/// <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..
}