Duilib 中加载activex件中的事件与方法

闲静少言，不慕荣利。好交友，不求回报；好技术，每有会意，便写文章自娱。喜编程，善vc，但无好看之界面之引擎，好vc之人，无不知mfc，然界面丑陋之极点，偶遇duilib，甚是喜爱，技艺不精，希勿笑。
        困扰已久，几经搜寻，终于在codeproject 上面搜到一篇好文，甚喜，几经参摹，现列举成文，希有同需而不得者共之。
原文帖：http://www.codeproject.com/Articles/9014/Understanding-COM-Event-Handling
备用帖：链接: http://pan.baidu.com/s/1geg2hxh 密码: gkr3
要知详细如何，且down源码细研之。down url：链接: http://pan.baidu.com/s/1jH2GFvo 密码: 4vha
1.我加载的是串口的mscomm32.ocx 下载地址，百度一搜一大把
      2.下载下来先注册activex，运行-》regsvr32 activex文件名及路径。
      3.创建duilib项目。现分类复制粘帖
duidemo.xml

<?xml version="1.0" encoding="utf-8" standalone="yes" ?>

</HorizontalLayout>

</HorizontalLayout>

</VerticalLayout>

</VerticalLayout>

</HorizontalLayout>

</VerticalLayout>

</Window>
2. MainFrame.h
#import "C:\\Windows\\SysWOW64\\mscomm32.ocx" raw_interfaces_only, raw_native_types, no_namespace, named_guids

class CMainFrame;

typedef TEventHandler<CMainFrame, IMSComm, DMSCommEvents> IEventFiringObjectEventHandler;
...

HRESULT OnEventFiringObjectInvoke

(

IEventFiringObjectEventHandler* pEventHandler,

DISPID dispidMember,

REFIID riid,

LCID lcid,

WORD wFlags,

DISPPARAMS* pdispparams,

VARIANT* pvarResult,

EXCEPINFO* pexcepinfo,

UINT* puArgErr

);
...

CActiveXUI* m_Activex;

CRichEditUI* m_txtUI;

IMSComm* m_pComm;

DWORD m_Cookie;

IEventFiringObjectEventHandler* m_spIEventDMSEventHandler;

3.MainFrame.cpp

m_Activex = static_cast<CActiveXUI*>(m_PaintManager.FindControl(_T("wmplayer")));

if(m_Activex)

{

m_Activex->GetControl(IID_IMSComm,(void**)&m_pComm);

//DMSCommEvents

if(m_pComm)

ConnectEvents();

}
...
m_spIEventDMSEventHandler = new IEventFiringObjectEventHandler(*this,m_pComm,&CMainFrame::OnEventFiringObjectInvoke);
...
HRESULT CMainFrame::OnEventFiringObjectInvoke( IEventFiringObjectEventHandler* pEventHandler, DISPID dispidMember, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS* pdispparams, VARIANT* pvarResult, EXCEPINFO* pexcepinfo, UINT* puArgErr )

{

VARIANT variant_inp;

COleSafeArray safearray_inp;

short psCommEvent = 0;

long varBufLen = 0;

byte varRxdata[256]; //设置BYTE数组

CDuiString varShowMsg(_T(""));

wstring m_strShow(_T(""));

if (dispidMember == 0x01) // Event1 event.

{

m_pComm->get_CommEvent(&psCommEvent);

if(psCommEvent == 2)

{

Sleep(1000);

m_pComm->get_Input(&variant_inp);

safearray_inp = variant_inp;

varBufLen = safearray_inp.GetOneDimSize();

for(long i = 0;i < varBufLen;i ++)

{

safearray_inp.GetElement(&i,varRxdata+i);

}

for(int i = 0;i < varBufLen;i ++)

{

char var = *(char*)(varRxdata+i);

m_Revbuf[i] = var;

varShowMsg.Format(_T("%c"),var);

m_strShow += varShowMsg.GetData();

}

m_strShow += _T("\r\n");

//wchar_t* ptr = const_cast<wchar_t*>(m_strShow.data());

m_txtUI->AppendText(m_strShow.c_str());

}

return S_OK;

}
4, EventHandle.h
#pragma once

namespace TEventHandlerNamespace

{

// Generic event handler template class (especially useful (but not limited to) for non-ATL clients).

template <class event_handler_class, typename device_interface, typename device_event_interface>

class TEventHandler : IDispatch

{

friend class class_event_handler;

typedef HRESULT (event_handler_class::*parent_on_invoke)

