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| // SPDX-License-Identifier: LGPL-2.1-or-later | |
| /*************************************************************************** | |
| * Copyright (c) 2011 Werner Mayer <wmayer@users.sourceforge.net> * | |
| * * | |
| * This file is part of the FreeCAD CAx development system. * | |
| * * | |
| * This library is free software; you can redistribute it and/or * | |
| * modify it under the terms of the GNU Library General Public * | |
| * License as published by the Free Software Foundation; either * | |
| * version 2 of the License, or (at your option) any later version. * | |
| * * | |
| * This library is distributed in the hope that it will be useful, * | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of * | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * | |
| * GNU Library General Public License for more details. * | |
| * * | |
| * You should have received a copy of the GNU Library General Public * | |
| * License along with this library; see the file COPYING.LIB. If not, * | |
| * write to the Free Software Foundation, Inc., 59 Temple Place, * | |
| * Suite 330, Boston, MA 02111-1307, USA * | |
| * * | |
| ***************************************************************************/ | |
| STDAPI CThumbnailProvider_CreateInstance(REFIID riid, void** ppvObject); | |
| CClassFactory::CClassFactory() | |
| { | |
| m_cRef = 1; | |
| DllAddRef(); | |
| } | |
| CClassFactory::~CClassFactory() | |
| { | |
| DllRelease(); | |
| } | |
| STDMETHODIMP CClassFactory::QueryInterface(REFIID riid, void** ppvObject) | |
| { | |
| static const QITAB qit[] = { | |
| QITABENT(CClassFactory, IClassFactory), | |
| {0}, | |
| }; | |
| return QISearch(this, qit, riid, ppvObject); | |
| } | |
| STDMETHODIMP_(ULONG) CClassFactory::AddRef() | |
| { | |
| LONG cRef = InterlockedIncrement(&m_cRef); | |
| return (ULONG)cRef; | |
| } | |
| STDMETHODIMP_(ULONG) CClassFactory::Release() | |
| { | |
| LONG cRef = InterlockedDecrement(&m_cRef); | |
| if (0 == cRef) { | |
| delete this; | |
| } | |
| return (ULONG)cRef; | |
| } | |
| STDMETHODIMP CClassFactory::CreateInstance(IUnknown* punkOuter, REFIID riid, void** ppvObject) | |
| { | |
| if (NULL != punkOuter) { | |
| return CLASS_E_NOAGGREGATION; | |
| } | |
| return CThumbnailProvider_CreateInstance(riid, ppvObject); | |
| } | |
| STDMETHODIMP CClassFactory::LockServer(BOOL fLock) | |
| { | |
| return E_NOTIMPL; | |
| } | |
| STDAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, void** ppv) | |
| { | |
| if (NULL == ppv) { | |
| return E_INVALIDARG; | |
| } | |
| if (!IsEqualCLSID(CLSID_SampleThumbnailProvider, rclsid)) { | |
| return CLASS_E_CLASSNOTAVAILABLE; | |
| } | |
| CClassFactory* pcf; | |
| HRESULT hr; | |
| pcf = new CClassFactory(); | |
| if (NULL == pcf) { | |
| return E_OUTOFMEMORY; | |
| } | |
| hr = pcf->QueryInterface(riid, ppv); | |
| pcf->Release(); | |
| return hr; | |
| } | |