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IOLEOBJ.CPP：源码内容
							/*
 * IOLEOBJ.CPP
 * Polyline Component Chapter 23
 *
 * Implementation of the IOleObject interface for Polyline.  Some of
 * these just pass through to the default handler which does default
 * implementations.
 *
 * Copyright (c)1993-1995 Microsoft Corporation, All Rights Reserved
 *
 * Kraig Brockschmidt, Microsoft
 * Internet  :  kraigb@microsoft.com
 * Compuserve:  >INTERNET:kraigb@microsoft.com
 */
#include "polyline.h"
/*
 * CImpIOleObject::CImpIOleObject
 * CImpIOleObject::~CImpIOleObject
 *
 * Parameters (Constructor):
 *  pObj            PCPolyline of the object we're in.
 *  pUnkOuter       LPUNKNOWN to which we delegate.
 */
CImpIOleObject::CImpIOleObject(PCPolyline pObj
    , LPUNKNOWN pUnkOuter)
    {
    m_cRef=0;
    m_pObj=pObj;
    m_pUnkOuter=pUnkOuter;
    return;
    }
CImpIOleObject::~CImpIOleObject(void)
    {
    return;
    }
/*
 * CImpIOleObject::QueryInterface
 * CImpIOleObject::AddRef
 * CImpIOleObject::Release
 *
 * Purpose:
 *  IUnknown members for CImpIOleObject object.
 */
STDMETHODIMP CImpIOleObject::QueryInterface(REFIID riid, PPVOID ppv)
    {
    return m_pUnkOuter->QueryInterface(riid, ppv);
    }
STDMETHODIMP_(ULONG) CImpIOleObject::AddRef(void)
    {
    ++m_cRef;
    return m_pUnkOuter->AddRef();
    }
STDMETHODIMP_(ULONG) CImpIOleObject::Release(void)
    {
    --m_cRef;
    return m_pUnkOuter->Release();
    }
/*
 * CImpIOleObject::SetClientSite
 * CImpIOleObject::GetClientSite
 *
 * Purpose:
 *  Manages the IOleClientSite pointer of our container.
 */
STDMETHODIMP CImpIOleObject::SetClientSite
    (LPOLECLIENTSITE pIOleClientSite)
    {
    if (NULL!=m_pObj->m_pIOleClientSite)
        m_pObj->m_pIOleClientSite->Release();
    m_pObj->m_pIOleClientSite=pIOleClientSite;
    if (NULL!=m_pObj->m_pIOleClientSite)
        {
        HRESULT         hr;
        LPMONIKER       pmk;
        LPOLECONTAINER  pIOleCont;
        m_pObj->m_pIOleClientSite->AddRef();
        /*
         * Within IRunnableObject::Run we're supposed to register
         * ourselves as running...however, the moniker has to come
         * from the container's IOleClientSite::GetMoniker.  But
         * Run is called before SetClientSite here, so we have to
         * register now that we do have the client site as well
         * as lock the container.
         */
        hr=m_pObj->m_pIOleClientSite->GetMoniker
            (OLEGETMONIKER_ONLYIFTHERE, OLEWHICHMK_OBJFULL, &pmk);
        if (SUCCEEDED(hr))
            {
            INOLE_RegisterAsRunning(this, pmk, 0
                , &m_pObj->m_dwRegROT);
            pmk->Release();
            }
        hr=m_pObj->m_pIOleClientSite->GetContainer(&pIOleCont);
        if (SUCCEEDED(hr))
            {
            m_pObj->m_fLockContainer=TRUE;
            pIOleCont->LockContainer(TRUE);
            pIOleCont->Release();
            }
        }
    return NOERROR;
    }
STDMETHODIMP CImpIOleObject::GetClientSite(LPOLECLIENTSITE *ppSite)
    {
    //Be sure to AddRef the new pointer you are giving away.
    *ppSite=m_pObj->m_pIOleClientSite;
    m_pObj->m_pIOleClientSite->AddRef();
    return NOERROR;
    }
/*
 * CImpIOleObject::SetHostNames
 *
 * Purpose:
 *  Provides the object with names of the container application and
 *  the object in the container to use in object user interface.
 *
 * Parameters:
 *  pszApp          LPCOLESTR of the container application.
 *  pszObj          LPCOLESTR of some name that is useful in window
 *                  titles.
