最近做一個指紋采集和比對的功能，因為公司整個項目是WEB類型的，所以指紋采集的模塊要嵌套在網頁中，那只有用ActiveX了，以下是一些操作及效果，做個筆記！
新建用戶控件，編寫CS代碼，如下：
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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using System.IO;
using System.Reflection;
namespace FingerTool
{
[Guid("5136CBA1-59B0-4A96-B2DC-64062A81F377")]
public partial class FingerToolUC : UserControl,IObjectSafety
{
public FingerToolUC()
{
InitializeComponent();
}
FrmMain fm = null;
public void ShowSettingForm()
{
if (fm == null)
{
fm = new FrmMain();
}
fm.ShowDialog();
}
#region 調用JS接口
[ComImport, Guid("00000118-0000-0000-C000-000000000046"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
public interface IOleClientSite
{
void SaveObject();
void GetMoniker(uint dwAssign, uint dwWhichMoniker, object ppmk);
void GetContainer(out IOleContainer ppContainer);
void ShowObject();
void OnShowWindow(bool fShow);
void RequestNewObjectLayout();
}
[ComImport, Guid("0000011B-0000-0000-C000-000000000046"), InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
public interface IOleContainer
{
void EnumObjects([In, MarshalAs(UnmanagedType.U4)] int grfFlags,
[Out, MarshalAs(UnmanagedType.LPArray)] object[] ppenum);
void ParseDisplayName([In, MarshalAs(UnmanagedType.Interface)] object pbc,
[In, MarshalAs(UnmanagedType.BStr)] string pszDisplayName,
[Out, MarshalAs(UnmanagedType.LPArray)] int[] pchEaten,
[Out, MarshalAs(UnmanagedType.LPArray)] object[] ppmkOut);
void LockContainer([In, MarshalAs(UnmanagedType.I4)] int fLock);
}
#endregion
#region IE 安全接口
private const string _IID_IDispatch = "{00020400-0000-0000-C000-000000000046}";
private const string _IID_IDispatchEx = "{a6ef9860-c720-11d0-9337-00a0c90dcaa9}";
private const string _IID_IPersistStorage = "{0000010A-0000-0000-C000-000000000046}";
private const string _IID_IPersistStream = "{00000109-0000-0000-C000-000000000046}";
private const string _IID_IPersistPropertyBag = "{37D84F60-42CB-11CE-8135-00AA004BB851}";
private const int INTERFACESAFE_FOR_UNTRUSTED_CALLER = 0x00000001;
private const int INTERFACESAFE_FOR_UNTRUSTED_DATA = 0x00000002;
private const int S_OK = 0;
private const int E_FAIL = unchecked((int)0x80004005);
private const int E_NOINTERFACE = unchecked((int)0x80004002);
private bool _fSafeForScripting = true;
private bool _fSafeForInitializing = true;
public int GetInterfaceSafetyOptions(ref Guid riid, ref int pdwSupportedOptions, ref int pdwEnabledOptions)
{
int Rslt = E_FAIL;
string strGUID = riid.ToString("B");
pdwSupportedOptions = INTERFACESAFE_FOR_UNTRUSTED_CALLER | INTERFACESAFE_FOR_UNTRUSTED_DATA;
switch (strGUID)
{
case _IID_IDispatch:
case _IID_IDispatchEx:
Rslt = S_OK;
pdwEnabledOptions = 0;
if (_fSafeForScripting == true)
pdwEnabledOptions = INTERFACESAFE_FOR_UNTRUSTED_CALLER;
break;
case _IID_IPersistStorage:
case _IID_IPersistStream:
case _IID_IPersistPropertyBag:
Rslt = S_OK;
pdwEnabledOptions = 0;
if (_fSafeForInitializing == true)
pdwEnabledOptions = INTERFACESAFE_FOR_UNTRUSTED_DATA;
break;
default:
Rslt = E_NOINTERFACE;
break;
}
return Rslt;
}
指紋采集關鍵代碼：
? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61private void axZKFPEngX1_OnImageReceived(object sender, AxZKFPEngXControl.IZKFPEngXEvents_OnImageReceivedEvent e)
{
if (!e.aImageValid) return;
if (axZKFPEngX1.IsDisposed) return;
try
{
if (pictureBox1.Image != null)
{
pictureBox1.Image.Dispose();//釋放文件資源
pictureBox1.Image = null;//清除圖片
}
if (!System.IO.Directory.Exists(mvPath))
{
System.IO.Directory.CreateDirectory(mvPath);
}
string FilePath = mvPath + "\\" + Guid.NewGuid().ToString() + ".bmp";
axZKFPEngX1.SaveBitmap(FilePath);//保存新文件
pictureBox1.Image = System.Drawing.Bitmap.FromFile(FilePath);//顯示圖片
pictureBox1.Refresh();
if (this.txtValue.Text.Trim() != "")
{
SetMsg("", "Control");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void axZKFPEngX1_OnFeatureInfo(object sender, AxZKFPEngXControl.IZKFPEngXEvents_OnFeatureInfoEvent e)
{
string sTemp = "";
if (axZKFPEngX1.IsRegister)
{
sTemp = "登記狀態：還需要按壓：" + (axZKFPEngX1.EnrollIndex - 1).ToString() + "次指紋 ";
}
sTemp = sTemp + "指紋質量";
if (e.aQuality != 0)
{
if (e.aQuality == 1)
{
sTemp = sTemp + "特征點不夠";
}
else
{
sTemp = sTemp + "其它原因導致不能取到指紋特征";
}
}
else
{
sTemp = sTemp + "合格";
}
this.lblMessage.Text = sTemp;
}
指紋校驗部分，最後保存起來的指紋是轉換之後的BASE64字符串
? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24string Value_Old="";//已經登記的指紋
string Value_Curr="";//當前的指紋
bool IsOK = false;
bool bRegChange = false;
if (axZKFPEngX1.VerFingerFromStr(ref Value_Old, Value_Curr, false, ref bRegChange))
{
IsOK = true;
}
if (axZKFPEngX1.VerFingerFromStr(ref Value_Old2, Value_Curr, false, ref bRegChange))
{
IsOK = true;
}
if (IsOK)
{
MessageBox.Show("OK");
}
else
{
MessageBox.Show("NG");
}
設置項目的COM屬性
在頁面中注冊此插件
采集指紋的次數可以自定義，默認為采集三次之後保存,設備是中控的采集器。
