment(segmentPtr));
}
