金橙子打标软件学习流程

学习C++基本语法
C++教程从零到一
学习Qt
Qt从入门到实战
学习动态调用动态链接库，观看EZCAD2开发者手册
3.1 调用Windows API函数LoadLibrary()动态加载DLL；
3.2 调用Windows API函数GetProcAddress()取得将要调用的DLL中函数的指
针；用函数指针调用DLL中函数完成相应功能；
3.3 在程序结束时或不再使用DLL中函数时，调用Windows API函数
FreeLibrary()释放动态链接库。
注意：调用MarkEzd.dll的程序必须放在ezcad2.exe同一个目录下，否则MarkEzd.dll将无法正常工作；而且ezcad2.exe在运行的时候MarkEzd.dll将无法正常使用，所以在使用MarkEzd.dll时必须关闭ezcad2.exe。
首先要把MarkEzdDll.h文件加入头文件

再创建lmc1.h和lmc1.cpp文件
lmc1.h中声明变量

#pragma once
#include "MarkEzdDll.h"class LMC1
{public:LMC1();~LMC1();HINSTANCE m_hEzdDLL;LMC1_INITIAL       lmc1_Initial;LMC1_INITIAL2       lmc1_Initial2;LMC1_CLOSE         lmc1_Close;LMC1_STOPMARK      lmc1_StopMark;LMC1_LOADEZDFILE   lmc1_LoadEzdFile;LMC1_MARK          lmc1_Mark;LMC1_MARKENTITY    lmc1_MarkEntity;LMC1_ISMARKING      lmc1_IsMarking;LMC1_SETBARCODEPARAM  lmc1_SetBarcodeParam;LMC1_RESET  lmc1_Reset;LMC1_AXISMOVETOPULSE  lmc1_AxisMoveToPulse;LMC1_GETAXISCOORPULSE  lmc1_GetAxisCoorPulse;LMC1_SETDEVCFG2  lmc1_SetDevCfg2;LMC1_GETENTITYCOUNT  lmc1_GetEntityCount;LMC1_REDLIGHTMARK  lmc1_RedLightMark;LMC1_GETBARCODEPARAM   lmc1_GetBarcodeParam;LMC1_READPORT  lmc1_ReadPort;LMC1_GETOUTPORT lmc1_GetOutPort;LMC1_WRITEPORT lmc1_WritePort;LMC1_UNGROUPENT2 lmc1_UnGroupEnt2;LMC1_UNGROUPENT lmc1_UnGroupEnt;LMC1_SETDEVCFG     lmc1_SetDevCfg;LMC1_GROUPENT2    lmc1_GroupEnt2;LMC1_GETPENPARAM   lmc1_GetPenParam;LMC1_SETPENPARAM   lmc1_SetPenParam;LMC1_CLEARENTLIB   lmc1_ClearEntLib;LMC1_ADDTEXTTOLIB  lmc1_AddTextToLib;LMC1_ADDFILETOLIB  lmc1_AddFileToLib;LMC1_ADDCURVETOLIB  lmc1_AddCurveToLib;LMC1_ADDCIRCLETOLIB  lmc1_AddCircleToLib;LMC1_ADDBARCODETOLIB   lmc1_AddBarCodeToLib;LMC1_CHANGETEXTBYNAME  lmc1_ChangeTextByName;LMC1_AXISMOVETO        lmc1_AxisMoveTo;LMC1_AXISCORRECTORIGIN lmc1_AxisCorrectOrigin;LMC1_GETAXISCOOR       lmc1_GetAxisCoor;LMC1_SAVEENTLIBTOFILE  lmc1_SaveEntLibToFile;LMC1_GETALLFONTRECORD  lmc1_GetAllFontRecord;LMC1_MOVEENT lmc1_MoveEnt;
};