 *
 * Return Value:
 *  HRESULT         NOERROR
 */
STDMETHODIMP CImpIOleObject::SetHostNames(LPCOLESTR pszApp
    , LPCOLESTR pszObj)
    {
    if (NULL!=m_pObj->m_hDlg)
        {
        TCHAR       szTemp[128];
       #ifdef WIN32ANSI
        char        szObj[80];
        WideCharToMultiByte(CP_ACP, 0, pszObj, -1, szObj, 80
            , NULL, NULL);
        wsprintf(szTemp, SZPOLYFRAMETITLE, szObj);
       #else
        wsprintf(szTemp, SZPOLYFRAMETITLE, pszObj);
       #endif
        SetWindowText(m_pObj->m_hDlg, szTemp);
        }
    return NOERROR;
    }
/*
 * CImpIOleObject::Close
 *
 * Purpose:
 *  Forces the object to close down its user interface and unload.
 *
 * Parameters:
 *  dwSaveOption    DWORD describing the circumstances under which
 *                  the object is being saved and closed.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */
STDMETHODIMP CImpIOleObject::Close(DWORD dwSaveOption)
    {
    HWND        hWnd;
    BOOL        fSave=FALSE;
    hWnd=m_pObj->m_hDlg;
    //If object is dirty and we're asked to save, save it and close.
    if (OLECLOSE_SAVEIFDIRTY==dwSaveOption && m_pObj->m_fDirty)
        fSave=TRUE;
    /*
     * If asked to prompt, only do so if dirty, then if we get a
     * YES, save as usual and close.  On NO, just close.  On
     * CANCEL return OLE_E_PROMPTSAVECANCELLED.
     */
    if (OLECLOSE_PROMPTSAVE==dwSaveOption && m_pObj->m_fDirty)
        {
        TCHAR       szTitle[20];
        TCHAR       szTemp[80];
        UINT        uRet;
        lstrcpy(szTitle, m_pObj->String(IDS_CLOSECAPTION));
        lstrcpy(szTemp, m_pObj->String(IDS_CLOSEPROMPT));
        uRet=MessageBox(hWnd, szTemp, szTitle, MB_YESNOCANCEL);
        if (IDCANCEL==uRet)
            return ResultFromScode(OLE_E_PROMPTSAVECANCELLED);
        if (IDYES==uRet)
            fSave=TRUE;
        }
    if (fSave)
        {
        m_pObj->SendAdvise(OBJECTCODE_SAVEOBJECT);
        m_pObj->SendAdvise(OBJECTCODE_SAVED);
        }
    //We get directly here on OLECLOSE_NOSAVE.
    if (m_pObj->m_fLockContainer)
        {
        //Match LockContainer call from SetClientSite
        LPOLECONTAINER  pIOleCont;
        if (SUCCEEDED(m_pObj->m_pIOleClientSite
            ->GetContainer(&pIOleCont)))
            {
            pIOleCont->LockContainer(FALSE);
            pIOleCont->Release();
            }
        }
    if (NULL!=hWnd)
        {
        //This hides the window and sends the appropriate notify.
        DoVerb(OLEIVERB_HIDE, NULL, NULL, -1, NULL, NULL);
        m_pObj->SendAdvise(OBJECTCODE_CLOSED);
        PostMessage(hWnd, POLYM_CLOSE, 0, 0L);
        }
    return NOERROR;
    }
/*
 * CImpIOleObject::DoVerb
 *
 * Purpose:
 *  Executes an object-defined action.
 *
 * Parameters:
 *  iVerb           LONG index of the verb to execute.
 *  pMSG            LPMSG describing the event causing the
 *                  activation.
 *  pActiveSite     LPOLECLIENTSITE to the site involved.
 *  lIndex          LONG the piece on which execution is happening.
 *  hWndParent      HWND of the window in which the object can play
 *                  in-place.
