之前为了能做硬件操作学习了C++，一直停留在试验阶段。由于之前项目都是HIS做好读卡对接了，就直接C#调HIS的dll了，一直没实际用C++对接过读卡器。这次终于有了个读卡机会，还有厂商配合，哈哈。
采用C++包装读卡操作为一个读卡方法如下：
//检验读身份证包装
#include <iostream>
#include "windows.h"
using namespace std;
//读身份证对外函数
extern "C" __declspec(dllexport) const char* LISReadIDCard();
//方法定义
typedef int(__stdcall* _UCommand1)(unsigned char* pCmd, int* parg0, int* parg1, int* parg2);
typedef int(__stdcall* _GetAddr)(char* pbuf);
typedef int(__stdcall* _GetBegin)(char* pbuf);
typedef int(__stdcall* _GetName)(char* pbuf);
typedef int(__stdcall* _GetSex)(char* pbuf);
typedef int(__stdcall* _GetSexGB)(char* pbuf);
typedef int(__stdcall* _GetFolk)(char* pbuf);
typedef int(__stdcall* _GetFolkGB)(char* pbuf);
typedef int(__stdcall* _GetIDNum)(char* pbuf);
typedef int(__stdcall* _GetDep)(char* pbuf);
typedef int(__stdcall* _GetBirth)(char* pbuf);
typedef int(__stdcall* _GetEnd)(char* pbuf);
typedef int(__stdcall* _GetNewAddr)(char* pbuf);
typedef int(__stdcall* _FID_GetEnName)(char* pbuf);
typedef int(__stdcall* _FID_GetSex)(char* pbuf);
typedef int(__stdcall* _FID_GetSexGB)(char* pbuf);
typedef int(__stdcall* _FID_GetIDNum)(char* pbuf);
typedef int(__stdcall* _FID_GetNationality)(char* pbuf);
typedef int(__stdcall* _FID_GetChNationality)(char* pbuf);
typedef int(__stdcall* _FID_GetChName)(char* pbuf);
typedef int(__stdcall* _FID_GetBegin)(char* pbuf);
typedef int(__stdcall* _FID_GetEnd)(char* pbuf);
typedef int(__stdcall* _FID_GetBirth)(char* pbuf);
typedef int(__stdcall* _FID_GetVersion)(char* pbuf);
typedef int(__stdcall* _FID_GetDep)(char* pbuf);
typedef int(__stdcall* _GetSAMIDToStr)(char* id);
typedef int(__stdcall* _GID_GetName)(char* pbuf);
typedef int(__stdcall* _GID_GetSex)(char* pbuf);
typedef int(__stdcall* _GID_GetSexGB)(char* pbuf);
typedef int(__stdcall* _GID_GetBirth)(char* pbuf);
typedef int(__stdcall* _GID_GetAddr)(char* pbuf);
typedef int(__stdcall* _GID_GetIDNum)(char* pbuf);
typedef int(__stdcall* _GID_GetDep)(char* pbuf);
typedef int(__stdcall* _GID_GetBegin)(char* pbuf);
typedef int(__stdcall* _GID_GetEnd)(char* pbuf);
typedef int(__stdcall* _GID_GetPassPortId)(char* pbuf);
typedef int(__stdcall* _GID_SignCount)(char* pbuf);
typedef int(__stdcall* _GID_GetCardType)(char* pbuf);
_UCommand1 UCommand1;
_GetAddr GetAddr;
_GetBegin GetBegin;
_GetName GetName;
_GetSex GetSex;
_GetSexGB GetSexGB;
_GetFolk GetFolk;
_GetFolkGB GetFolkGB;
_GetIDNum GetIDNum;
_GetDep GetDep;
_GetBirth GetBirth;
_GetEnd GetEnd;
_GetNewAddr GetNewAddr;
_FID_GetEnName FID_GetEnName;
_FID_GetSex FID_GetSex;
_FID_GetSexGB FID_GetSexGB;
_FID_GetIDNum FID_GetIDNum;
_FID_GetNationality FID_GetNationality;
_FID_GetChNationality FID_GetChNationality;
_FID_GetChName FID_GetChName;
_FID_GetBegin FID_GetBegin;
_FID_GetEnd FID_GetEnd;
_FID_GetBirth FID_GetBirth;
_FID_GetVersion FID_GetVersion;
_FID_GetDep FID_GetDep;
_GetSAMIDToStr GetSAMIDToStr;
_GID_GetName GID_GetName;
_GID_GetSex GID_GetSex;
_GID_GetSexGB GID_GetSexGB;
