131 lines
3.4 KiB
C++
131 lines
3.4 KiB
C++
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//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1992.
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//
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// File: cqi.cxx
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//
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// Contents: implementations for QueryInterface test
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//
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// Functions:
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// CQI::CQI
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// CQI::~CQI
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// CQI::QueryInterface
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// CQI::GetClassForHandler
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//
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// History: 06-Aug-92 Rickhi Created
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//
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//--------------------------------------------------------------------------
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#include <pch.cxx>
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#pragma hdrstop
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#include <cqi.hxx> // class definition
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//+-------------------------------------------------------------------------
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//
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// Method: CQI::CQI
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//
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// Synopsis: Creates an instance of CQI
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//
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// History: 06-Aug-92 Rickhi Created
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//
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//--------------------------------------------------------------------------
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CQI::CQI(REFCLSID rclsid) : _clsid(rclsid)
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{
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Display(TEXT("CQI created.\n"));
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GlobalRefs(TRUE);
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ENLIST_TRACKING(CQI);
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CQI::~CQI
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//
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// Synopsis: Cleans up object
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//
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// History: 06-Aug-92 Rickhi Created
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//
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//--------------------------------------------------------------------------
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CQI::~CQI(void)
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{
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Display(TEXT("CQI deleted.\n"));
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GlobalRefs(FALSE);
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// automatic actions are enough
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CQI::QueryInterface
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//
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// Synopsis: returns ptr to requested interface.
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//
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// DANGER: this returns SUCCESS on almost every interface,
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// though the only valid methods on any interface are IUnknown
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// and IStdMarshalInfo.
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//
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// Arguments: [riid] - interface instance requested
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// [ppv] - where to put pointer to interface instance
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//
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// Returns: S_OK or E_NOINTERFACE
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//
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// History: 06-Aug-92 Rickhi Created
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//
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//--------------------------------------------------------------------------
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STDMETHODIMP CQI::QueryInterface(REFIID riid, void **ppv)
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{
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if (IsEqualIID(riid, IID_IStdMarshalInfo))
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{
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if (IsEqualCLSID(_clsid, CLSID_QIHANDLER))
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{
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*ppv = (IStdMarshalInfo *)this;
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AddRef();
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return S_OK;
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}
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}
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if (IsEqualIID(riid,IID_IUnknown) ||
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IsEqualIID(riid,IID_IAdviseSink) ||
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IsEqualIID(riid,IID_IDataObject) ||
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IsEqualIID(riid,IID_IOleObject) ||
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IsEqualIID(riid,IID_IOleClientSite) ||
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IsEqualIID(riid,IID_IParseDisplayName) ||
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IsEqualIID(riid,IID_IPersistStorage) ||
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IsEqualIID(riid,IID_IPersistFile) ||
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IsEqualIID(riid,IID_IStorage) ||
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IsEqualIID(riid,IID_IOleContainer) ||
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IsEqualIID(riid,IID_IOleItemContainer) ||
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IsEqualIID(riid,IID_IOleInPlaceSite) ||
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IsEqualIID(riid,IID_IOleInPlaceActiveObject) ||
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IsEqualIID(riid,IID_IOleInPlaceObject) ||
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IsEqualIID(riid,IID_IOleInPlaceUIWindow) ||
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IsEqualIID(riid,IID_IOleInPlaceFrame) ||
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IsEqualIID(riid,IID_IOleWindow))
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{
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*ppv = (void *)(IUnknown *) this;
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AddRef();
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return S_OK;
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}
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*ppv = NULL;
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return E_NOINTERFACE;
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CQI::GetClassForHandler
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//
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// Synopsis: returns the classid for the inproc handler of this object.
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// Used to test handler marshaling.
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//
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// History: 06-Aug-92 Rickhi Created
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//
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//--------------------------------------------------------------------------
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STDMETHODIMP CQI::GetClassForHandler(DWORD dwDestContext,
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void *pvDestContext,
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CLSID *pClsid)
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{
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*pClsid = CLSID_QIHANDLER;
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return S_OK;
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}
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