需要用到dll和文件:
其中3个dll文件是需要调用的dll,license.dat文件为解压图片的授权文件
以下是需要用到的dll里面的方法:
/************************端口类API *************************/
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_SetMaxRFByte", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_SetMaxRFByte(int iPort, byte ucByte, int iIfOpen);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_GetCOMBaud", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_GetCOMBaud(int iPort, ref uint puiBaudRate);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_SetCOMBaud", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_SetCOMBaud(int iPort, uint uiCurrBaud, uint uiSetBaud);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_OpenPort", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_OpenPort(int iPort);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_ClosePort", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_ClosePort(int iPort);
/**************************SAM类函数 **************************/
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_ResetSAM", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_ResetSAM(int iPort, int iIfOpen);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_GetSAMStatus", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_GetSAMStatus(int iPort, int iIfOpen);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_GetSAMID", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_GetSAMID(int iPort, ref byte pucSAMID, int iIfOpen);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_GetSAMIDToStr", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_GetSAMIDToStr(int iPort, ref byte pcSAMID, int iIfOpen);
/*************************身份证卡类函数 ***************************/
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_StartFindIDCard", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_StartFindIDCard(int iPort, ref byte pucIIN, int iIfOpen);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_SelectIDCard", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_SelectIDCard(int iPort, ref byte pucSN, int iIfOpen);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_ReadBaseMsg", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_ReadBaseMsg(int iPort, IntPtr pucCHMsg, ref uint puiCHMsgLen, IntPtr pucPHMsg,
ref uint puiPHMsgLen, int iIfOpen);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_ReadIINSNDN", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_ReadIINSNDN(int iPort, ref byte pucIINSNDN, int iIfOpen);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_ReadBaseMsgToFile", CharSet = CharSet.Ansi,
SetLastError = true)]
public static extern int Syn_ReadBaseMsgToFile(int iPort, ref byte pcCHMsgFileName, ref uint puiCHMsgFileLen,
ref byte pcPHMsgFileName, ref uint puiPHMsgFileLen, int iIfOpen);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_ReadIINSNDNToASCII", CharSet = CharSet.Ansi,
SetLastError = true)]
public static extern int Syn_ReadIINSNDNToASCII(int iPort, ref byte pucIINSNDN, int iIfOpen);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_ReadNewAppMsg", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_ReadNewAppMsg(int iPort, ref byte pucAppMsg, ref uint puiAppMsgLen, int iIfOpen);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_GetBmp", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_GetBmp(string Wlt_File, int iPort);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_ReadMsg", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_ReadMsg(int iPortID, int iIfOpen, ref IDCardData pIDCardData);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_FindReader", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_FindReader();
/***********************设置附加功能函数 ************************/
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_SetPhotoPath", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_SetPhotoPath(int iOption, ref byte cPhotoPath);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_SetPhotoType", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_SetPhotoType(int iType);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_SetPhotoName", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_SetPhotoName(int iType);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_SetSexType", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_SetSexType(int iType);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_SetNationType", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_SetNationType(int iType);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_SetBornType", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern int Syn_SetBornType(int iType);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_SetUserLifeBType", CharSet = CharSet.Ansi,
SetLastError = true)]
public static extern int Syn_SetUserLifeBType(int iType);
[DllImport("idCardDll\\SynIDCardAPI.dll", EntryPoint = "Syn_SetUserLifeEType", CharSet = CharSet.Ansi,
