local.cpp

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// local.cpp
#define _WIN32_DCOM
#include <windows.h>
#include <iostream.h>  // For cout
#include "registry.h"  // For registry functions
#include "Component\component.h" // Generated by MIDL
#include <stdio.h>
#include <conio.h>

long g_cComponents = 0;
long g_cServerLocks = 0;
HANDLE g_hEvent;

class CTestIDL : public IPointerTest
{
public:
	// IUnknown
	ULONG __stdcall AddRef();
	ULONG __stdcall Release();
	HRESULT __stdcall QueryInterface(REFIID riid, void** ppv);

	HRESULT __stdcall GetInterfacePointer2(REFIID riid, IUnknown** ppv);
	HRESULT __stdcall GetInterfacePointer3(IPointerTest** ppv);
	HRESULT __stdcall GetInterfacePointer4(REFIID riid, void** ppv);

	CTestIDL() : m_cRef(1) { g_cComponents++; }
	~CTestIDL() { cout << "Component: CTestIDL::~CTestIDL()" << endl, g_cComponents--; }

private:
	ULONG m_cRef;
};

// HRESULT GetInterfacePointer2([in] REFIID riid, [out, iid_is(riid)] IUnknown** ppv);
HRESULT CTestIDL::GetInterfacePointer2(REFIID riid, IUnknown** ppv)
{
	return QueryInterface(riid, (void**)ppv);
}

// HRESULT GetInterfacePointer3([out] IPointerTest** ppv);
HRESULT CTestIDL::GetInterfacePointer3(IPointerTest** ppv)
{
	return QueryInterface(IID_IPointerTest, (void**)ppv);
}

// [local] HRESULT GetInterfacePointer4([in] REFIID riid, [out, iid_is(riid)] void** ppv);
// [call_as(GetInterfacePointer4)] HRESULT RemoteGetInterfacePointer4([in] REFIID riid, [out, iid_is(riid)] IUnknown** ppv);
HRESULT CTestIDL::GetInterfacePointer4(REFIID riid, void** ppv)
{
	return QueryInterface(riid, (void**)ppv);
}

ULONG CTestIDL::AddRef()
{
	cout << "Component: CTestIDL::AddRef() m_cRef = " << m_cRef + 1 << endl;
	return ++m_cRef;
}

ULONG CTestIDL::Release()
{
	cout << "Component: CTestIDL::Release() m_cRef = " << m_cRef - 1 << endl;
	if(--m_cRef != 0)
		return m_cRef;
	SetEvent(g_hEvent);	// ADD THIS!!!
	delete this;
	return 0;
}

HRESULT CTestIDL::QueryInterface(REFIID riid, void** ppv)
{
	if(riid == IID_IUnknown)
	{
		cout << "Component: CTestIDL::QueryInterface() for IUnknown returning " << this << endl;
		*ppv = reinterpret_cast<IUnknown*>(this);
	}
	else if(riid == IID_IPointerTest)
	{
		cout << "Component: CTestIDL::QueryInterface() ASKING FOR IPointerTest " << this << endl;
		*ppv = (IPointerTest*)this;
	}
	else 
	{
		*ppv = NULL;
		return E_NOINTERFACE;
	}
	AddRef();
	return S_OK;
}

class CFactory : public IClassFactory
{
public:
	// IUnknown
	ULONG __stdcall AddRef();
	ULONG __stdcall Release();
	HRESULT __stdcall QueryInterface(REFIID riid, void** ppv);

	// IClassFactory
	HRESULT __stdcall CreateInstance(IUnknown *pUnknownOuter, REFIID riid, void** ppv);
	HRESULT __stdcall LockServer(BOOL bLock);

	CFactory() : m_cRef(1) { }
	~CFactory() { }

private:
	ULONG m_cRef;
};

ULONG CFactory::AddRef()
{
	cout << "Component: CFactory::AddRef() m_cRef = " << m_cRef + 1 << endl;
	return ++m_cRef;
}

ULONG CFactory::Release()
{
	cout << "Component: CFactory::Release() m_cRef = " << m_cRef - 1 << endl;
	if(--m_cRef != 0)
		return m_cRef;
	delete this;
	return 0;
}

HRESULT CFactory::QueryInterface(REFIID riid, void** ppv)
{
	if((riid == IID_IUnknown) || (riid == IID_IClassFactory))
	{
		cout << "Component: CFactory::QueryInteface() for IUnknown or IClassFactory " << this << endl;
		*ppv = (IClassFactory*)this;
	}
	else
	{
		*ppv = NULL;
		return E_NOINTERFACE;
	}
	AddRef();
	return S_OK;
}

HRESULT CFactory::CreateInstance(IUnknown *pUnknownOuter, REFIID riid, void** ppv)
{
	if(pUnknownOuter != NULL)
		return CLASS_E_NOAGGREGATION;

	CTestIDL *pTestIDL = new CTestIDL;
	cout << "Component: CFactory::CreateInstance() " << pTestIDL << endl;

	if(pTestIDL == NULL)
		return E_OUTOFMEMORY;

	// QueryInterface probably for IID_IUNKNOWN
	HRESULT hr = pTestIDL->QueryInterface(riid, ppv);
	pTestIDL->Release();
	return hr;
}

HRESULT CFactory::LockServer(BOOL bLock)
{
	if(bLock)
		g_cServerLocks++;
	else
		g_cServerLocks--;
	return S_OK;
}

void RegisterComponent()
{
	ITypeLib* pTypeLib;
	LoadTypeLibEx(L"component.exe", REGKIND_DEFAULT, &pTypeLib);
	RegisterServer("component.exe", CLSID_PointerTest, "Test IDL Sample", "Component.InterfacePointer", "Component.InterfacePointer.1", NULL);
}

void CommandLineParameters(int argc, char** argv)
{
	RegisterComponent();
	if(argc < 2)
	{
		cout << "No parameter, but registered anyway" << endl;
		exit(false);
	}
	char* szToken = strtok(argv[1], "-/"); 
	if(_stricmp(szToken, "RegServer") == 0)
	{
		RegisterComponent();
		cout << "RegServer" << endl;
		exit(true);
	}
	if(_stricmp(szToken, "UnregServer") == 0)
	{
		UnRegisterTypeLib(LIBID_Component, 1, 0, LANG_NEUTRAL, SYS_WIN32);
		UnregisterServer(CLSID_PointerTest, "Component.InterfacePointer", "Component.InterfacePointer.1");
		cout << "UnregServer" << endl;
		exit(true);
	}
	if(_stricmp(szToken, "Embedding") != 0)
	{
		cout << "Invalid parameter" << endl;
		exit(false);
	}
}

void main(int argc, char** argv)
{
	CommandLineParameters(argc, argv);

	cout << "Component: CoInitializeEx()" << endl;
	CoInitializeEx(NULL, COINIT_MULTITHREADED);

	IClassFactory *pClassFactory = new CFactory();

	cout << "Component: CoRegisterClassObject()" << endl;
	DWORD dwRegister;
	CoRegisterClassObject(CLSID_PointerTest, pClassFactory, CLSCTX_LOCAL_SERVER, REGCLS_MULTIPLEUSE, &dwRegister);

	g_hEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
	WaitForSingleObject(g_hEvent, INFINITE);

	CoRevokeClassObject(dwRegister);
	pClassFactory->Release();
	CoUninitialize();

	_getch();
}