Qt 应用封装成ActiveX 控件

一，需求

将Qt 窗口封装成ActiveX 控件 供其它程序使用。

二，环境搭建

（1），QtCreator 新建不了active控件的工程，需要自己按照需要编写工程。

（2），vs 安装好助手后，自带了工程模板，但是我机器上编译会出错，暂时没有解决。

三，使用QtCreator 编写activeX控件

 (1).pro文件

QT_CI_JENKINS_HOME=$$(JENKINS_HOME)
!isEmpty(QT_CI_JENKINS_HOME) {
    message("Qt CI environment detected, suppressing example registration")
    CONFIG += qaxserver_no_postlink
}

TEMPLATE = app
CONFIG += warn_off

QT       += core gui concurrent  axserver

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

CONFIG += c++17

# You can make your code fail to compile if it uses deprecated APIs.
# In order to do so, uncomment the following line.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

SOURCES += \
    comm/boxinteractorstyle.cpp \
    comm/region.cpp \
    comm/selectinteractorstyle.cpp \
    comm/vtkpickercallback.cpp \
    main.cpp \
    widget.cpp

HEADERS += \
    comm/boxinteractorstyle.h \
    comm/region.h \
    comm/selectinteractorstyle.h \
    comm/vtkpickercallback.h \
    widget.h

FORMS += \
    widget.ui

INCLUDEPATH += $$PWD/3rd/VTK_8.2/include/vtk-8.2
LIBS +=$$PWD/3rd/VTK_8.2/lib/vtkChartsCore-8.2.lib

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target

DESTDIR = ./bin
UI_DIR =  "$$OUT_PWD/temp/.ui"
RCC_DIR =  "$$OUT_PWD/temp/.qrc"
MOC_DIR = "$$OUT_PWD/temp/.moc"
OBJECTS_DIR =  "$$OUT_PWD/temp/.obj"

RESOURCES += \
    paint.qrc

DEF_FILE = ActiveX.def

（2），.h 文件

#ifndef WIDGET_H
#define WIDGET_H

#include <QWidget>
#include <QListWidgetItem>
#include <ActiveQt>

#include "comm/selectinteractorstyle.h"
#include "comm/boxinteractorstyle.h"
#include "comm/vtkpickercallback.h"

//# 设置内存执行编码 UTF-8
#ifdef Q_OS_WIN
#pragma execution_character_set("UTF-8")
#endif

// ObjectSafety
//# 控件安全标记类
#include <QAxAggregated>
#include <objsafe.h>
#include <QUuid>
class ObjectSafety : public QAxAggregated, public IObjectSafety
{
public:
    ObjectSafety(){
    }
    QAXAGG_IUNKNOWN;
    long queryInterface(const QUuid &iid, void **iface)
    {
        *iface = NULL;
        if (iid == IID_IObjectSafety)
        {
            *iface = (IObjectSafety*)this;
        }
        else
        {
            return E_NOINTERFACE;
        }
        AddRef();
        return S_OK;
    }
    HRESULT WINAPI GetInterfaceSafetyOptions(REFIID riid, DWORD *pdwSupportedOptions, DWORD *pdwEnabledOptions)
    {
        *pdwSupportedOptions = INTERFACESAFE_FOR_UNTRUSTED_DATA | INTERFACESAFE_FOR_UNTRUSTED_CALLER;
        *pdwEnabledOptions = INTERFACESAFE_FOR_UNTRUSTED_DATA | INTERFACESAFE_FOR_UNTRUSTED_CALLER;
        return S_OK;
    }
    HRESULT WINAPI SetInterfaceSafetyOptions(REFIID riid, DWORD pdwSupportedOptions, DWORD pdwEnabledOptions)
    {
        return S_OK;
    }
};

QT_BEGIN_NAMESPACE
namespace Ui { class Widget; }
QT_END_NAMESPACE

typedef enum StyleMode {
    Box,Select
}StyleMode;

class Widget : public QWidget,public QAxBindable
{
    Q_OBJECT
    Q_CLASSINFO("ClassID",     "{DD16845C-92CD-4AAB-A982-EB9840E74669}")
    Q_CLASSINFO("InterfaceID", "{616F620B-91C5-4410-A74E-6B81C76FFFE0}")
    Q_CLASSINFO("EventsID",    "{E1816BBA-BF5D-4A31-9855-D6BA432055FF}")

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

   

private slots:
   

private:
    Ui::Widget *ui;
    
private:

    QAxAggregated* createAggregate()
    {
        return new ObjectSafety;
    }
};
#endif // WIDGET_H

（3），main.cpp 文件

#include "widget.h"

#include <QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    if (!QAxFactory::isServer()) {
        Widget w;
        w.show();
        return a.exec();
    }
    return a.exec();
}

//! [1]
QAXFACTORY_BEGIN("{EC08F8FC-2754-47AB-8EFE-56A54057F34E}", /* type library ID */ "{A095BA0C-224F-4933-A458-2DD7F6B85D8F}") /* application ID */
    QAXCLASS(Widget)
QAXFACTORY_END()
//! [1]

（4）.def 文件

EXPORTS
    DllCanUnloadNow      PRIVATE
    DllGetClassObject    PRIVATE
    DllRegisterServer    PRIVATE
    DllUnregisterServer  PRIVATE
    DumpIDL              PRIVATE

四，编译完 注册

用qt再带的idc 命令

idc -regserver paintwork.exe

五，html 使用

只有IE 还支持activeX控件加载。

<html lang="en">
<head>
<meta name="GENERATOR" content="Microsoft Visual Studio">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>ActiveXCameraGui</title>
</head>
<body>
    <object id="ActiveQtServer" style="width:1024px;height:1024px;" classid="CLSID:DD16845C-92CD-4AAB-A982-EB9840E74669">
        <param name="Version" value="BTC">
    </object>
    <button onclick="alert(ActiveQtServer.Version())">Version</button>

<script>
    window.onload = function () {
       // var ret = ActiveQtServer.Version;
       // alert(ret);//打印 初始化版本信息
        //alert("Hello World!");//打印 Hello World！
    };
</script>
</body>
</html>

六，效果

参考：https://www.cnblogs.com/cheungxiongwei/p/8316242.html