C++ HRESULT hr=exc.init（）； } KeyComd:：~KeyComd（） { } void KeyComd:：on_showbutton_clicked（） { ui.elements_listwidget->clear（）； 桌面元素。清

HRESULT hr=exc.init（）； } KeyComd:：~KeyComd（） { } void KeyComd:：on_showbutton_clicked（） { ui.elements_listwidget->clear（）； 桌面元素。清除（）； 此->打印密钥（）； } void KeyComd:：打印步骤（） { 打印密钥（exc.pUIAutomation，nullptr，0）； } void KeyComd:：打印子体密钥（IUIAutomation*pUIAutomation，IUIAutomationeElement*pParent，int缩进） { ///函数，该函数将10000个列表项附加到QListWidget中，QListWidget在我的QDialog中称为“elements\u listwidget”。 }

---

谢谢，我知道你在说什么，但我在这一行中发现一个错误

keyComd.moveToThread（&dialog\u thread）表示标识符对话框线程未定义。在mainwindow类中。您需要确保将名为
dialog\u thread
的
QThread
对象添加到类声明/
mainwindow.h
文件中（或者任何您想要调用的对象，只要对它的所有引用也使用相同的名称）。出现错误的原因是，在标头/声明中指定错误之前，该错误不存在。它不是一个可以通过其他方法访问的成员，如果您没有它的话。我将其添加到构造函数中，但忘记了注释，您需要记住将其移动到标题，否则它将不存在。我已经更新了代码以反映这一点。感谢这些信息，我在标题中声明了它，它运行时没有显示任何错误，但实际上我无法获得所需的行为，所需的行为是对话框的listwidget中的元素在最终用户面前实时加载，这就是我决定将该函数保留在单独线程中的原因。但是，当我尝试代码策略时，您显示了对话框屏幕冻结，并且在所有元素加载到dialogs qlistwidget中之前一直没有响应。当我在我的原始帖子中遵循代码时发生的行为是，元素在用户面前实时加载，我想这是因为我做了分离的事情；我有没有办法在你的代码中做类似的事情？我不确定我是否理解你的问题/你想做什么。你能重新措辞吗？
    void KeyComd::Print_Descendants_key(IUIAutomation* pUIAutomation, IUIAutomationElement* pParent, int indent)
{
    ///Function which appends 1000 list-items in a QListWidget called "elements_listwidget" in my QDialog.
}

#include "KeyComd.h"
#include "ui_KeyComd.h"
#include <QtCore>
#include <QtGui>
#include <vector> 
#include<QDebug>
#include "ExecutionContext.h"
#include "XMLParser.h"
#include "Logger.h"
#include "BlockCommand.h"
#include "UIAElementUtils.h"

ExecutionContext exc;
QStringList refreshed_elements;

KeyComd::KeyComd(QWidget *parent)
    : QDialog(parent)
{
    ui.setupUi(this);
    HRESULT hr = exc.init();    
}

KeyComd::~KeyComd()
{
}
void KeyComd::on_showbutton_clicked()
{
    ui.elements_listwidget->clear();
    desktop_elements.clear();

    std::thread thread3(&KeyComd::Print_step, this); // Here it calls a thread, because of this thread ,the execution of "Print_Descendants_key" function happens in a separate thread from main thread
    thread3.detach();
}

void KeyComd::Print_step()
{
    Print_Descendants_key(exc.pUIAutomation, nullptr, 0);
}

void KeyComd::Print_Descendants_key(IUIAutomation* pUIAutomation, IUIAutomationElement* pParent, int indent)
{
    ///Function which appends 10000 list-items in a QListWidget called "elements_listwidget" in my QDialog.
}

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "XMLParser.h"
#include "ExecutionContext.h"
#include "Logger.h"
#include "BlockCommand.h"
#include "UIAElementUtils.h"
#include <thread>
#include <iostream>
#include <QtWidgets/qapplication.h>
#include <QtCore>
#include <QtGui>
#include <sstream>
#include <QtWidgets/qmessagebox.h>
#include <QtWidgets/qlistwidget.h>
#include <string>
#include <string.h>
#include <cstring>
#include <chrono>
#include <QCloseEvent>
#include "Header.h"
#include <map>
#include <QtWidgets/qinputdialog.h>
#include <vector> 
#include "dragsupport.h"
#include "KeyComd.h"


