/// <summary>
        /// 一个大循环 用来操作指纹仪.
        /// 这个函数要放到一个线程里来执行
        /// </summary>
        /// <param name="studentList"></param>
        /// <param name="updateUserInterfaceDelegate">用来操作UI的委托</param>
        public static void Enroll(List <Student> studentList, UpdateUserInterfaceDelegate updateUserInterfaceDelegate)
        {
            FingerPrintHandle = HdFingerprintHelper.FpOpenUsb(0xFFFFFFFF, 1000);    // 打开指纹仪驱动

            //while (FingerPrintHandle == IntPtr.Zero) {

            //    var confirmResault = ShowConfirmBox ( "指纹仪初始化失败 \n是否重新初始化指纹仪?" );

            //    if (confirmResault == DialogResult.OK) {

            //        FingerPrintHandle = HdFingerprintHelper.FpOpenUsb ( 0xFFFFFFFF, 1000 );

            //    } else {

            //        ShowMsgBox ( "当前指纹仪无法工作,请使用手动考勤." );

            //        return;
            //    }
            //}

            //如果打不开 就只能手动签到了
            //上面的这些已经注释了.  因为在switch那边有对错误的处理.


            var acceptPlayer = new SoundPlayer(Resources.Accept);

            var rejectPlayer = new SoundPlayer(Resources.Reject);

            var fingerprintImagePath = GlobalParams.RootDir + "/fingerprint.bmp";

            while (IsRollCalling)
            {
                UInt16 fingerprintid = 1000;

                UInt16 similarity = 0;


                var fingerPrintStat = HdFingerprintHelper.StartVerify(FingerPrintHandle, fingerprintImagePath, ref fingerprintid, ref similarity,
                                                                      3000);

                if (!IsRollCalling)
                {
                    return;                 // 如果结束点名了 这个函数直接返回即可
                }
                switch (fingerPrintStat)
                {
                case 0: {
                    acceptPlayer.Play();

                    var index = studentList.FindIndex(s => s.FingerprintId == fingerprintid);

                    if (index == -1)
                    {
                        continue;
                    }

                    var student = studentList[index];

                    student.SignIn(DateTime.Now);

                    //var fingerprintImage = new File(GlobalParams.RootDir+@"/fingerprint.bmp")

                    var fileInfo = new FileInfo(fingerprintImagePath);

                    Image fingerprintImage;

                    if (fileInfo.Length != 0)
                    {
                        var stream = File.Open(fingerprintImagePath, FileMode.Open);

                        fingerprintImage = Image.FromStream(stream);

                        stream.Close();
                    }
                    else
                    {
                        fingerprintImage = null;
                    }

                    var normalStudentNum = CountNormalStudent(studentList);

                    var absentStudentNum = CountAbsentStudent(studentList);

                    var lateStudentNum = CountLateStudent(studentList);

                    var askForLeaveStudentNum = CountAskForLeaveStudent(studentList);

                    var leaveEarlyStudentNum = CountLeaveEarlyStudent(studentList);

                    var expectedStudentNum = studentList.Count;

                    var course = new CourseInfo(expectedStudentNum: expectedStudentNum, didNotSubmitStudentNum:
                                                absentStudentNum, actualStudentNum: normalStudentNum,
                                                askForLeaveStudentNum: askForLeaveStudentNum);

                    updateUserInterfaceDelegate(fingerprintImage, course, student);

                    CopyOfStudentList = studentList;

                    break;
                }

                case 9: {
                    //这里会出现文件占用的问题. 文件->流->图片
                    var fileInfo = new FileInfo(fingerprintImagePath);

                    Image fingerprintImage;

                    if (fileInfo.Length != 0)
                    {
                        var stream = File.Open(fingerprintImagePath, FileMode.Open);

                        fingerprintImage = Image.FromStream(stream);

                        stream.Close();
                    }
                    else
                    {
                        fingerprintImage = null;
                    }

                    updateUserInterfaceDelegate(fingerprintImage, null);

                    rejectPlayer.Play();

                    break;
                }

                default: {
                    var confirmResault = ConfirmBox.ShowConfirmBoxDialog(string.Format("指纹仪故障 故障代码:{0}\n 是否重新打开指纹仪", fingerPrintStat));

                    if (confirmResault == DialogResult.Cancel)
                    {
                        IsRollCalling = false;

