C++ QT开发，IC读写器程序

第一步：新建一个qt C++项目

在此需要注意，名称和路径不能有中文。

第二步：添加控件完成UI布局

IC读写器读写IC卡数据块

第三步：开始写代码

使设备发出滴滴响声

#define BLOCK0_EN   0x01
#define BLOCK1_EN   0x02
#define BLOCK2_EN   0x04
#define NEEDSERIAL  0x08
#define EXTERNKEY   0x10
#define NEEDHALT   0x20
 
//#define NEEDSERIAL  0x08
#define EXTERNKEY   0x10
 
 
//让读写器发出声音
typedef  unsigned char (*pcdbeep)(unsigned long xms);
 
//返回本读写器独一无二的设备编号
typedef  unsigned char (*pcdgetdevicenumber)(unsigned long devicenumber);
 
//轻松读卡
typedef unsigned char (*piccreadex)(unsigned char ctrlword,unsigned char *serial,unsigned char area,unsigned char keyA1B0,unsigned char *picckey,unsigned char *piccdata0_2);
 
//轻松写卡
typedef unsigned char (*piccwriteex)(unsigned char ctrlword,unsigned char *serial,unsigned char area, unsigned char keyA1B0,unsigned char *picckey,unsigned char *piccdata0_2);
 
//改单区密码
typedef unsigned char (*piccchangesinglekeyex)(unsigned char ctrlword,unsigned char *serial,unsigned char area,unsigned char keyA1B0,unsigned char *piccoldkey,unsigned char *piccdata);
 
//读出一块的数据，也就是16个字节
typedef unsigned char (*piccread)(unsigned char block,unsigned char *piccdata);
 
//检测输入数据是否为16进制数
static bool checkinput(QString inputstr){
    QString inputyes="0123456789abcdefABCDEF";
    for(int i=0;isetupUi(this);
}
 
MainWindow::~MainWindow()
{
    delete ui;
}
 
 
 
void MainWindow::on_pushButton_4_clicked()//让设备发出声响
{
    unsigned char result;
    QLibrary mylib("OUR_MIFARE.dll");
    if (!mylib.load())                //判断是否正确加载
    {
        QMessageBox::information(NULL, "提示", "动态库没装载！原因是动态库OUR_MIFARE.dll没放在生成exe文件相同目录下！");
        return;
    }
 
    pcdbeep mypcdbeep = (pcdbeep)mylib.resolve("pcdbeep");
    if (mypcdbeep == NULL)                   //是否成功连接上 idr_beep()函数
    {
        mylib.unload();
        QMessageBox::information(NULL, "提示", "请检查函数名是否正确！");
        return;
 
    }
 
 
    result = mypcdbeep(30);      //这里函数指针调用dll中的idr_beep（) 函数
    mylib.unload();
    if(result > 0)
    {
        if(result == 23)
        {
            QMessageBox::information(NULL, "提示", "机器没连上或者驱动没下载");
        }
        else
        {
            QMessageBox::information(NULL, "提示", "错误代码：" + QString::number(result));
        };
    }
    //qDebug()

	

	读卡功能

	
void MainWindow::on_pushButton_3_clicked()//轻松读卡
{
   unsigned char ctrlword;//控制字
   unsigned char serial[4];//可写数组
   unsigned char area;//读出的区号

   unsigned char keyA1B0;//AB密码认证
   unsigned char picckey[6];//存放卡密码的数组
   unsigned char piccdata0_2[48];//下标0~15存放作为读出的块0的数据，下标16~31存放作为读出的块1的数据，下标32~47存放作为读出的块2的数据

   unsigned char status;//返回
unsigned char status1;
   unsigned char result;
   QString piccdata[16];  //卡数据缓冲

  //unsigned char myareano = ui->lineEdit_5 ； '指定为第8区

   //以下控制字含义：读块0、块1、块2，仅读指定序列号的卡，需要每次指定密码
   if (ui->radioButton->isChecked())
   {

       ctrlword = BLOCK0_EN + BLOCK1_EN + BLOCK2_EN + EXTERNKEY;

   }
   else
   {//内部密码
       ctrlword = BLOCK0_EN + BLOCK1_EN + BLOCK2_EN;
   }



   area = ui->comboBox->currentText().toUShort();

   keyA1B0 = 1;//用A密码

   //qDebug()text().mid(0,2);
   //qDebug()text().mid(2,2);

   // qDebug()text().mid(2,2);
   // qDebug()text().mid(2,2);

   QString Key_str = ui->lineEdit->text().trimmed();


   if(Key_str.length() < 12)
   {
       QMessageBox::information(NULL, "提示", "密码长度不够12位！");
       ui-?>lineEdit->setFocus();
       return;