ExecutionContext exContext;

using namespace std; 

MainWindow::MainWindow(QWidget* parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    populatemaps();
    ui->setupUi(this);
 
    HRESULT hr = CoInitializeEx(NULL, NULL);
    ExecutionContext exContext;
    hr = exContext.init();
}


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

void MainWindow::on_xml_scripts_textbox_itemDoubleClicked(QListWidgetItem* item)
{
        KeyComd keyComd;
        keyComd.exec();

        if (keyComd.result() == QDialog::Accepted) //when i click okay,the code inside this block gets executed
        {                   
           // Here when okay is clicked, i want to check if thread3 is still running and if it is then stop/terminate the thread3 which is in KeyComd.cpp file 
           
           ui->qlistwidget->additem("Car washing Job assigned to: Jack , height 5'10, weight 86, age 21");
        }
}

#include <QThread>
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "XMLParser.h"
#include "ExecutionContext.h"
#include "Logger.h"
#include "BlockCommand.h"
#include "UIAElementUtils.h"
#include <thread>
#include <iostream>
#include <QtWidgets/qapplication.h>
#include <QtCore>
#include <QtGui>
#include <sstream>
#include <QtWidgets/qmessagebox.h>
#include <QtWidgets/qlistwidget.h>
#include <string>
#include <string.h>
#include <cstring>
#include <chrono>
#include <QCloseEvent>
#include "Header.h"
#include <map>
#include <QtWidgets/qinputdialog.h>
#include <vector> 
#include "dragsupport.h"
#include "KeyComd.h"


ExecutionContext exContext;

using namespace std; 

MainWindow::MainWindow(QWidget* parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    populatemaps();
    ui->setupUi(this);
 
    HRESULT hr = CoInitializeEx(NULL, NULL);
    ExecutionContext exContext;
    hr = exContext.init();
 // QThread dialog_thread; move this to header
}


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

void MainWindow::on_xml_scripts_textbox_itemDoubleClicked(QListWidgetItem* item)
{
        KeyComd keyComd;
        keyComd.moveToThread(&dialog_thread);
        connect(&keyComd, &QDialog::Accepted, &dialog_thread, &QThread::quit);
        dialog_thread.start();
        keyComd.exec();        
        
        if (keyComd.result() == QDialog::Accepted) //when i click okay,the code inside this block gets executed
        {                   
           // Here when okay is clicked, i want to check if thread3 is still running and if it is then stop/terminate the thread3 which is in KeyComd.cpp file 
           ui->qlistwidget->additem("Car washing Job assigned to: Jack , height 5'10, weight 86, age 21");   
           emit keyComd.accepted();
        }
}

#include "KeyComd.h"
#include "ui_KeyComd.h"
#include <QtCore>
#include <QtGui>
#include <vector> 
#include<QDebug>
#include "ExecutionContext.h"
#include "XMLParser.h"
#include "Logger.h"
#include "BlockCommand.h"
#include "UIAElementUtils.h"

ExecutionContext exc;
QStringList refreshed_elements;

KeyComd::KeyComd(QWidget *parent)
    : QDialog(parent)
{
    ui.setupUi(this);
    HRESULT hr = exc.init();
}

KeyComd::~KeyComd()
{
}
void KeyComd::on_showbutton_clicked()
{
    ui.elements_listwidget->clear();
    desktop_elements.clear();
    this->Print_Descendants_key();
}

void KeyComd::Print_step()
{
    Print_Descendants_key(exc.pUIAutomation, nullptr, 0);
}

void KeyComd::Print_Descendants_key(IUIAutomation* pUIAutomation, IUIAutomationElement* pParent, int indent)
{
    ///Function which appends 10000 list-items in a QListWidget called "elements_listwidget" in my QDialog.
}