c/c++语言开发共享串口调试助手–Qt

#include "mainwindow.h"  #include <qapplication>    int main(int argc, char *argv[])  {      qapplication a(argc, argv);      mainwindow w;      w.show();        return a.exec();  }

#ifndef mainwindow_h  #define mainwindow_h    #include <qmainwindow>  #include <qserialport>  #include <qtimer>    namespace ui {  class mainwindow;  }    class mainwindow : public qmainwindow  {      q_object    public:      explicit mainwindow(qwidget *parent = nullptr);      ~mainwindow();      /*       * 功能：获取电脑中串口的端口       * 参数：无       * 返回值：无       */      void get_serial_port(void);      /*       * 功能：当串口有数据的时候执行       * 参数：无       * 返回值：无       */      void readdata(void);      /*       * 功能：每个3s执行的任务       * 参数：无       * 返回值：无       */      void mythread(void);    private slots:      /*       * 功能：点击pushbutton按钮功能       * 参数：无       * 返回值：无       */      void on_pushbutton_clicked();      /*       * 功能：点击清空按钮功能，清空显示区的显示       * 参数：无       * 返回值：无       */      void on_pushbutton_2_clicked();        void on_pushbutton_3_clicked();        void on_pushbutton_4_clicked();        void on_pushbutton_5_clicked();    private:      ui::mainwindow  *ui;      //串口类指针      qserialport     *serial;      //时间类指针      qtimer          *time;  };    #endif // mainwindow_h

#include "mainwindow.h"  #include "ui_mainwindow.h"  #include "windows.h"  #include "qvector"  #include "qdebug"  #include "stdio.h"  #include "qmessagebox"  #include <stdlib.h>    #define max_key_length 255  #define max_value_name 16383    /*   * 功能：读取注册表下的子项   * 参数：hkey:注册表的根   *      lpsubkey:注册表根下的路径   *      retarray:返回要查找的路径下的值的数组   * 返回值：无   */  static void get_regedit(hkey hkey,lpcstr lpsubkey,qvector<qstring> &retarray);    mainwindow::mainwindow(qwidget *parent) :      qmainwindow(parent),      ui(new ui::mainwindow)  {      ui->setupui(this);      //时间类初始化      time = new qtimer(this);      connect(time,&qtimer::timeout,this,&mainwindow::mythread);      time->start(3000);      //状态栏显示      ui->statusbar->showmessage("程序运行中...");      //初始化串口的显示      this->get_serial_port();      qstringlist temp;      //波特率的显示      temp << "9600" << "4800" << "19200" << "38400" << "57600" << "115200";      ui->combobox_2->additems(temp);      //数据位的显示      temp.clear();      temp << "8" << "5" << "6" << "7";      ui->combobox_3->additems(temp);      //奇偶检验位的显示      temp.clear();      temp << "0" << "1" << "2";      ui->combobox_4->additems(temp);      //停止位的显示      temp.clear();      temp << "1" << "1.5" << "2";      ui->combobox_5->additems(temp);        this->serial = new qserialport(nullptr);  }    mainwindow::~mainwindow()  {      delete ui;  }  /*   * 功能：获取电脑中串口的端口   * 参数：无   * 返回值：无   */  void mainwindow::get_serial_port()  {      qvector<qstring> retarray;      ui->combobox->clear();      get_regedit(hkey_local_machine,                  "hardware\devicemap\serialcomm",                  retarray);        qdebug() << retarray.size();        qvector<qstring>::iterator iter;      for (iter=retarray.begin();iter!=retarray.end();iter++)      {          qdebug() <<  *iter << "";          ui->combobox->additem(*iter);      }  }  /*   * 功能：点击pushbutton按钮功能,打开串口   * 参数：无   * 返回值：无   */  void mainwindow::on_pushbutton_clicked()  {      if(!serial->isopen())      {          qdebug() << ui->combobox->currenttext();          //设置串口的端口名称          serial->setportname(ui->combobox->currenttext());          //toint：将字符串转换为数字          //设置串口的波特率          serial->setbaudrate((ui->combobox_2->currenttext()).toint(nullptr,10));          //设置串口的数据位          serial->setdatabits((qserialport::databits((ui->combobox_3->currenttext()).toint(nullptr,10))));          //设置串口的奇偶校验位          serial->setparity(qserialport::parity((ui->combobox_4->currenttext()).toint(nullptr,10)));          //设置串口的停止位          serial->setstopbits(qserialport::stopbits((ui->combobox_5->currenttext()).toint(nullptr,10)));          //设置串口的流          serial->setflowcontrol(qserialport::noflowcontrol);          bool isserial = serial->open(qiodevice::readwrite);          if(!isserial)          {              qdebug() << "串口打开错误！";              return;          }          //创建一个信号与槽，使得串口有数据可以读取的时候可以执行readdata()函数          connect(serial,&qserialport::readyread,this,&mainwindow::readdata);          ui->pushbutton->settext("已启动");      }      else      {          ui->pushbutton->settext("启动");          serial->close();      }    }    /*   * 功能：读取注册表下的子项   * 参数：hkey:注册表的根   *      lpsubkey:注册表根下的路径   *      retarray:返回要查找的路径下的值的数组   * 返回值：无   */  static void get_regedit(hkey hkey,lpcstr lpsubkey,qvector<qstring> &retarray)  {      hkey  phkey = nullptr;      bool issuccess = false;      /*       * 功能：打开注册表，返回值为是否打开成功       */      issuccess = regopenkeya(hkey,lpsubkey,&phkey);      if(issuccess != error_success)      {          qdebug() << "注册表打开失败！";          return;      }      qdebug() << "注册表打开成功！";      /*       * 功能：读取注册表下的子项       */      dword i =0;      lstatus retcode = error_success;        char achvalue[max_value_name];      dword cchvalue = max_value_name;      byte data[max_value_name];      dword cbdata = max_value_name;      do      {          cchvalue = max_value_name;          cbdata = max_value_name;          achvalue[0] = '';          data[0] = '';          qstring temp = "";          retcode = regenumvaluea(phkey, i,achvalue,&cchvalue,nullptr,nullptr,data,&cbdata);            if (retcode == error_success && achvalue[0] != '')          {              qdebug() << i++ << achvalue << " ";              byte j = 0;              while(data[j] != '')                  temp += (char)(data[j++]);              qdebug() << temp;              retarray.append(temp);          }      }while(achvalue[0] != '');      /*       * 功能：关闭注册表，返回值为是否打开成功       */      issuccess = regclosekey(phkey);      if(issuccess != error_success)      {          qdebug() << "注册表关闭失败！";          return;      }      qdebug() << "注册表关闭成功！";      return;  }    /*   * 功能：点击清空按钮功能，清空显示区的显示   * 参数：无   * 返回值：无   */  void mainwindow::on_pushbutton_2_clicked()  {      ui->textbrowser->settext("");  }    /*   * 功能：当串口有数据的时候执行,在显示区域显示   *      串口接受到的值   * 参数：无   * 返回值：无   */  void mainwindow::readdata(void)  {      //是否选择了该按钮,选择以16进制进行输出      if(ui->radiobutton->ischecked())      {          qbytearray temp = serial->readall().tohex();          for(int i = 0;i < temp.length();++i)          {              //在16进制开始加入"0x"              if(i % 2 == 0)                  ui->textbrowser->insertplaintext("0x");              ui->textbrowser->insertplaintext((qstring)temp.at(i));              //在16进制结束加上空格" "              if(i % 2 == 1)                  ui->textbrowser->insertplaintext(" ");          }      }      //没有选择则按照ascii码输出      else          ui->textbrowser->insertplaintext(serial->readall());      ui->textbrowser->movecursor(qtextcursor::end);  }  /*   * 功能：向串口中发送数据   * 参数：无   * 返回值：无   */  void mainwindow::on_pushbutton_3_clicked()  {      //判断串口是否处于打开状态      if(serial->isopen())      {          qbytearray temp = ui->textedit->toplaintext().toutf8();          qdebug() << temp;          serial->write(temp);      }      else      {          //串口没有连接的时候发送数据就会出错          qmessagebox messagebox(qmessagebox::icon(2),"警告","串口未连接",qmessagebox::yes,nullptr);          messagebox.exec();      }  }  /*   * 功能：清空发送区   * 参数：无   * 返回值：无   */  void mainwindow::on_pushbutton_4_clicked()  {      ui->textedit->clear();  }  /*   * 功能：退出程序   * 参数：无   * 返回值：无   */  void mainwindow::on_pushbutton_5_clicked()  {      if(serial->isopen())          serial->close();      this->close();  }  /*   * 功能：每个3s执行的任务,判断端口和串口是否打开   * 参数：无   * 返回值：无   */  void mainwindow::mythread()  {      qdebug() << "线程ok ";      if(serial->isreadable())          ui->pushbutton->settext("已启动");      else          ui->pushbutton->settext("启动");      this->get_serial_port();  }

