C 身份證讀卡器開發

實際開發中，如果需要讀取身份證資訊，就涉及到身份證讀卡器開發了，最近專案中剛好用到，藉此與大家分享下開發過程。

身份證讀卡器市面上有很多種，華旭、中控、華大等等，其開發原理大同小異，本次以華旭讀卡器為例。

//身份證資訊結構

public class idcardinfo

public string name

public string ***

public datetime birthday

public string nation

public string idnumber

public string address

public string department

public string effectdata

public string expire

public string imagepath

}//介面，因可能涉及不同裝置，固都繼承此介面

public inte***ce iidcardreader

//裝置烈性

public enum enumidreaderdevice

//裝置工廠

public sealed class devicefactory

else if (config == "3")

else if (config == "4")

iidcardreader result = null;

switch (_readerdevice)

return result;

}//裝置類

public class idcardreaderhx : iidcardreader

idcardinfo idcardinfo = (idcardinfo)idcardinfo.bytestostruct(array, typeof(idcardinfo));

string text = idcardinfo.id.trim() + ".wlt";

bool flag = writefile(array2, (int)puiphmsglen, text);

idcardinfo.imagepath = idcardinfo.id.trim() + ".bmp";

if (!file.exists(idcardinfo.imagepath))

idcardinfo dcardinfo = new idcardinfo();

dcardinfo.cardno = idcardinfo.id.trim();

dcardinfo.name = idcardinfo.name.trim();

dcardinfo.*** = idcardinfo.***.trim();

dcardinfo.birthday = datetime.parseexact(idcardinfo.birth.trim(), "yyyymmdd", cultureinfo.currentculture);

dcardinfo.nation = idcardinfo.nation.trim();

dcardinfo.idnumber = idcardinfo.id.trim();

dcardinfo.address = idcardinfo.address.trim();

dcardinfo.department = idcardinfo.issue.trim();

dcardinfo.effectdata = idcardinfo.exper_sta.trim();

dcardinfo.expire = idcardinfo.exper_end.trim();

dcardinfo.imagepath = idcardinfo.imagepath;

return dcardinfo;

}private static bool writefile(byte buf, int pucaddmsglen, string fname)

catch

}[dllimport("sdtapi_x32/sdtapi.dll", callingconvention = callingconvention.stdcall, charset = charset.unicode)]

private static extern int sdt_openport(int iport);

[dllimport("sdtapi_x32/sdtapi.dll", callingconvention = callingconvention.stdcall, charset = charset.unicode, entrypoint = "sdt_openport")]

private static extern int sdt_closeport(int iport);

[dllimport("sdtapi_x32/sdtapi.dll", callingconvention = callingconvention.stdcall, charset = charset.unicode)]

private static extern int sdt_startfindidcard(int iport, byte pucmanainfo, int iifopen);

[dllimport("sdtapi_x32/sdtapi.dll", callingconvention = callingconvention.stdcall, charset = charset.unicode)]

private static extern int sdt_selectidcard(int iport, byte pucmanamsg, int iifopen);

[dllimport("sdtapi_x32/sdtapi.dll", callingconvention = callingconvention.stdcall, charset = charset.unicode)]

private static extern int sdt_readbasemsg(int iport, byte pucchmsg, ref uint puichmsglen, byte pucphmsg, ref uint puiphmsglen, int iifopen);

[dllimport("sdtapi_x32/wltrs.dll", callingconvention = callingconvention.stdcall, charset = charset.unicode)]

private static extern int getbmp(byte wlt_file, int intf);

//最後專案中讀取身份證實際資訊

public idcardinfo readcardinfo()

idcardinfo cardinfo = null;

tyriidcardreader cardreader = devicefactory.createidcardreader();

if (cardreader == null)

cardinfo = iidcardreader.readinfo();

return cardinfo;

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C 身份證讀卡器開發

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