111 lines
2.5 KiB
C++
111 lines
2.5 KiB
C++
|
/////////////////////////////////////////////////////////////////////////////
|
||
|
|
//
|
||
|
|
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
|
||
|
|
// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
|
||
|
|
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
|
||
|
|
// PARTICULAR PURPOSE.
|
||
|
|
//
|
||
|
|
// Copyright 1998 Microsoft Corporation. All Rights Reserved.
|
||
|
|
//
|
||
|
|
// Author: Scott Roberts, Microsoft Developer Support - Internet Client SDK
|
||
|
|
//
|
||
|
|
// Portions of this code were taken from the bandobj sample that comes
|
||
|
|
// with the Internet Client SDK for Internet Explorer 4.0x
|
||
|
|
//
|
||
|
|
//
|
||
|
|
// ClsFact.cpp - CClassFactory Implementation
|
||
|
|
/////////////////////////////////////////////////////////////////////////////
|
||
|
|
#include "pch.hxx"
|
||
|
|
#include "ClsFact.h"
|
||
|
|
#include "Guid.h"
|
||
|
|
|
||
|
|
///////////////////////////////////////////////////////////////////////////
|
||
|
|
//
|
||
|
|
// IClassFactory Methods
|
||
|
|
//
|
||
|
|
|
||
|
|
CClassFactory::CClassFactory(CLSID clsid)
|
||
|
|
: m_cRef(1),
|
||
|
|
m_clsidObject(clsid)
|
||
|
|
|
||
|
|
{
|
||
|
|
InterlockedIncrement(&g_cDllRefCount);
|
||
|
|
}
|
||
|
|
|
||
|
|
CClassFactory::~CClassFactory()
|
||
|
|
{
|
||
|
|
InterlockedDecrement(&g_cDllRefCount);
|
||
|
|
}
|
||
|
|
|
||
|
|
STDMETHODIMP CClassFactory::QueryInterface(REFIID riid, LPVOID* ppvObject)
|
||
|
|
{
|
||
|
|
*ppvObject = NULL;
|
||
|
|
|
||
|
|
if (IsEqualIID(riid, IID_IUnknown))
|
||
|
|
*ppvObject = this;
|
||
|
|
else if(IsEqualIID(riid, IID_IClassFactory))
|
||
|
|
*ppvObject = static_cast<IClassFactory*>(this);
|
||
|
|
|
||
|
|
if (*ppvObject)
|
||
|
|
{
|
||
|
|
static_cast<LPUNKNOWN>(*ppvObject)->AddRef();
|
||
|
|
return S_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
return E_NOINTERFACE;
|
||
|
|
}
|
||
|
|
|
||
|
|
STDMETHODIMP_(ULONG) CClassFactory::AddRef()
|
||
|
|
{
|
||
|
|
return InterlockedIncrement(&m_cRef);
|
||
|
|
}
|
||
|
|
|
||
|
|
STDMETHODIMP_(ULONG) CClassFactory::Release()
|
||
|
|
{
|
||
|
|
if (0 == InterlockedDecrement(&m_cRef))
|
||
|
|
{
|
||
|
|
delete this;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
return m_cRef;
|
||
|
|
}
|
||
|
|
|
||
|
|
STDMETHODIMP CClassFactory::CreateInstance(LPUNKNOWN pUnkOuter, REFIID riid, LPVOID* ppvObject)
|
||
|
|
{
|
||
|
|
HRESULT hr = E_FAIL;
|
||
|
|
LPVOID pTemp = NULL;
|
||
|
|
|
||
|
|
*ppvObject = NULL;
|
||
|
|
|
||
|
|
if (pUnkOuter != NULL)
|
||
|
|
return CLASS_E_NOAGGREGATION;
|
||
|
|
|
||
|
|
// Create the proper object
|
||
|
|
if (IsEqualCLSID(m_clsidObject, CLSID_BLHost))
|
||
|
|
{
|
||
|
|
CBLHost* pBLHost = new CBLHost();
|
||
|
|
|
||
|
|
if (NULL == pBLHost)
|
||
|
|
return E_OUTOFMEMORY;
|
||
|
|
|
||
|
|
pTemp = pBLHost;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (pTemp)
|
||
|
|
{
|
||
|
|
// QI for the requested interface
|
||
|
|
hr = (static_cast<LPUNKNOWN>(pTemp))->QueryInterface(riid, ppvObject);
|
||
|
|
|
||
|
|
// Call Release to decement the ref count
|
||
|
|
(static_cast<LPUNKNOWN>(pTemp))->Release();
|
||
|
|
}
|
||
|
|
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
|
||
|
|
STDMETHODIMP CClassFactory::LockServer(BOOL)
|
||
|
|
{
|
||
|
|
return E_NOTIMPL;
|
||
|
|
}
|