<?xml version="1.0" encoding="utf-8"?>  <ui version="4.0">   <class>mainwindow</class>   <widget class="qmainwindow" name="mainwindow">    <property name="geometry">     <rect>      <x>0</x>      <y>0</y>      <width>768</width>      <height>500</height>     </rect>    </property>    <property name="minimumsize">     <size>      <width>768</width>      <height>500</height>     </size>    </property>    <property name="maximumsize">     <size>      <width>768</width>      <height>500</height>     </size>    </property>    <property name="windowtitle">     <string>串口助手</string>    </property>    <widget class="qwidget" name="centralwidget">     <widget class="qpushbutton" name="pushbutton">      <property name="geometry">       <rect>        <x>20</x>        <y>230</y>        <width>93</width>        <height>28</height>       </rect>      </property>      <property name="text">       <string>启动</string>      </property>     </widget>     <widget class="qpushbutton" name="pushbutton_2">      <property name="geometry">       <rect>        <x>120</x>        <y>290</y>        <width>93</width>        <height>28</height>       </rect>      </property>      <property name="text">       <string>清空显示</string>      </property>     </widget>     <widget class="qcombobox" name="combobox">      <property name="geometry">       <rect>        <x>120</x>        <y>50</y>        <width>87</width>        <height>22</height>       </rect>      </property>     </widget>     <widget class="qcombobox" name="combobox_2">      <property name="geometry">       <rect>        <x>120</x>        <y>80</y>        <width>87</width>        <height>22</height>       </rect>      </property>     </widget>     <widget class="qcombobox" name="combobox_3">      <property name="geometry">       <rect>        <x>120</x>        <y>110</y>        <width>87</width>        <height>22</height>       </rect>      </property>     </widget>     <widget class="qcombobox" name="combobox_4">      <property name="geometry">       <rect>        <x>120</x>        <y>140</y>        <width>87</width>        <height>22</height>       </rect>      </property>     </widget>     <widget class="qcombobox" name="combobox_5">      <property name="geometry">       <rect>        <x>120</x>        <y>170</y>        <width>87</width>        <height>22</height>       </rect>      </property>     </widget>     <widget class="qradiobutton" name="radiobutton">      <property name="geometry">       <rect>        <x>0</x>        <y>295</y>        <width>115</width>        <height>19</height>       </rect>      </property>      <property name="text">       <string>以16进制输出</string>      </property>     </widget>     <widget class="qpushbutton" name="pushbutton_3">      <property name="geometry">       <rect>        <x>120</x>        <y>360</y>        <width>93</width>        <height>28</height>       </rect>      </property>      <property name="text">       <string>发送</string>      </property>     </widget>     <widget class="qgroupbox" name="groupbox">      <property name="geometry">       <rect>        <x>230</x>        <y>4</y>        <width>551</width>        <height>331</height>       </rect>      </property>      <property name="title">       <string>接受显示区</string>      </property>      <widget class="qtextbrowser" name="textbrowser">       <property name="geometry">        <rect>         <x>10</x>         <y>20</y>         <width>521</width>         <height>301</height>        </rect>       </property>      </widget>     </widget>     <widget class="qgroupbox" name="groupbox_2">      <property name="geometry">       <rect>        <x>230</x>        <y>340</y>        <width>541</width>        <height>121</height>       </rect>      </property>      <property name="title">       <string>发送显示区</string>      </property>      <widget class="qtextedit" name="textedit">       <property name="geometry">        <rect>         <x>10</x>         <y>20</y>         <width>521</width>         <height>91</height>        </rect>       </property>      </widget>     </widget>     <widget class="qpushbutton" name="pushbutton_4">      <property name="geometry">       <rect>        <x>120</x>        <y>400</y>        <width>93</width>        <height>28</height>       </rect>      </property>      <property name="text">       <string>清空发送</string>      </property>     </widget>     <widget class="qlabel" name="label">      <property name="geometry">       <rect>        <x>20</x>        <y>50</y>        <width>71</width>        <height>21</height>       </rect>      </property>      <property name="text">       <string>串口端口</string>      </property>     </widget>     <widget class="qlabel" name="label_2">      <property name="geometry">       <rect>        <x>20</x>        <y>83</y>        <width>80</width>        <height>15</height>       </rect>      </property>      <property name="text">       <string>串口波特率</string>      </property>     </widget>     <widget class="qlabel" name="label_3">      <property name="geometry">       <rect>        <x>20</x>        <y>113</y>        <width>80</width>        <height>15</height>       </rect>      </property>      <property name="text">       <string>串口数据位</string>      </property>     </widget>     <widget class="qlabel" name="label_4">      <property name="geometry">       <rect>        <x>20</x>        <y>143</y>        <width>80</width>        <height>15</height>       </rect>      </property>      <property name="text">       <string>串口校验位</string>      </property>     </widget>     <widget class="qlabel" name="label_5">      <property name="geometry">       <rect>        <x>20</x>        <y>173</y>        <width>80</width>        <height>15</height>       </rect>      </property>      <property name="text">       <string>串口停止位</string>      </property>     </widget>     <widget class="qlabel" name="label_6">      <property name="geometry">       <rect>        <x>25</x>        <y>5</y>        <width>191</width>        <height>41</height>       </rect>      </property>      <property name="font">       <font>        <family>楷体</family>        <pointsize>12</pointsize>       </font>      </property>      <property name="text">       <string>欢迎使用调试助手</string>      </property>     </widget>     <widget class="qpushbutton" name="pushbutton_5">      <property name="geometry">       <rect>        <x>120</x>        <y>230</y>        <width>93</width>        <height>28</height>       </rect>      </property>      <property name="text">       <string>退出</string>      </property>     </widget>    </widget>    <widget class="qstatusbar" name="statusbar"/>    <widget class="qmenubar" name="menubar">     <property name="geometry">      <rect>       <x>0</x>       <y>0</y>       <width>768</width>       <height>26</height>      </rect>     </property>     <widget class="qmenu" name="menu">      <property name="title">       <string>菜单</string>      </property>      <addaction name="separator"/>      <addaction name="actiondsa"/>     </widget>     <widget class="qmenu" name="menu_2">      <property name="title">       <string>帮助</string>      </property>     </widget>     <addaction name="menu"/>     <addaction name="menu_2"/>    </widget>    <widget class="qtoolbar" name="toolbar">     <property name="windowtitle">      <string>toolbar</string>     </property>     <attribute name="toolbararea">      <enum>toptoolbararea</enum>     </attribute>     <attribute name="toolbarbreak">      <bool>false</bool>     </attribute>    </widget>    <action name="actiondsa">     <property name="text">      <string>退出</string>     </property>    </action>   </widget>   <layoutdefault spacing="6" margin="11"/>   <resources/>   <connections/>  </ui>