                        return;
                        // 如果点了否 就结束指纹仪点名.  点是 重新初始化.  手动签到那里要判断一下(不用判断了 在switch的入口那边加了一个对IsrollCalling的一个判断.)
                    }
                    else
                    {
                        FingerPrintHandle = HdFingerprintHelper.FpOpenUsb(0xFFFFFFFF, 1000);        // 重新初始化指纹仪
                    }

                    break;
                }
                }
            }
        }
Exemple #2
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        /// <summary>
        /// 初始化指纹仪 向指纹仪中下载指纹数据
        /// </summary>
        /// <param name="studentList"></param>
        /// <param name="updateProgress"></param>
        /// <param name="showConfirmBox"></param>
        /// <param name="closeProgressBar"></param>
        public static void InitFingerprint(ref List <Student> studentList, UpdateProgressBarDelegate updateProgress,
                                           ShowConfirmBoxDelegate showConfirmBox, CloseProgressBarDelegate closeProgressBar)
        {
            Thread.Sleep(1000);                                                   // 等待进度条窗口创建完毕

            var fingerprintPtr = HdFingerprintHelper.FpOpenUsb(0xFFFFFFFF, 1000); // 打开指纹仪驱动

            while (fingerprintPtr == IntPtr.Zero)
            {
                var confirmResault = showConfirmBox("指纹仪初始化失败 \n是否重新初始化指纹仪?");

                if (confirmResault == DialogResult.OK)
                {
                    fingerprintPtr = HdFingerprintHelper.FpOpenUsb(0xFFFFFFFF, 1000);
                }
                else
                {
                    closeProgressBar();

                    return;
                }
            }

            HdFingerprintHelper.FpEmpty(fingerprintPtr, 5000); //清空指纹仪

            ushort fingerprintId = 0;                          // 指纹Id

            var total = studentList.Count;                     // 获取学生总数

            foreach (var student in studentList)
            {
                if (string.IsNullOrEmpty(student.FingerprintString))
                {
                    continue;
                }

                fingerprintId++;


                var operationResault = HdFingerprintHelper.Download1Fingerprint(fingerprintPtr, student.FingerprintString, fingerprintId, 1000);    // 初始化一个指纹.

                updateProgress(1, string.Format("正在初始化 第{0}个指纹,\n共{1}个\n该学生的姓名为:{2}", fingerprintId, total, student.StudentName));

                if (operationResault != 0)
                {
                    var confirmResault = showConfirmBox(string.Format("有一条指纹初始化失败 错误代码:{0}\n该指纹对应的学生学号为:{1}\n学生姓名为:{2}\n是否继续初始化指纹仪?"
                                                                      , operationResault, student.StudentId, student.StudentName));

                    if (confirmResault == DialogResult.Cancel)
                    {
                        closeProgressBar();

                        return;
                    }

                    //和上面初始化指纹仪的过程是一样的

                    fingerprintPtr = HdFingerprintHelper.FpOpenUsb(0xFFFFFFFF, 1000);    // 打开指纹仪驱动

                    while (fingerprintPtr == IntPtr.Zero)
                    {
                        confirmResault = showConfirmBox("指纹仪初始化失败 \n是否重新初始化指纹仪?");

                        if (confirmResault == DialogResult.OK)
                        {
                            fingerprintPtr = HdFingerprintHelper.FpOpenUsb(0xFFFFFFFF, 1000);
                        }
                        else
                        {
                            closeProgressBar();

                            return;
                        }
                    }

                    //结束. 这块操作可以封装成一个函数
                }

                student.FingerprintId = fingerprintId; // 将指纹编号放到StudentList中.
            }

            closeProgressBar();

            HdFingerprintHelper.FpCloseUsb(fingerprintPtr);    // 初始化完毕之后关闭指纹仪 等需要签到的时候再打开指纹仪..
        }