unsafe public static extern int cFaceRelease(void *pWorker, FaceInfos *pFaces);
unsafe public static extern int cGenderDetect(void *pWorker, FaceInfos *pFaces);
unsafe public static extern int cFeatureExtract(void *pWorker, FaceInfos *pFaces, int nIndex, void *pFeature);
unsafe public static extern int cFaceDetect(void *pWorker, void *pFram, FaceInfos *pFaces);