Qt_C++读取RFID卡号支持Windows统信麒麟国产Linux系统

本示例使用的发卡器： Web浏览器JS网页可编程二次开发RFID读卡器Android Linux乐乐课堂-淘宝网 (taobao.com)

#include "mainwindow.h"
#include "./ui_mainwindow.h"
#include "QDebug"
#include "QLibrary"
#include "QMessageBox"

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//本示例可在windows、linux系统内编译、运行
//判断windows、linux系统，声明动态库函数----------------------------------------------------------------------------------------------------------------------------------------------
//让读写器发出声音
typedef  unsigned char (*idr_beep)(unsigned long xms);
#ifdef Q_OS_WIN
    idr_beep myidr_beep = (idr_beep)QLibrary("OUR_IDR.dll").resolve("idr_beep");
#else
    idr_beep myidr_beep = (idr_beep)QLibrary("./libOURIDR.so").resolve("idr_beep");
#endif

//获取发卡器唯一编号
typedef  unsigned char (*pcdgetdevicenumber)(unsigned char *devicenumber);
#ifdef Q_OS_WIN
    pcdgetdevicenumber mypcdgetdevicenumber = (pcdgetdevicenumber)QLibrary("OUR_IDR.dll").resolve("pcdgetdevicenumber");
#else
    pcdgetdevicenumber mypcdgetdevicenumber = (pcdgetdevicenumber)QLibrary("./libOURIDR.so").resolve("pcdgetdevicenumber");
#endif

//读取RFID卡号
typedef  unsigned char (*idr_read)(unsigned char *serial);
#ifdef Q_OS_WIN
    idr_read myidr_read = (idr_read)QLibrary("OUR_IDR.dll").resolve("idr_read");
#else
    idr_read myidr_read = (idr_read)QLibrary("./libOURIDR.so").resolve("idr_read");
#endif

//读取RFID卡号一次，如果卡一直在感应区第二次读取不返回卡号
typedef  unsigned char (*idr_read_once)(unsigned char *serial);
#ifdef Q_OS_WIN
    idr_read_once myidr_read_once = (idr_read_once)QLibrary("OUR_IDR.dll").resolve("idr_read_once");
#else
    idr_read_once myidr_read_once = (idr_read_once)QLibrary("./libOURIDR.so").resolve("idr_read_once");
#endif


MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);
}

MainWindow::~MainWindow()
{
    delete ui;
}


//检测动态库文件是否在运行目录内----------------------------------------------------------------------------------------------------------------------------------------------------------
static bool checkdllos(){
#ifdef Q_OS_WIN
    QLibrary mylib("OUR_IDR.dll");
    if (!mylib.load()){                //判断windows系统下，OUR_IDR.dll是否在运行目录内
        QMessageBox::information(NULL, "提示", "请将OUR_IDR.dll文件拷贝到生成exe文件相同目录下！");
        return false;
    }else{
        return true;
    }
#else
    QLibrary mylib("./libOURIDR.so");
    if (!mylib.load()){                //判断linux系统下，libOURIDR.so是否正运行目录内
        QMessageBox::information(NULL, "提示", "请将libOURIDR.so文件拷贝到生成的运行文件相同目录下！");
        return false;
    }else{return true;}
#endif
}


//显示返回的错误代码信息-----------------------------------------------------------------------------------------------------------------------------------------------------------------
static void disperrinf(unsigned char result){
    switch (result) {
    case 8:
        QMessageBox::critical(NULL, "提示", QString::asprintf("错误代码：%d", result)+"，未寻到卡，请重新拿开卡后再放到感应区！");
        break;
    case 23:
        QMessageBox::critical(NULL, "提示", QString::asprintf("错误代码：%d", result)+"，机器没连上或者动态库版本与读卡器型号不一致！");
        break;
    case 24:
        QMessageBox::critical(NULL, "提示", QString::asprintf("错误代码：%d", result)+"，通讯超时！");
        break;
    default:
        QMessageBox::critical(NULL, "提示", QString::asprintf("错误代码：%d", result)+"，未知的错误信息！");
        break;
    }
}