 *  pRectPos        LPRECT of the object in hWndParent where the
 *                  object can play in-place if desired.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */
STDMETHODIMP CImpIOleObject::DoVerb(LONG iVerb, LPMSG pMSG
    , LPOLECLIENTSITE pActiveSite, LONG lIndex, HWND hWndParent
    , LPCRECT pRectPos)
    {
    HRESULT     hr;
    switch (iVerb)
        {
        case OLEIVERB_HIDE:
            //CHAPTER23MOD
            if (NULL!=m_pObj->m_pIOleIPSite)
                {
                if (NULL!=m_pObj->m_pHW)
                    ShowWindow(m_pObj->m_pHW->Window(), SW_HIDE);
                }
            else
                {
                if (NULL!=m_pObj->m_hDlg)
                    ShowWindow(m_pObj->m_hDlg, SW_HIDE);
                }
            m_pObj->SendAdvise(OBJECTCODE_HIDEWINDOW);
            m_pObj->m_fAllowInPlace=TRUE;
            //End CHAPTER23MOD
            break;
        //CHAPTER23MOD
        case OLEIVERB_PRIMARY:
        case OLEIVERB_SHOW:
            if (NULL!=m_pObj->m_pIOleIPSite)
                {
                if (NULL!=m_pObj->m_pHW)
                    ShowWindow(m_pObj->m_pHW->Window(), SW_HIDE);
                return NOERROR; //Already active
                }
            if (m_pObj->m_fAllowInPlace)
                {
                if (SUCCEEDED(m_pObj->InPlaceActivate(pActiveSite
                    , TRUE)))
                    return NOERROR;
                }
            //FALL THROUGH
        //End CHAPTER23MOD
        case OLEIVERB_OPEN:
            //CHAPTER23MOD
            if (NULL!=m_pObj->m_pIOleIPSite)
                {
                m_pObj->InPlaceDeactivate();
                m_pObj->m_fAllowInPlace=FALSE;
                }
            //End CHAPTER23MOD
            /*
             * If we're not running, make sure we are.  In any
             * case, make the dialog visible and insure it has
             * the right parent now.
             */
            hr=NOERROR;
            if (NULL==m_pObj->m_hDlg)
                hr=m_pObj->m_pImpIRunnableObject->Run(NULL);
            if (FAILED(hr) || NULL==m_pObj->m_hDlg)
                return ResultFromScode(E_OUTOFMEMORY);
            ShowWindow(m_pObj->m_hDlg, SW_SHOW);
            SetFocus(m_pObj->m_hDlg);
            m_pObj->SendAdvise(OBJECTCODE_SHOWOBJECT);
            m_pObj->SendAdvise(OBJECTCODE_SHOWWINDOW);
            break;
        //CHAPTER23MOD
        case OLEIVERB_INPLACEACTIVATE:
            if (NULL!=m_pObj->m_pHW)
                {
                HWND    hWndHW=m_pObj->m_pHW->Window();
                ShowWindow(hWndHW, SW_SHOW);
                SetFocus(hWndHW);
                return NOERROR;
                }
            /*
             * Only inside-out supporting containers will use
             * this verb.
             */
            m_pObj->m_fContainerKnowsInsideOut=TRUE;
            m_pObj->InPlaceActivate(pActiveSite, FALSE);
            break;
        case OLEIVERB_UIACTIVATE:
            m_pObj->InPlaceActivate(pActiveSite, TRUE);
            break;
        //End CHAPTER23MOD
        default:
            return ResultFromScode(OLEOBJ_S_INVALIDVERB);
        }
    return NOERROR;
    }
/*
 * CImpIOleObject::GetUserClassID
 *
 * Purpose:
 *  Used for linked objects, this returns the class ID of what end
 *  users think they are editing.
 *
 * Parameters:
 *  pClsID          LPCLSID in which to store the CLSID.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */
STDMETHODIMP CImpIOleObject::GetUserClassID(LPCLSID pClsID)
    {
    /*
     * If you are not registered to handle data other than yourself,
     * then you can just return your class ID here.  If you are
     * registered as usable from Treat-As dialogs, then you need to
     * return the CLSID of what you are really editing.
     */
    *pClsID=CLSID_Polyline19;
    return NOERROR;
    }
/*
 * CImpIOleObject::SetExtent
 *
 * Purpose:
 *  Sets the size of the object in HIMETRIC units.  Since we're in
 *  a dialog, the size of the object in us is fixed, so we ignore
 *  this call.
 *
 * Parameters:
 *  dwAspect        DWORD of the aspect affected.
 *  pszl            LPSIZEL containing the new size.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */
STDMETHODIMP CImpIOleObject::SetExtent(DWORD dwAspect
    , LPSIZEL pszl)
    {
    //Ignored:  no size change in the dialog.
    return NOERROR;
    }
/*
 * CImpIOleObject::GetExtent
 *
 * Purpose:
 *  Retrieves the size of the object in HIMETRIC units.
 *
 * Parameters:
 *  dwAspect        DWORD of the aspect requested
 *  pszl            LPSIZEL into which to store the size.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */
STDMETHODIMP CImpIOleObject::GetExtent(DWORD dwAspect, LPSIZEL pszl)
    {
    //Delegate directly to IViewObject2::GetExtent
    return m_pObj->m_pImpIViewObject->GetExtent(dwAspect, -1
        , NULL, pszl);
    }
/*
 * CImpIOleObject::Advise
 * CImpIOleObject::Unadvise
 * CImpIOleObject::EnumAdvise
 *
 * Purpose:
 *  Advisory connection functions.
