159 lines
4.1 KiB
C++
159 lines
4.1 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
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// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
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// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
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// PARTICULAR PURPOSE.
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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////////////////////////////////////////////////////////////////////////////////
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// Public Headers
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#include <windows.h>
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// Sample Headers
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#include "common.h"
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#include "CDeviceContextMenuFactory.h"
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#include "CDeviceContextMenu.h"
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//------------------------------------------------------------------------------
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// CDeviceContextMenuFactory::CDeviceContextMenuFactory (Constructor)
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//------------------------------------------------------------------------------
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CDeviceContextMenuFactory::CDeviceContextMenuFactory():
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m_cRef(1)
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{
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DllIncLockCount();
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}
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//------------------------------------------------------------------------------
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// CDeviceContextMenuFactory::~CDeviceContextMenuFactory (Destructor)
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//------------------------------------------------------------------------------
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CDeviceContextMenuFactory::~CDeviceContextMenuFactory()
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{
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DllDecLockCount();
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}
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//
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// IClassFactory
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//
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//------------------------------------------------------------------------------
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// CDeviceContextMenuFactory::CreateInstance
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//------------------------------------------------------------------------------
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IFACEMETHODIMP CDeviceContextMenuFactory::CreateInstance(
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__in_opt IUnknown* pUnkOuter,
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__in REFIID riid,
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__deref_out void** ppvObject
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)
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{
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HRESULT hr = E_FAIL;
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CDeviceContextMenu* pCDeviceContextMenu = NULL;
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if( NULL == ppvObject )
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{
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return E_INVALIDARG;
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}
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if( NULL != pUnkOuter )
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{
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return CLASS_E_NOAGGREGATION;
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}
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pCDeviceContextMenu = new CDeviceContextMenu();
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if( NULL == pCDeviceContextMenu )
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{
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return E_OUTOFMEMORY;
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}
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hr = pCDeviceContextMenu->QueryInterface( riid, ppvObject );
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pCDeviceContextMenu->Release();
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return hr;
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}// CDeviceContextMenuFactory::CreateInstance
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//------------------------------------------------------------------------------
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// CDeviceContextMenuFactory::LockServer
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//------------------------------------------------------------------------------
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IFACEMETHODIMP CDeviceContextMenuFactory::LockServer(
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BOOL bLock
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)
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{
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if( TRUE == bLock )
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{
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DllIncLockCount();
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}
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else
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{
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DllDecLockCount();
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}
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return S_OK;
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}// CDeviceContextMenuFactory::LockServer
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//
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// IUnknown
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//
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//------------------------------------------------------------------------------
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// CDeviceContextMenuFactory::QueryInterface
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//------------------------------------------------------------------------------
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IFACEMETHODIMP CDeviceContextMenuFactory::QueryInterface(
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__in REFIID riid,
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__deref_out void** ppvObject
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)
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{
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HRESULT hr = S_OK;
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if( NULL == ppvObject )
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{
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return E_INVALIDARG;
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}
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*ppvObject = NULL;
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if( __uuidof(IClassFactory) == riid )
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{
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*ppvObject = static_cast<IClassFactory*>(this);
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AddRef();
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}
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else if( __uuidof(IUnknown) == riid )
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{
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*ppvObject = static_cast<IUnknown*>(this);
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AddRef();
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}
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else
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{
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hr = E_NOINTERFACE;
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}
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return hr;
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}// CDeviceContextMenuFactory::QueryInterface
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//------------------------------------------------------------------------------
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// CDeviceContextMenuFactory::AddRef
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//------------------------------------------------------------------------------
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IFACEMETHODIMP_(ULONG) CDeviceContextMenuFactory::AddRef()
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{
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return InterlockedIncrement( &m_cRef );
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}// CDeviceContextMenuFactory::AddRef
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//------------------------------------------------------------------------------
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// CDeviceContextMenuFactory::Release
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//------------------------------------------------------------------------------
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IFACEMETHODIMP_(ULONG) CDeviceContextMenuFactory::Release()
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{
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LONG cRef = InterlockedDecrement( &m_cRef );
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if( 0 == cRef )
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{
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delete this;
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}
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return cRef;
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}// CDeviceContextMenuFactory::Release
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