Qt 開發 MS VC 控件終極篇

時間 2019-11-17

標籤開發控件終極欄目 C&C++ 简体版

原文原文鏈接

Qt 開發 MS VC 控件終極篇

1. 使用 MSVC2015 經過項目嚮導建立 `Qt ActiveQt Server` 解決方案

項目配置：如下文件須要修改
1. 項目屬性頁->項目屬性->常規->目標文件擴展名
2. 項目屬性頁->項目屬性->連接器->全部選項->輸出文件

*.dll 修改成 *.exe 文件

3. 項目屬性頁->項目屬性->常規->配置類型
生成文件 修改成 *.exe

2. 新建 `main.cpp` 源文件添加如下內容

main.cpphtml

//# 靜態編譯須要
#include <QtPlugin>
Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin)
// End 靜態編譯須要
#include <QApplication>
#include <QAxFactory>
#include "ActiveQtServer.h"

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    if (!QAxFactory::isServer()) {
        ActiveQtServer1 w;
        w.show();
                return app.exec();
    }
    return app.exec();
}

//導出接口
QAXFACTORY_BEGIN("{ad90301a-849e-4e8b-9a91-0a6dc5f6461f}","{a8f21901-7ff7-4f6a-b939-789620c03d83}")
    //導出類
    QAXCLASS(ActiveQtServer1)
QAXFACTORY_END()

3. 其餘文件以下所示

ActiveQtServer.h安全

#pragma once

#include <QtWidgets/QWidget>
#include <ActiveQt/QAxBindable>

#include "ui_ActiveQtServer.h"

//# 設置內存執行編碼 UTF-8
#ifdef Q_OS_WIN
#pragma execution_character_set("UTF-8")
#endif

//# 控件安全標記類
#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;
    }
};

//導出控件類
class ActiveQtServer : public QWidget, public QAxBindable
{
    Q_OBJECT
    //聲明類信息
    Q_CLASSINFO("ClassID", "{1D9928BD-4453-4bdd-903D-E525ED17FDE5}")
    Q_CLASSINFO("InterfaceID", "{99F6860E-2C5A-42ec-87F2-43396F4BE389}")
    Q_CLASSINFO("EventsID", "{0A3E9F27-E4F1-45bb-9E47-63099BCCD0E3}")
public:
    ActiveQtServer(QWidget *parent = Q_NULLPTR);
public Q_SLOTS:
    QString Version();
private:
    Ui::ActiveQtServerClass ui;
    //重寫 QAxBindable 類 createAggregate 方法
    QAxAggregated* createAggregate();
};

ActiveQtServer.cppapp

#include "ActiveQtServer.h"
#include <ActiveQt/QAxFactory>

ActiveQtServer::ActiveQtServer(QWidget *parent)
    : QWidget(parent)
{
    ui.setupUi(this);
}

QString ActiveQtServer::Version()
{
    return QString("Hello Word!");
}

QAxAggregated * ActiveQtServer::createAggregate()
{
    return new ObjectSafety;
}

ActiveQtServer.defui

; Declares the module parameters.

EXPORTS
    DllCanUnloadNow     PRIVATE
    DllGetClassObject   PRIVATE
    DllRegisterServer   PRIVATE
    DllUnregisterServer PRIVATE
    DumpIDL             PRIVATE

4. HTML 文件以下所示

<!DOCTYPE html>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=8" >
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE8" >
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>ActiveQtServer</title>
</head>
<body>
<div>
    <div>
      <object id="ActiveQtServer" width="0" height="0" classid="CLSID:1D9928BD-4453-4bdd-903D-E525ED17FDE5"></object>
    </div>

    <input type="button" onclick="alert(ActiveQtServer.Version())" value="獲取版本信息"/>

</div>
</body>
<script>

</script>
</html>

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