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public static NET_OUT_GET_FACE_INFO getFaceInfo(String userId) {
        NET_IN_GET_FACE_INFO stIn = new NET_IN_GET_FACE_INFO();
        System.arraycopy(userId.getBytes(), 0, stIn.szUserID, 0, userId.getBytes().length);
        NET_OUT_GET_FACE_INFO stOut = new NET_OUT_GET_FACE_INFO();

        stIn.write();
        stOut.write();

        boolean bRet = LoginModule.netsdk.CLIENT_FaceInfoOpreate(LoginModule.m_hLoginHandle, EM_FACEINFO_OPREATE_TYPE.EM_FACEINFO_OPREATE_GET, stIn.getPointer(), stOut.getPointer(), 5000);
        if (bRet) {
            System.out.println("find face info!");
        } else {
            System.err.println("error in reading face!" + ToolKits.getErrorCodePrint());
            return null;
        }

        stIn.read();
        stOut.read();

        return stOut;
    }

{error code: (0x80000000|21).参考  NetSDKLib.java } - {error info:Error occurs when verify returned data}