client.cpp

Visual_C++[1].NET_Bible1 Visual_C++宝典书中的全部源码

// Client.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <iostream>
using namespace std;

#import "..\DbServerAttEvent\_DbServerAttEvent.tlb" \
	no_namespace named_guids embedded_idl

//CComModule _Module;

[ module(name="ClientModule") ];

[ event_receiver(com) ]
class CEventHandler {
public:
	HRESULT HandleFinished() 
	{
		MessageBox(0, "FinishedUpdating", "Event Received", 0);
		return S_OK;
	}

	void HookEvent(IDbObject* pSource) 
	{
		__hook(&_IDbObjectEvents::FinishedUpdating, 
			pSource, &CEventHandler::HandleFinished);
	}

	void UnhookEvent(IDbObject* pSource) 
	{
		__unhook(&_IDbObjectEvents::FinishedUpdating, 
			pSource, &CEventHandler::HandleFinished);
	}
};


int _tmain(int argc, _TCHAR* argv[])
{
	CoInitialize(NULL);
//	_Module.Init(NULL, GetModuleHandle(NULL));

	try
	{
		IDbObjectPtr p(CLSID_CDbObject);
		CEventHandler eh;
//		eh.DispEventAdvise(p);
		eh.HookEvent(p);
		p->UpdateIndexes();

		cout << "Doing something else while the object works";
		for (int i = 0; i < 10; i++)
		{
			cout << ".";
			Sleep(1000);
		}
		cout << endl;

		eh.UnhookEvent(p);
//		eh.DispEventUnadvise(p);
	}
	catch(_com_error& e)
	{
		cout << e.ErrorMessage();
	}

//	_Module.Term();
	CoUninitialize();
	return 0;
}