   }

   char c;
   for (int var = 0; var < 12; ++var)
   {
       c = Key_str.at(var).toLatin1();
       if(!((('0' <= c) && (c <= '9')) || (('A' <= c) && (c <= 'F')) || (('a' <= c) && (c <= 'f'))))
       {
         QMessageBox::information(NULL, "提示", "密码输入字符不正确！");
         //ui-?>lineEdit->setSelection(var,1);
         ui->lineEdit->setSelection(var,1);
         ui->lineEdit->setFocus();
         return;
       }
   }


   bool ok;
//    picckey[0]=(unsigned char)(Key_str.mid(0,2).toUShort(nullptr,16));
//    picckey[1] = Key_str.mid(2,2).toShort();
//    picckey[2] = Key_str.mid(4,2).toShort();
//    picckey[3] = Key_str.mid(6,2).toShort();
//    picckey[4] = Key_str.mid(8,2).toShort();
//    picckey[5] = Key_str.mid(10,2).toShort();

   for(int i = 0; i < 6; i++)
   {
       picckey[i]=QString(Key_str.mid(i*2,2)).toInt(&ok,16);
   }



   QLibrary mylib("OUR_MIFARE.dll");
   if (!mylib.load())                //判断是否正确加载
   {
       QMessageBox::information(NULL, "提示", "动态库没装载！原因是动态库OUR_MIFARE.dll没放在生成exe文件相同目录下！");
       return;
   }

   piccreadex mypiccreadex = (piccreadex)mylib.resolve("piccreadex");

   status = mypiccreadex(ctrlword,serial,area,keyA1B0,picckey,piccdata0_2);

   if(status == 0)
   {
       //qDebug()setText(QString::asprintf("%02X %02X %02X %02X %02X %02X %02X %02X %02X %02X",picckey[0],picckey[1],picckey[2],picckey[3],picckey[4],picckey[5],picckey[6],serial[1],serial[2],serial[3]));
       ui->lineEdit_2->setText(QString::asprintf("%02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X ",piccdata0_2[0],piccdata0_2[1],piccdata0_2[2],piccdata0_2[3],piccdata0_2[4],piccdata0_2[5],piccdata0_2[6],piccdata0_2[7],piccdata0_2[8],piccdata0_2[9],piccdata0_2[10],piccdata0_2[11],piccdata0_2[12],piccdata0_2[13],piccdata0_2[14],piccdata0_2[15]));
       ui->lineEdit_3->setText(QString::asprintf("%02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X ",piccdata0_2[16],piccdata0_2[17],piccdata0_2[18],piccdata0_2[19],piccdata0_2[20],piccdata0_2[21],piccdata0_2[22],piccdata0_2[23],piccdata0_2[24],piccdata0_2[25],piccdata0_2[26],piccdata0_2[27],piccdata0_2[28],piccdata0_2[29],piccdata0_2[30],piccdata0_2[31]));
       ui->lineEdit_4->setText(QString::asprintf("%02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X ",piccdata0_2[32],piccdata0_2[33],piccdata0_2[34],piccdata0_2[35],piccdata0_2[36],piccdata0_2[37],piccdata0_2[38],piccdata0_2[39],piccdata0_2[40],piccdata0_2[41],piccdata0_2[42],piccdata0_2[43],piccdata0_2[44],piccdata0_2[45],piccdata0_2[46],piccdata0_2[47]));


       piccread mypiccread = (piccread)mylib.resolve("piccread");
       //typedef unsigned char (*piccread)(unsigned char block,unsigned char *piccdata);

      status1 = piccread(area * 4 + 3,piccdata);

       pcdbeep mypcdbeep = (pcdbeep)mylib.resolve("pcdbeep");
       if (mypcdbeep == NULL)                   //是否成功连接上 idr_beep()函数
       {
         mylib.unload();
         QMessageBox::information(NULL, "提示", "请检查函数名是否正确！");
         return;

       }


       result = mypcdbeep(30);      //这里函数指针调用dll中的idr_beep（) 函数
       mylib.unload();



   }
   else if(status == 8)
   {
       ui->lineEdit_2->clear();
       ui->lineEdit_3->clear();
       ui->lineEdit_4->clear();
       QMessageBox::information(NULL, "提示", "寻卡错误，根本就没有卡在感应区");

   }
   else if(status == 12)
   {
       ui->lineEdit_2->clear();
       ui->lineEdit_3->clear();
       ui->lineEdit_4->clear();
       QMessageBox::information(NULL, "提示", "密码认证失败");

   }
   //qDebug()