/// <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;
}
}
}
}
/// <summary>
/// 让指纹仪停下来
/// </summary>
public static void StopFingerprint()
{
IsRollCalling = false;
HdFingerprintHelper.FpCloseUsb(FingerPrintHandle);
}
/// <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..
}