(

TEventHandler<event_handler_class, device_interface, device_event_interface>* pthis,

DISPID dispidMember,

REFIID riid,

LCID lcid,

WORD wFlags,

DISPPARAMS* pdispparams,

VARIANT* pvarResult,

EXCEPINFO* pexcepinfo,

UINT* puArgErr

);

public :

TEventHandler

(

event_handler_class& parent,

device_interface* pdevice_interface, // Non-ref counted.

parent_on_invoke parent_on_invoke_function

) :

m_cRef(1),

m_parent(parent),

m_parent_on_invoke(parent_on_invoke_function),

m_pIConnectionPoint(0),

m_dwEventCookie(0)

{

SetupConnectionPoint(pdevice_interface);

}

~TEventHandler()

{

// Call ShutdownConnectionPoint() here JUST IN CASE connection points are still

// alive at this time. They should have been disconnected earlier.

ShutdownConnectionPoint();

}

STDMETHOD_(ULONG, AddRef)()

{

InterlockedIncrement(&m_cRef);

return m_cRef;

}

STDMETHOD_(ULONG, Release)()

{

InterlockedDecrement(&m_cRef);

if (m_cRef == 0)

{

delete this;

return 0;

}

return m_cRef;

}

STDMETHOD(QueryInterface)(REFIID riid, void ** ppvObject)

{

if (riid == IID_IUnknown)

{

*ppvObject = (IUnknown*)this;

AddRef();

return S_OK;

}

if ((riid == IID_IDispatch) || (riid == __uuidof(device_event_interface)))

{

*ppvObject = (IDispatch*)this;

AddRef();

return S_OK;

}

return E_NOINTERFACE;

}

STDMETHOD(GetTypeInfoCount)(UINT* pctinfo)

{

return E_NOTIMPL;

}

STDMETHOD(GetTypeInfo)(UINT itinfo, LCID lcid, ITypeInfo** pptinfo)

{

return E_NOTIMPL;

}

STDMETHOD(GetIDsOfNames)(REFIID riid, LPOLESTR* rgszNames, UINT cNames,

LCID lcid, DISPID* rgdispid)

{

return E_NOTIMPL;

}

STDMETHOD(Invoke)(DISPID dispidMember, REFIID riid,

LCID lcid, WORD wFlags, DISPPARAMS* pdispparams, VARIANT* pvarResult,

EXCEPINFO* pexcepinfo, UINT* puArgErr)

{

return (m_parent.*m_parent_on_invoke)(this, dispidMember, riid, lcid, wFlags, pdispparams, pvarResult, pexcepinfo, puArgErr);

}

protected :

LONGm_cRef;

// Pertaining to the owner of this object.

event_handler_class&m_parent; // Non-reference counted. This is to prevent circular references.

// Pertaining to connection points.

IConnectionPoint*m_pIConnectionPoint; // Ref counted of course.

DWORDm_dwEventCookie;

parent_on_invokem_parent_on_invoke;

void SetupConnectionPoint(device_interface* pdevice_interface)

{

IConnectionPointContainer*pIConnectionPointContainerTemp = NULL;

IUnknown*pIUnknown = NULL;

// QI this object itself for its IUnknown pointer which will be used

// later to connect to the Connection Point of the device_interface object.

this -> QueryInterface(IID_IUnknown, (void**)&pIUnknown);

if (pIUnknown)

{

// QI the pdevice_interface for its connection point.

pdevice_interface -> QueryInterface (IID_IConnectionPointContainer, (void**)&pIConnectionPointContainerTemp);

if (pIConnectionPointContainerTemp)

{

pIConnectionPointContainerTemp -> FindConnectionPoint(__uuidof(device_event_interface), &m_pIConnectionPoint);

pIConnectionPointContainerTemp -> Release();

pIConnectionPointContainerTemp = NULL;

}

if (m_pIConnectionPoint)

{

m_pIConnectionPoint -> Advise(pIUnknown, &m_dwEventCookie);

}

pIUnknown -> Release();

pIUnknown = NULL;

}

public :

void ShutdownConnectionPoint()

{

if (m_pIConnectionPoint)

{

m_pIConnectionPoint -> Unadvise(m_dwEventCookie);

m_dwEventCookie = 0;

m_pIConnectionPoint -> Release();

m_pIConnectionPoint = NULL;

}

};