_GID_GetBirth GID_GetBirth;
_GID_GetAddr GID_GetAddr;
_GID_GetIDNum GID_GetIDNum;
_GID_GetDep GID_GetDep;
_GID_GetBegin GID_GetBegin;
_GID_GetEnd GID_GetEnd;
_GID_GetPassPortId GID_GetPassPortId;
_GID_SignCount GID_SignCount;
_GID_GetCardType GID_GetCardType;
/// <summary>
/// 字符串转宽字符串
/// </summary>
/// <param name="orig"></param>
/// <returns></returns>
LPCWSTR StringToLPCWSTR(std::string orig)
{
size_t origsize = orig.length() + 1;
const size_t newsize = 100;
size_t convertedChars = 0;
wchar_t* wcstring = (wchar_t*)malloc(sizeof(wchar_t) * (orig.length() - 1));
mbstowcs_s(&convertedChars, wcstring, origsize, orig.c_str(), _TRUNCATE);
return wcstring;
}
/// <summary>
/// 初始化读卡
/// </summary>
/// <returns>返回空就成功，返回-1^失败原因</returns>
const char* InitFunc()
{
HINSTANCE hDll = LoadLibraryEx(StringToLPCWSTR("RdCard.dll"), 0, LOAD_WITH_ALTERED_SEARCH_PATH);
if (hDll == NULL)
{
return "-1^RdCard.dll加载失败";
}
UCommand1 = (_UCommand1)GetProcAddress(hDll, "UCommand1");
GetAddr = (_GetAddr)GetProcAddress(hDll, "GetAddr");
GetBegin = (_GetBegin)GetProcAddress(hDll, "GetBegin");
GetName = (_GetName)GetProcAddress(hDll, "GetName");
GetSex = (_GetSex)GetProcAddress(hDll, "GetSex");
GetSexGB = (_GetSexGB)GetProcAddress(hDll, "GetSexGB");
GetFolk = (_GetFolk)GetProcAddress(hDll, "GetFolk");
GetFolkGB = (_GetFolkGB)GetProcAddress(hDll, "GetFolkGB");
GetIDNum = (_GetIDNum)GetProcAddress(hDll, "GetIDNum");
GetDep = (_GetDep)GetProcAddress(hDll, "GetDep");
GetBirth = (_GetBirth)GetProcAddress(hDll, "GetBirth");
GetEnd = (_GetEnd)GetProcAddress(hDll, "GetEnd");
GetNewAddr = (_GetNewAddr)GetProcAddress(hDll, "GetNewAddr");
FID_GetEnName = (_FID_GetEnName)GetProcAddress(hDll, "FID_GetEnName");
FID_GetSex = (_FID_GetSex)GetProcAddress(hDll, "FID_GetSex");
FID_GetSexGB = (_FID_GetSexGB)GetProcAddress(hDll, "FID_GetSexGB");
FID_GetIDNum = (_FID_GetIDNum)GetProcAddress(hDll, "FID_GetIDNum");
FID_GetNationality = (_FID_GetNationality)GetProcAddress(hDll, "FID_GetNationality");
FID_GetChNationality = (_FID_GetChNationality)GetProcAddress(hDll, "FID_GetChNationality");
FID_GetChName = (_FID_GetChName)GetProcAddress(hDll, "FID_GetChName");
FID_GetBegin = (_FID_GetBegin)GetProcAddress(hDll, "FID_GetBegin");
FID_GetEnd = (_FID_GetEnd)GetProcAddress(hDll, "FID_GetEnd");
FID_GetBirth = (_FID_GetBirth)GetProcAddress(hDll, "FID_GetBirth");
FID_GetVersion = (_FID_GetVersion)GetProcAddress(hDll, "FID_GetVersion");
FID_GetDep = (_FID_GetDep)GetProcAddress(hDll, "FID_GetDep");
GID_GetName = (_GID_GetName)GetProcAddress(hDll, "GID_GetName");
GID_GetSex = (_GID_GetSex)GetProcAddress(hDll, "GID_GetSex");
GID_GetSexGB = (_GID_GetSexGB)GetProcAddress(hDll, "GID_GetSexGB");
GID_GetBirth = (_GID_GetBirth)GetProcAddress(hDll, "GID_GetBirth");
GID_GetAddr = (_GID_GetAddr)GetProcAddress(hDll, "GID_GetAddr");
GID_GetIDNum = (_GID_GetIDNum)GetProcAddress(hDll, "GID_GetIDNum");
GID_GetDep = (_GID_GetDep)GetProcAddress(hDll, "GID_GetDep");
