Windows编程

开发平台：
Visual C++

local.cpp：源码内容
							// local.cpp
#define _WIN32_DCOM
#include <windows.h>
#include <iostream.h>  // For cout
#include "registry.h"  // For registry functions
#include "Componentcomponent.h" // Generated by MIDL
class CInsideCOM : public ISum
{
public:
	// IUnknown
	ULONG __stdcall AddRef();
	ULONG __stdcall Release();
	HRESULT __stdcall QueryInterface(REFIID riid, void** ppv);
	// ISum
	HRESULT __stdcall Sum(int x, int y, int* retval);
};
// No need for reference counting in a singleton
ULONG CInsideCOM::AddRef()
{
	return 2;
}
ULONG CInsideCOM::Release()
{
	return 1;
}
HRESULT CInsideCOM::QueryInterface(REFIID riid, void** ppv)
{
	if(riid == IID_IUnknown)
	{
		cout << "Component: CInsideCOM::QueryInterface() for IUnknown returning " << this << endl;
		*ppv = reinterpret_cast<IUnknown*>(this);
	}
	else if(riid == IID_ISum)
	{
		cout << "Component: CInsideCOM::QueryInterface() for ISum returning " << this << endl;
		*ppv = (ISum*)this;
	}
	else 
	{
		*ppv = NULL;
		return E_NOINTERFACE;
	}
	return S_OK;
}
HRESULT CInsideCOM::Sum(int x, int y, int* retval)
{
	cout << "Component: CInsideCOM::Sum() " << x << " + " << y << " = " << x + y << endl;
	*retval = x + y;
	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;
	// Always return the same instance
	static CInsideCOM InsideCOM;
	cout << "Component: CFactory::CreateInstance() " << &InsideCOM << endl;
	// QueryInterface probably for IID_IUnknown
	return InsideCOM.QueryInterface(riid, ppv);
}
HRESULT CFactory::LockServer(BOOL bLock)
{
	return S_OK;
}
void RegisterComponent()
{
	ITypeLib* pTypeLib;
	LoadTypeLibEx(L"Component.exe", REGKIND_DEFAULT, &pTypeLib);
	RegisterServer("Component.exe", CLSID_InsideCOM, "Inside COM Sample #1", "Component.InsideCOM", "Component.InsideCOM.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_InsideCOM, "Component.InsideCOM", "Component.InsideCOM.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_InsideCOM, pClassFactory, CLSCTX_LOCAL_SERVER, REGCLS_MULTIPLEUSE, &dwRegister);
	HANDLE hEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
	WaitForSingleObject(hEvent, INFINITE);
	CoRevokeClassObject(dwRegister);
	pClassFactory->Release();
	CoUninitialize();
}

						