SetLastError = true)]
public static extern int Syn_SetUserLifeEType(int iType, int iOption);
[DllImport("idCardDll\\WltRS.dll", CallingConvention = CallingConvention.StdCall, SetLastError = true)]
static extern int GetBmp(string pucPHMsg, int intf);
接口函数
读取身份证信息分两个阶段,第一个阶段是获取基本信息,第二个阶段是获取图片信息
获取基本信息很简单,直接调用dll的方法就可以完成,部分代码如下:
int status = 1;//默认为找不到身份证
try
{
//先查找读卡器
int i, nRet;
i = Syn_FindReader();
//只支持usb
if (i > 1000)
{
var nPort = i;
if (Syn_OpenPort(nPort) == 0)
{
Thread.Sleep(5);
if (Syn_SetMaxRFByte(nPort, 80, 0) == 0)
{
Thread.Sleep(5);
byte[] pucIIN = new byte[4];
byte[] pucSN = new byte[8];
IDCardData cardMsg = new IDCardData();
nRet = Syn_StartFindIDCard(nPort, ref pucIIN[0], 0); //找卡
nRet = Syn_SelectIDCard(nPort, ref pucSN[0], 0); //选卡
string cardStr = new string(' ', 256); //身份证基本信息返回长度为256
string imgMsg = new string(' ', 1024); //身份证图片信息返回长度为1024
IntPtr msg = Marshal.StringToHGlobalAnsi(cardStr); //身份证基本信息
IntPtr img = Marshal.StringToHGlobalAnsi(imgMsg); //身份证图片
uint mLen = 0;
uint iLen = 0;
nRet = Syn_ReadBaseMsg(nPort, msg, ref mLen, img, ref iLen, 0);
if (nRet == 0)
{
Syn_ClosePort(nPort);
string card = Marshal.PtrToStringUni(msg);
char[] cartb = card.ToCharArray();
cardMsg.Name = (new string(cartb, 0, 15)).Trim();
cardMsg.Sex = new string(cartb, 15, 1);
cardMsg.Nation = new string(cartb, 16, 2);
cardMsg.Born = new string(cartb, 18, 8);
cardMsg.Address = (new string(cartb, 26, 35)).Trim();
cardMsg.IDCardNo = new string(cartb, 61, 18);
cardMsg.GrantDept = (new string(cartb, 79, 15)).Trim();
cardMsg.UserLifeBegin = new string(cartb, 94, 8);
cardMsg.UserLifeEnd = new string(cartb, 102, 8);
获取基本信息
获取图片方法有点麻烦,首先通过Syn_ReadBaseMsg方法返回的图片指针和长度获取的字节信息:
byte[] data=new byte[iLen];
Marshal.Copy(img,data,0,data.Length);
View Code
将这个获取到的字节信息保存为文件,注意,这里的文件不是图片文件,而是一个wlt类型文件,如果需要获取图片,那么还需要通过GetBmp方法做转换
private static string GetImageBase64Str(byte[] data, string idCardNo)
{
if (!CheckLicense()) return string.Empty;//license.dat文件失败,那么就不能去获取文件
var wltFileName = Path.Combine(_imageDirPath,
string.Format("{0}.wlt", idCardNo));
if (File.Exists(wltFileName))
{
File.Delete(wltFileName);
}
using (FileStream fs = new FileStream(wltFileName, FileMode.Create))
{
fs.Write(data, 0, data.Length);
fs.Close();
}
var nRet = GetBmp(wltFileName, 2);
if (nRet == 1)
{
// Thread.Sleep(200);
string bmpFileName = Path.Combine(_imageDirPath,
string.Format("{0}.bmp", idCardNo));
if (File.Exists(bmpFileName))
{
var str = GetFileBase64Str(bmpFileName);
// File.Delete(bmpFileName);
return str;
}
}
return string.Empty;
}
View Code
代码中将图片信息转换为了base64字符串。
注意:
1.由于GetBmp调用了sdtapi.dll中的方法,所以在之前要先要关闭读取的端口,不然会报错。(这是网上用户提醒的,我没有测试过不关闭的情况)
2.GetBmp方法会在wlt文件的当前目录下生成一个同名的bmp文件,这个文件就是身份证图片文件
3.获取图片方法需要厂家的授权文件,我用的dll和授权文件都是新中新的,其中授权文件为license.dat,这个文件必须存放在C盘根目录下,并且不能改名,不然读取会出错
//检测授权文件
private static bool CheckLicense()
{
var licenceFile = @"c:\license.dat";
var localFile = @"idCardDll\license.dat";
try
{
if (!File.Exists(licenceFile))
{
//不存在,拷贝文件过去
File.Copy(localFile,licenceFile,true);
return true;
}
//文件存在,需要判断数据是否一致
string local = string.Empty;
string license = string.Empty;
using (FileStream fs = new FileStream(localFile, FileMode.Open, FileAccess.Read))
{
using (StreamReader sr = new StreamReader(fs))
{
local = sr.ReadToEnd();
}
}
using (FileStream fs = new FileStream(licenceFile, FileMode.Open, FileAccess.Read))
{
using (StreamReader sr = new StreamReader(fs))
{
license = sr.ReadToEnd();
}
}
if (local == license)
{
return true;
}
else
{
File.Copy(localFile, licenceFile, true);
return true;
}
}
catch (Exception ex)
{
//"判断license失败,不能去获取图片";
return false;
}
}
拷贝检测授权文件
在转换图片之前先判断授权文件,成功在执行转换操作。
最终结果是将信息存储IDCardData结构体中,图片信息转换为base64str。
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
public struct IDCardData
{
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)]
public string Name; //姓名
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 6)]
public string Sex; //性别
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 20)]
public string Nation; //名族
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 18)]
public string Born; //出生日期
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 72)]
public string Address; //住址
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 38)]
public string IDCardNo; //身份证号
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)]
public string GrantDept; //发证机关
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 18)]
public string UserLifeBegin; // 有效开始日期
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 18)]
public string UserLifeEnd; // 有效截止日期
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 38)]
public string reserved; // 保留
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 255)]
public string PhotoBase64Str; // 照片路径
}
身份证结构
WltRS.dll一定要新一点的,我以前用的是2007年的,在转换头像的时候总是报错,找了一个新的,是2012年的,就好了。
以下是我写的一个demo,可以直接调用获取,包含了32位和64的驱动
https://gitee.com/sczmzx/IdCardReaderHelper/tree/master/IdCardReaderHelper