GID_GetBegin = (_GID_GetBegin)GetProcAddress(hDll, "GID_GetBegin");
GID_GetEnd = (_GID_GetEnd)GetProcAddress(hDll, "GID_GetEnd");
GID_GetPassPortId = (_GID_GetPassPortId)GetProcAddress(hDll, "GID_GetPassPortId");
GID_SignCount = (_GID_SignCount)GetProcAddress(hDll, "GID_SignCount");
GID_GetCardType = (_GID_GetCardType)GetProcAddress(hDll, "GID_GetCardType");
GetSAMIDToStr = (_GetSAMIDToStr)GetProcAddress(hDll, "GetSAMIDToStr");
if (UCommand1 == NULL || GetAddr == NULL || GetBegin == NULL || GetName == NULL || GetSex == NULL || GetSexGB == NULL || GetFolk == NULL || GetFolkGB == NULL || GetIDNum == NULL || GetDep == NULL || GetBirth == NULL || GetEnd == NULL || GetNewAddr == NULL || FID_GetEnName == NULL || FID_GetSex == NULL || FID_GetSexGB == NULL || FID_GetIDNum == NULL || FID_GetNationality == NULL || FID_GetChNationality == NULL || FID_GetChName == NULL || FID_GetBegin == NULL || FID_GetEnd == NULL || FID_GetBirth == NULL || FID_GetVersion == NULL || FID_GetDep == NULL || GetSAMIDToStr == NULL || GID_GetName == NULL || GID_GetSex == NULL || GID_GetSexGB == NULL || GID_GetBirth == NULL || GID_GetAddr == NULL || GID_GetIDNum == NULL || GID_GetDep == NULL || GID_GetBegin == NULL || GID_GetEnd == NULL || GID_GetPassPortId == NULL || GID_SignCount == NULL || GID_GetCardType == NULL)
{
return "-1^RdCard.dll函数获取失败";
}
return "";
}
/// <summary>
/// 去除两边空白字符
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
char* TrimStr(char* str)
{
char* head = str;
while (*head == ' ')
{
++head;
}
char* end = head + strlen(head) - 1;
while (*end == ' ')
{
--end;
}
*(end + 1) = 0;
strcpy(str, head);
return str;
}
/// <summary>
/// 读身份证方法
/// </summary>
/// <returns></returns>
const char* LISReadIDCard()
{
//初始化方法
const char* initret = InitFunc();
if (initret != "")
{
return initret;
}
//连接设备
unsigned char cmd = 0x41;
int para0 = 0, para1 = 8811, para2 = 9986;
int ret = UCommand1(&cmd, ¶0, ¶1, ¶2);
if (ret != 62171)
{
return "-1^设备连接失败，请检查设备是否插好！";
}
//验证卡（寻卡）
cmd = 0x43;
ret = UCommand1(&cmd, ¶0, ¶1, ¶2);
//读卡
cmd = 0x49;
ret = UCommand1(&cmd, ¶0, ¶1, ¶2);
if (ret != 62171 && ret != 62172 && ret != 62173 && ret != 62174)
{
return "-1^读卡失败！";
}
char NameEn[250] = { 0 };
char Name[250] = { 0 };
char Gender[250] = { 0 };
char Nation[250] = { 0 };
char BirthDate[250] = { 0 };
char Address[250] = { 0 };
char IDNumber[250] = { 0 };
char SignOrgan[250] = { 0 };
char BeginTerm[250] = { 0 };
char ValidTerm[250] = { 0 };
char NewAddress[250] = { 0 };
char PassPortId[250] = { 0 };
char SignCount[250] = { 0 };
char CardType[250] = { 0 };
char CardVersion[250] = { 0 };
switch (ret)
{
//二代证
case 62171:
{
GetName(Name);
GetSexGB(Gender);
GetFolkGB(Nation);
GetBirth(BirthDate);
GetAddr(Address);
GetIDNum(IDNumber);
GetDep(SignOrgan);
GetBegin(BeginTerm);
GetEnd(ValidTerm);
GetNewAddr(NewAddress);
break;
}
//二代证带指纹
case 62172:
{
GetName(Name);
GetSexGB(Gender);
GetFolkGB(Nation);
GetBirth(BirthDate);
