IPROPNOT.CPP

/* 
 * IPROPNOT.CPP 
 * 
 * Template implementation of IPropertyNotifySink 
 * 
 * Copyright (c)1993-1995 Microsoft Corporation, All Rights Reserved 
 * 
 * Kraig Brockschmidt, Microsoft 
 * Internet  :  kraigb@microsoft.com 
 * Compuserve:  >INTERNET:kraigb@microsoft.com 
 */ 
 
 
#include "ipropnot.h" 
 
 
/* 
 * CImpIPropertyNotifySink::CImpIPropertyNotifySink 
 * CImpIPropertyNotifySink::~CImpIPropertyNotifySink 
 * 
 * Constructor Parameters: 
 *  pObj            LPVOID of the object containing us. 
 *  pUnkOuter       LPUNKNOWN to which we blindly delegate 
 *                  all IUnknown calls. 
 */ 
 
CImpIPropertyNotifySink::CImpIPropertyNotifySink(LPVOID pObj 
    , LPUNKNOWN pUnkOuter) 
    { 
    m_cRef=0; 
    m_pObj=pObj; 
    m_pUnkOuter=pUnkOuter; 
    return; 
    } 
 
CImpIPropertyNotifySink::~CImpIPropertyNotifySink(void) 
    { 
    return; 
    } 
 
 
/* 
 * CImpIPropertyNotifySink::QueryInterface 
 * CImpIPropertyNotifySink::AddRef 
 * CImpIPropertyNotifySink::Release 
 * 
 * Purpose: 
 *  Delegating IUnknown members for CImpIPropertyNotifySink. 
 */ 
 
STDMETHODIMP CImpIPropertyNotifySink::QueryInterface(REFIID riid 
    , LPVOID *ppv) 
    { 
    return m_pUnkOuter->QueryInterface(riid, ppv); 
    } 
 
STDMETHODIMP_(ULONG) CImpIPropertyNotifySink::AddRef(void) 
    { 
    ++m_cRef; 
    return m_pUnkOuter->AddRef(); 
    } 
 
STDMETHODIMP_(ULONG) CImpIPropertyNotifySink::Release(void) 
    { 
    --m_cRef; 
    return m_pUnkOuter->Release(); 
    } 
 
 
 
/* 
 * CImpIPropertyNotifySink::OnChanged 
 * 
 * Purpose: 
 *  Notifies this sink that the property identified with dispID 
 *  has changed in whatever object this sink is connected to. 
 * 
 * Parameters: 
 *  dispID          DISPID of the property that changed, 
 *                  which can be DISPID_UNKNOWN for unspecified 
 *                  changes to multiple properties. 
 * 
 * Return Value: 
 *  HRESULT         NOERROR always. 
 */ 
 
STDMETHODIMP CImpIPropertyNotifySink::OnChanged(DISPID dispID) 
    { 
    return NOERROR; 
    } 
 
 
 
/* 
 * CImpIPropertyNotifySink::OnRequestEdit 
 * 
 * Purpose: 
 *  Notifies this sink that the property identified with dispID 
 *  is about to change and that the sink can prevent the change 
 *  if desired.  This can be used to enforce read-only states or 
 *  to save prior states before the change occurs. 
 * 
 * Parameters: 
 *  dispID          DISPID of the property that is changing 
 *                  which can be DISPID_UNKNOWN for multiple 
 *                  properties. 
 * 
 * Return Value: 
 *  HRESULT         NOERROR if the property can change, S_FALSE 
 *                  if it cannot change, error code otherwise. 
 */ 
 
STDMETHODIMP CImpIPropertyNotifySink::OnRequestEdit(DISPID dispID) 
    { 
    return NOERROR; 
    }