/// <summary>
 /// 比对现有指纹库
 /// </summary>
 /// <returns></returns>
 private unsafe bool DownChar(string hexstr)
 {
     //连接指纹
     if ((n = FingerPrintHelper.PSOpenDeviceEx(out pHandle, 2, 1)) == (int)ReturnValue.PS_OK)
     {
         //清除指纹库模板信息
         if (FingerPrintFuc(() => { return(FingerPrintHelper.PSEmpty(pHandle, nAddr)); }))
         {
             byte[] tempbyte = FingerPrintHelper.strToHexByte(hexstr);
             fixed(byte *arry = tempbyte)
             {
                 if (FingerPrintHelper.PSDownChar(pHandle, nAddr, iBufferID, arry, 512) == (int)ReturnValue.PS_OK)
                 {
                     iBufferID++;
                     System.Timers.Timer upTimer = new System.Timers.Timer(1500);
                     upTimer.Elapsed += (o, e) =>
                     {
                         if (FingerPrintFuc(() => { return(FingerPrintHelper.PSGetImage(pHandle, nAddr)); }, false))
                         {
                             if (FingerPrintFuc(() => { return(FingerPrintHelper.PSGenChar(pHandle, nAddr, iBufferID)); }))
                             {
                                 //比对两个区后就是是否成功
                                 if (FingerPrintFuc(() => { return(FingerPrintHelper.PSMatch(pHandle, nAddr, out iScore)); }))
                                 {
                                     ThisDelegate(() => { MessageBox.Show(string.Format("比对成功,分数{0}", iScore)); });
                                 }
                             }
                         }
                     };
                     upTimer.AutoReset = true;
                     upTimer.Enabled   = true;
                     upTimer.Start();
                 }
             }
         }
     }
     return(true);
 }
 /// <summary>
 /// 计时器事件
 /// </summary>
 private void Objtimer_Tick(object sender, EventArgs e)
 {
     Task.Run(() =>
     {
         try
         {
             lock (printLock)
             {
                 if (FingerPrintFuc(() => { return(FingerPrintHelper.PSGetImage(pHandle, nAddr)); }, false))
                 {
                     if (FingerPrintFuc(() => { return(FingerPrintHelper.PSGenChar(pHandle, nAddr, iBufferID)); }))
                     {
                         if (iBufferID == 2)
                         {
                             ThisDelegate(() => { pic_fingerprint.Image = global::FingerPrintControl.Properties.Resources.FingerPrint2; });
                             aTimer.Stop();
                             if (FingerPrintFuc(() => { return(FingerPrintHelper.PSRegModule(pHandle, nAddr)); }))
                             {
                                 if (FingerPrintFuc(() => { return(FingerPrintHelper.PSStoreChar(pHandle, nAddr, iBufferID, 0)); }))
                                 {
                                     //合成后的模板在A区
                                     if (FingerPrintFuc(() => { return(FingerPrintHelper.PSLoadChar(pHandle, nAddr, 1, 0)); }))
                                     {
                                         ChangeText("请将手指放到指纹仪确认指纹");
                                         Checktimer           = new System.Timers.Timer(1500);
                                         Checktimer.AutoReset = true;
                                         //开始计时
                                         Checktimer.Enabled = true;
                                         //确认指纹成功
                                         bool checkResult    = false;
                                         Checktimer.Elapsed += (o, objevent) =>
                                         {
                                             lock (checkLock)
                                             {
                                                 if (checkResult)
                                                 {
                                                     return;
                                                 }
                                                 if ((n = FingerPrintHelper.PSGetImage(pHandle, nAddr)) == (int)ReturnValue.PS_OK)
                                                 {
                                                     //再次获取后的放在B区
                                                     if (FingerPrintFuc(() => { return(FingerPrintHelper.PSGenChar(pHandle, nAddr, 2)); }))
                                                     {
                                                         //比对两个区后就是是否成功
                                                         if (FingerPrintFuc(() => { return(FingerPrintHelper.PSMatch(pHandle, nAddr, out iScore)); }))
                                                         {
                                                             string hexStr = UpChar();
                                                             if (hexStr != string.Empty)
                                                             {
                                                                 ThisDelegate(() => { pic_fingerprint.Image = global::FingerPrintControl.Properties.Resources.FingerPrint4; });
                                                                 checkResult = true;
                                                                 Checktimer.Stop();
                                                                 ClearVal();
                                                                 ChangeText("录入完成");
                                                                 OnFingerPrintCompleted(this, hexStr);
                                                             }
                                                         }
                                                     }
                                                 }
                                                 else
                                                 {
                                                     var returnValue = n.ToEnum <ReturnValue>();
                                                     if (returnValue != ReturnValue.PS_NO_FINGER)
                                                     {
                                                         ShowTip("提示", n.ToEnumDescriptionString(typeof(ReturnValue)));
                                                     }
                                                     else if (returnValue == ReturnValue.PS_LITTLE_FEATURE)
                                                     {
                                                         ShowTip("提示", "指纹不匹配");
                                                     }
                                                 }
                                             }
                                         };
                                         Checktimer.Start();
                                     }
                                 }
                             }
                         }
                         if (iBufferID == 1)
                         {
                             ThisDelegate(() => { pic_fingerprint.Image = global::FingerPrintControl.Properties.Resources.FingerPrint1; });
                             ChangeText("请抬起手指");
                             iBufferID = 2;
                             Thread.Sleep(2000);
                             ChangeText("请将手指再次放到指纹仪");
                         }
                     }
                 }
             }
         }
         catch (Exception ex)
         {
             ShowTip("指纹仪错误", "请再次重试");
             LogHelper.AsnyWriteLog(ex.ToString());
         }
     });
 }