void MainWindow::on_pushButton_clicked()//让设备发出声
{
    if(!checkdllos()){return;}      //判断运行目录内动态库文件是否存在

    unsigned char status;
    if (myidr_beep != NULL){         //是否成功连接上 pcdbeep()函数
        status = myidr_beep(30);
        if(status==0){
        }
        else
        {
            disperrinf(status);
        }
    } else{
        QMessageBox::critical(NULL, "提示", "函数‘idr_beep’未正确载入，请查询DLL文件版本是否正确！");
    }
}


void MainWindow::on_pushButton_2_clicked() //读出设备全球唯一的设备编号，作为加密狗使用
{
    if(!checkdllos()){return;}        //判断运行目录内动态库文件是否存在

    unsigned char devicenumber[4];    //设备编号缓冲
    unsigned char status;             //函数返回状态
    if (mypcdgetdevicenumber != NULL){         //是否成功连接上 pcdgetdevicenumber()函数
        status = mypcdgetdevicenumber(devicenumber);
        if(status==0){
            if (myidr_beep != NULL){myidr_beep(30);}
            QMessageBox::information(NULL, "提示", QString::asprintf("设备编号：%03d-%03d-%03d-%03d", devicenumber[0],devicenumber[1],devicenumber[2],devicenumber[3]));
        }
        else
        {
            disperrinf(status);
        }
    }else{
        QMessageBox::critical(NULL, "提示", "函数‘pcdgetdevicenumber’未正确载入，请查询DLL文件版本是否正确！");
    }
}


void MainWindow::on_pushButton_3_clicked() //读卡
{
    if(!checkdllos()){return;}        //判断运行目录内动态库文件是否存在

    unsigned char serial[5];          //卡编号缓冲
    unsigned char status;             //函数返回状态
    if (myidr_read != NULL){          //是否成功连接上 idr_read()函数
        status = myidr_read(serial);
        if(status==0){
            if (myidr_beep != NULL){myidr_beep(30);}
            QString cardstr="16进制卡号:"+QString::asprintf("%02X%02X%02X%02X%02X",serial[0],serial[1],serial[2],serial[3],serial[4]);
            unsigned int card10=serial[1]*256*256*256+serial[2]*256*256+serial[3]*256+serial[4];
            cardstr=cardstr+"\n10进制卡号:"+QString::asprintf("%010d",card10);
            ui->textEdit->setText(cardstr);
        }
        else
        {
            disperrinf(status);
        }
    }else{
        QMessageBox::critical(NULL, "提示", "函数‘idr_read’未正确载入，请查询DLL文件版本是否正确！");
    }
}


void MainWindow::on_pushButton_4_clicked() //仅读一次，重新取放卡才能读到第二次[返回
{
    if(!checkdllos()){return;}        //判断运行目录内动态库文件是否存在

    unsigned char serial[5];          //卡编号缓冲
    unsigned char status;             //函数返回状态
    if (myidr_read_once != NULL){     //是否成功连接上 idr_read_once()函数
        status = myidr_read_once(serial);
        if(status==0){
            if (myidr_beep != NULL){myidr_beep(30);}
            QString cardstr="16进制卡号:"+QString::asprintf("%02X%02X%02X%02X%02X",serial[0],serial[1],serial[2],serial[3],serial[4]);
            unsigned int card10=serial[1]*256*256*256+serial[2]*256*256+serial[3]*256+serial[4];
            cardstr=cardstr+"\n10进制卡号:"+QString::asprintf("%010d",card10);
            ui->textEdit->setText(cardstr);
        }
        else
        {
            disperrinf(status);
        }
    }else{
        QMessageBox::critical(NULL, "提示", "函数‘idr_read_once’未正确载入，请查询DLL文件版本是否正确！");
    }
}