QT Word文档控件QAxWidget C++退出

我们知道每次加载word控件，都会导致后台启动一个WINWORD.EXE

如何安全退出呢

1、一个最简单的例子

QT += core gui axcontainer

MainWindow.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QAxWidget>
#include <QAxObject>

QT_BEGIN_NAMESPACE
namespace Ui { class MainWindow; }
QT_END_NAMESPACE

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    MainWindow(QWidget *parent = nullptr);
    ~MainWindow();

private:
    Ui::MainWindow *ui;

    QAxWidget *m_ax = nullptr;
    QAxObject *m_wordApp = nullptr;
    QAxObject *m_document = nullptr;

    // QWidget interface
protected:
    virtual void resizeEvent(QResizeEvent *event) override;
};


#endif // MAINWINDOW_H

MainWindow.cpp

#include "MainWindow.h"
#include "ui_MainWindow.h"
#include <QAxObject>

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

    m_ax = new QAxWidget(this);
    m_ax->setControl("D:\\1.docx");

    m_wordApp = m_ax->querySubObject("Application");
    m_document = m_wordApp->querySubObject("Documents(int index)", 1);
    m_document->dynamicCall("Activate()");
}

MainWindow::~MainWindow()
{
    delete ui;

    m_ax->clear();
    m_document->dynamicCall("Close()");
    m_wordApp->dynamicCall("Quit()");
}

void MainWindow::resizeEvent(QResizeEvent *event)
{
    if (m_ax != nullptr)
    {
        QRect rc = rect();
        m_ax->setGeometry(0, 0, rc.width(), rc.height());
    }
}