lmc1.cpp中获取句柄

#include "lmc1.h"
#include <iostream>
using namespace std;
LMC1::LMC1()
{//防止野指针m_hEzdDLL = NULL;//赋予句柄m_hEzdDLL = LoadLibrary(_T("MarkEzd.dll"));//获取句柄出错检验if (m_hEzdDLL == NULL){cout << "找不到MarkEzd.dll文件" << endl;}else{lmc1_Initial = (LMC1_INITIAL)GetProcAddress(m_hEzdDLL, "lmc1_Initial");if (lmc1_Initial == NULL){cout << "lmc1_Initial接口加载失败" << endl;}lmc1_Initial2 = (LMC1_INITIAL2)GetProcAddress(m_hEzdDLL, "lmc1_Initial2");if (lmc1_Initial == NULL){cout << "lmc1_Initial2接口加载失败" << endl;}lmc1_Close = (LMC1_CLOSE)GetProcAddress(m_hEzdDLL, "lmc1_Close");if (lmc1_Initial == NULL){cout << "lmc1_Initial2接口加载失败" << endl;}lmc1_SetDevCfg = (LMC1_SETDEVCFG)GetProcAddress(m_hEzdDLL, "lmc1_SetDevCfg");if (lmc1_Initial == NULL){cout << "lmc1_SetDevCfg接口加载失败" << endl;}lmc1_Mark = (LMC1_MARK)GetProcAddress(m_hEzdDLL, "lmc1_Mark");if (lmc1_Initial == NULL){cout << "lmc1_Mark接口加载失败" << endl;}lmc1_IsMarking = (LMC1_ISMARKING)GetProcAddress(m_hEzdDLL, "lmc1_IsMarking");if (lmc1_Initial == NULL){cout << "lmc1_IsMarking接口加载失败" << endl;}lmc1_StopMark = (LMC1_STOPMARK)GetProcAddress(m_hEzdDLL, "lmc1_StopMark");if (lmc1_Initial == NULL){cout << "lmc1_StopMark接口加载失败" << endl;}lmc1_SetBarcodeParam = (LMC1_SETBARCODEPARAM)GetProcAddress(m_hEzdDLL, "lmc1_SetBarcodeParam");if (lmc1_SetBarcodeParam == NULL){cout << "lmc1_SetBarcodeParam接口加载失败" << endl;}lmc1_LoadEzdFile = (LMC1_LOADEZDFILE)GetProcAddress(m_hEzdDLL, "lmc1_LoadEzdFile");if (lmc1_LoadEzdFile == NULL){cout << "lmc1_LoadEzdFile接口加载失败" << endl;}lmc1_SaveEntLibToFile = (LMC1_SAVEENTLIBTOFILE)GetProcAddress(m_hEzdDLL, "lmc1_SaveEntLibToFile");if (lmc1_SaveEntLibToFile == NULL){cout << "lmc1_SaveEntLibToFile接口加载失败" << endl;}lmc1_SetPenParam = (LMC1_SETPENPARAM)GetProcAddress(m_hEzdDLL, "lmc1_SetPenParam");if (lmc1_SetPenParam == NULL){cout << "lmc1_SetPenParam接口加载失败" << endl;}lmc1_GetPenParam = (LMC1_GETPENPARAM)GetProcAddress(m_hEzdDLL, "lmc1_GetPenParam");if (lmc1_GetPenParam == NULL){cout << "lmc1_GetPenParam接口加载失败" << endl;}lmc1_ReadPort = (LMC1_READPORT)GetProcAddress(m_hEzdDLL, "lmc1_ReadPort");if (lmc1_ReadPort == NULL){cout << "lmc1_ReadPort接口加载失败" << endl;}lmc1_GetOutPort = (LMC1_GETOUTPORT)GetProcAddress(m_hEzdDLL, "lmc1_GetOutPort");if (lmc1_GetOutPort == NULL){cout << "lmc1_GetOutPort接口加载失败" << endl;}lmc1_WritePort = (LMC1_WRITEPORT)GetProcAddress(m_hEzdDLL, "lmc1_WritePort");if (lmc1_WritePort == NULL){cout << "lmc1_WritePort接口加载失败" << endl;}lmc1_Reset = (LMC1_RESET)GetProcAddress(m_hEzdDLL, "lmc1_Reset");if (lmc1_Reset == NULL){cout << "lmc1_Reset接口加载失败" << endl;}lmc1_AxisCorrectOrigin = (LMC1_AXISCORRECTORIGIN)GetProcAddress(m_hEzdDLL, "lmc1_AxisCorrectOrigin");if (lmc1_AxisCorrectOrigin == NULL){cout << "lmc1_AxisCorrectOrigin接口加载失败" << endl;}lmc1_AxisMoveTo = (LMC1_AXISMOVETO)GetProcAddress(m_hEzdDLL, "lmc1_AxisMoveTo");if (lmc1_AxisCorrectOrigin == NULL){cout << "lmc1_AxisMoveTo接口加载失败" << endl;}lmc1_AxisMoveToPulse = (LMC1_AXISMOVETOPULSE)GetProcAddress(m_hEzdDLL, "lmc1_AxisMoveToPulse");if (lmc1_AxisMoveToPulse == NULL){cout << "lmc1_AxisMoveToPulse接口加载失败" << endl;}lmc1_GetAxisCoor = (LMC1_GETAXISCOOR)GetProcAddress(m_hEzdDLL, "lmc1_GetAxisCoor");if (lmc1_GetAxisCoor == NULL){cout << "lmc1_GetAxisCoor接口加载失败" << endl;}lmc1_GetAxisCoorPulse = (LMC1_GETAXISCOORPULSE)GetProcAddress(m_hEzdDLL, "lmc1_GetAxisCoorPulse");if (lmc1_GetAxisCoor == NULL){cout << "lmc1_GetAxisCoor接口加载失败" << endl;}lmc1_SetDevCfg2 = (LMC1_SETDEVCFG2)GetProcAddress(m_hEzdDLL, "lmc1_SetDevCfg2");if (lmc1_GetAxisCoor == NULL){cout << "lmc1_SetDevCfg2接口加载失败" << endl;}lmc1_GetEntityCount = (LMC1_GETENTITYCOUNT)GetProcAddress(m_hEzdDLL, "lmc1_GetEntityCount");if (lmc1_GetAxisCoor == NULL){cout << "lmc1_GetEntityCount接口加载失败" << endl;}lmc1_RedLightMark = (LMC1_REDLIGHTMARK)GetProcAddress(m_hEzdDLL, "lmc1_RedLightMark");if (lmc1_RedLightMark == NULL){cout << "lmc1_RedLightMark接口加载失败" << endl;}lmc1_ClearEntLib = (LMC1_CLEARENTLIB)GetProcAddress(m_hEzdDLL, "lmc1_ClearEntLib");if (lmc1_ClearEntLib == NULL){cout << "lmc1_ClearEntLib接口加载失败" << endl;}lmc1_AddBarCodeToLib = (LMC1_ADDBARCODETOLIB)GetProcAddress(m_hEzdDLL, "lmc1_AddBarCodeToLib");if (lmc1_AddBarCodeToLib == NULL){cout << "lmc1_AddBarCodeToLib接口加载失败" << endl;}lmc1_GetBarcodeParam = (LMC1_GETBARCODEPARAM)GetProcAddress(m_hEzdDLL, "lmc1_GetBarcodeParam");if (lmc1_GetBarcodeParam == NULL){cout << "lmc1_GetBarcodeParam接口加载失败" << endl;}lmc1_ChangeTextByName = (LMC1_CHANGETEXTBYNAME)GetProcAddress(m_hEzdDLL, "lmc1_ChangeTextByName");if (lmc1_ChangeTextByName == NULL){cout << "lmc1_ChangeTextByName接口加载失败" << endl;}}}LMC1::~LMC1()
{FreeLibrary(m_hEzdDLL);
}

