public TFacePosition DetectFace() { TFacePosition fp = new FSDK.TFacePosition(); int res = FSDK.DetectFace(hImage, ref fp); if (FSDKE_FACE_NOT_FOUND == res) { fp = new FSDK.TFacePosition(); fp.xc = 0; fp.yc = 0; fp.angle = 0; fp.w = 0; } else { CheckForError(res); } return(fp); }