GetAddr(Address);
GetIDNum(IDNumber);
GetDep(SignOrgan);
GetBegin(BeginTerm);
GetEnd(ValidTerm);
GetNewAddr(NewAddress);
break;
}
//外国人
case 62173:
{
FID_GetEnName(NameEn);
FID_GetChName(Name);
FID_GetSexGB(Gender);
if ((unsigned char)Gender[0] == 0xC4 && (unsigned char)Gender[1] == 0xD0)
{
strcat(Gender, " / M");
}
if ((unsigned char)Gender[0] == 0xC5 && (unsigned char)Gender[1] == 0xAE)
{
strcat(Gender, " / F");
}
char temp[256] = { 0 };
FID_GetChNationality(temp);
char temp1[256] = { 0 };
FID_GetNationality(temp1);
sprintf_s(Nation, "%s / %s", temp, temp1);
FID_GetBirth(BirthDate);
FID_GetIDNum(IDNumber);
strcpy(SignOrgan, "公安部 / Ministry of Public Security");
FID_GetBegin(BeginTerm);
FID_GetEnd(ValidTerm);
char version[32] = { 0 };
FID_GetVersion(version);
strcpy(CardVersion, version);
break;
}
//港澳台
case 62174:
{
GID_GetName(Name);
GID_GetSexGB(Gender);
GID_GetBirth(BirthDate);
GID_GetAddr(Address);
GID_GetIDNum(IDNumber);
GID_GetDep(SignOrgan);
GID_GetBegin(BeginTerm);
GID_GetEnd(ValidTerm);
GID_GetPassPortId(PassPortId);
GID_SignCount(SignCount);
GID_GetCardType(CardType);
break;
}
}
//关闭读卡器
cmd = 0x42;
UCommand1(&cmd, ¶0, ¶1, ¶2);
//组串返回
const char* retStr = (string(TrimStr(NameEn)) + "^" + string(TrimStr(Name)) + "^" + string(TrimStr(Gender)) + "^" + string(TrimStr(Nation)) + "^" + string(TrimStr(BirthDate)) + "^" + string(TrimStr(Address)) + "^" + string(TrimStr(IDNumber)) + "^" + string(TrimStr(SignOrgan)) + "^" + string(TrimStr(BeginTerm)) + "^" + string(TrimStr(ValidTerm)) + "^" + string(TrimStr(NewAddress)) + "^" + string(TrimStr(PassPortId)) + "^" + string(TrimStr(SignCount)) + "^" + string(TrimStr(CardType)) + "^" + string(TrimStr(CardVersion))).c_str();
return retStr;
}
/// <summary>
/// 以exe编译时候测试的主方法
/// </summary>
/// <returns></returns>
int main()
{
string info = LISReadIDCard();
cout << info << endl;
//停住
getchar();
return 0;
}该项目先编译成exe控制台测试可不可以读身份证。如果控制台好使了再编译成dll供C#调用。这里碰到一个坑是我以Debug模式编译的exe到没开发环境的电脑就算安装VC2015运行时还报错。后面宏伟兄发现我是Debug编译导致的。由于之前一直用C#写，C#的Debug编译没影响，所以不知道还要这出（这里要记得以Release模式编译额）。
然后碰到的问题就是开始C++包装的方法返回string。然后在C#用String接返回值程序会崩溃。
这里给C++方法返回改为const char*（即字符串指针），然后C#用IntPtr接指针，然后从指针取字符串数据。
C#包装如下：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using ReadCardService;
namespace HLJHYZYYReadCard
{
public class ReadCard : IReadCard
{
/// <summary>
/// 读身份证
/// </summary>
/// <returns></returns>
[DllImport("LISReadCard.dll")]
public static extern IntPtr LISReadIDCard();
/// <summary>
/// 读卡1-就诊卡，2-医保卡，3-身份证
/// </summary>
/// <param name="type">卡类型</param>
/// <returns></returns>
public string Read(string type)
{
IntPtr ret = LISReadIDCard();
string str = Marshal.PtrToStringAnsi(ret);
if (str.Substring(0, 3) == "-1^")
{
return "";
}
str = str.Replace("^","&");
return str;
}
}
}最终把接口实现配置到公共读卡程序里，让程序通过反射加载调用，程序再模拟条码枪，就把身份证读卡模拟为扫码操作了，界面只要实现回车事件处理即可。
最终刷一次就等于一次扫码
总算是把C++和C#结合用起来了，积累、成长、坚持
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