最后在主文件中调用

//示例#include <iostream>
#include <string>
#include "MarkEzdDll.h"
#include <tchar.h>
#include <atlstr.h>
#include "lmc1.h"
using namespace std;//继承于LMC1类
class TestDLL:LMC1 {public:void ezd_text();
};
void TestDLL::ezd_text() {//获得MarkEzd.dll句柄m_hEzdDLL = LoadLibrary(_T("MarkEzd.dll"));//输出调用是否出错cout << m_hEzdDLL << endl;//EzCad2.exe和dll以及配置文件都要在一个目录下//定义一个变量存储这个目录TCHAR strEzCadPath[256];//传入目录参数TCHAR _strEzCadPath[256] = _T("C:\\Users\\ADVANTECH\\Desktop\\build-QRcode-Desktop_Qt_5_14_2_MSVC2017_32bit-Debug\\debug");//调用初始化函数并输出返回值//返回值为错误号，具体定义见MarkEzdDll.h文件int nErr = lmc1_Initial2(_strEzCadPath, 0);//初始化lmc1控制卡cout << nErr << endl;//调用加载函数句柄lmc1_LoadEzdFile = (LMC1_LOADEZDFILE)GetProcAddress(m_hEzdDLL, "lmc1_LoadEzdFile");//传入打标ezd文件位置TCHAR szFile[256] = _T("C:\\Users\\ADVANTECH\\Desktop\\15-CODE.ezd");//调用加载函数加载文件并输出返回值nErr = lmc1_LoadEzdFile(szFile);cout << nErr << endl;//调用标刻函数句柄lmc1_Mark = (LMC1_MARK)GetProcAddress(m_hEzdDLL, "lmc1_Mark");cout << lmc1_Mark << endl;//调用标刻函数并输出返回值nErr = lmc1_Mark(0);cout << nErr << endl;//调用关闭函数句柄lmc1_Close = (LMC1_CLOSE)GetProcAddress(m_hEzdDLL, "lmc1_Close");//关闭并输出返回值nErr = lmc1_Close();cout << nErr << endl;//释放句柄FreeLibrary(m_hEzdDLL);
}int main(){//在主函数中调用TestDLL td;td.ezd_text();return 0;
}

以上为一个简单的动态调用动态链接库的流程，具体开发要根据实际需求来编写。
4. 学习Qt创建TCP通信
Qt创建TCP通信
这是一个比较长的课程，只看其中创建TCP通信的几节课就可以，不过若是对MFC，数据库感兴趣也可以观看。
有需要要学习modbus-TCP通信的话，可以阅读《MODBUS软件开发实战指南》

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