 */
STDMETHODIMP CImpIOleObject::Advise(LPADVISESINK pIAdviseSink
    , LPDWORD pdwConn)
    {
    if (NULL==m_pObj->m_pIOleAdviseHolder)
        {
        HRESULT     hr;
        hr=CreateOleAdviseHolder(&m_pObj->m_pIOleAdviseHolder);
        if (FAILED(hr))
            return hr;
        }
    return m_pObj->m_pIOleAdviseHolder->Advise(pIAdviseSink
        , pdwConn);
    }
STDMETHODIMP CImpIOleObject::Unadvise(DWORD dwConn)
    {
    if (NULL!=m_pObj->m_pIOleAdviseHolder)
        return m_pObj->m_pIOleAdviseHolder->Unadvise(dwConn);
    return ResultFromScode(E_FAIL);
    }
STDMETHODIMP CImpIOleObject::EnumAdvise(LPENUMSTATDATA *ppEnum)
    {
    if (NULL!=m_pObj->m_pIOleAdviseHolder)
        return m_pObj->m_pIOleAdviseHolder->EnumAdvise(ppEnum);
    return ResultFromScode(E_FAIL);
    }
/*
 * CImpIOleObject::SetMoniker
 *
 * Purpose:
 *  Informs the object of its moniker or its container's moniker
 *  depending on dwWhich.
 *
 * Parameters:
 *  dwWhich         DWORD describing whether the moniker is the
 *                  object's or the container's.
 *  pmk             LPMONIKER with the name.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */
STDMETHODIMP CImpIOleObject::SetMoniker(DWORD dwWhich
    , LPMONIKER pmk)
    {
    LPMONIKER       pmkFull;
    HRESULT         hr=ResultFromScode(E_FAIL);
    if (NULL!=m_pObj->m_pIOleClientSite)
        {
        hr=m_pObj->m_pIOleClientSite->GetMoniker
            (OLEGETMONIKER_ONLYIFTHERE, OLEWHICHMK_OBJFULL
            , &pmkFull);
        }
    if (SUCCEEDED(hr))
        {
        if (NOERROR==pmkFull->IsRunning(NULL, NULL, NULL))
            {
            pmkFull->Release();
            return NOERROR;
            }
        //This will revoke the old one if m_dwRegROT is nonzero.
        INOLE_RegisterAsRunning(m_pObj, pmkFull, 0
            , &m_pObj->m_dwRegROT);
        //Inform clients of the new moniker
        if (NULL!=m_pObj->m_pIOleAdviseHolder)
            m_pObj->m_pIOleAdviseHolder->SendOnRename(pmkFull);
        pmkFull->Release();
        }
    return hr;
    }
/*
 * CImpIOleObject::GetMoniker
 *
 * Purpose:
 *  Asks the object for a moniker that can later be used to
 *  reconnect to it.
 *
 * Parameters:
 *  dwAssign        DWORD determining how to assign the moniker to
 *                  to the object.
 *  dwWhich         DWORD describing which moniker the caller wants.
 *  ppmk            LPMONIKER * into which to store the moniker.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */
STDMETHODIMP CImpIOleObject::GetMoniker(DWORD dwAssign
    , DWORD dwWhich, LPMONIKER *ppmk)
    {
    HRESULT         hr=ResultFromScode(E_FAIL);
    *ppmk=NULL;
    /*
     * Since we only support embedded objects, our moniker
     * is always the full moniker from the contianer.
     */
    if (NULL!=m_pObj->m_pIOleClientSite)
        {
        hr=m_pObj->m_pIOleClientSite->GetMoniker
            (OLEGETMONIKER_ONLYIFTHERE, OLEWHICHMK_OBJFULL, ppmk);
        }
    return (NULL!=*ppmk) ? NOERROR : hr;
    }
//Methods not implemented or trivial
STDMETHODIMP CImpIOleObject::InitFromData(LPDATAOBJECT pIDataObject
    , BOOL fCreation, DWORD dw)
    {
    return ResultFromScode(E_NOTIMPL);
    }
STDMETHODIMP CImpIOleObject::GetClipboardData(DWORD dwReserved
    , LPDATAOBJECT *ppIDataObj)
    {
    return ResultFromScode(E_NOTIMPL);
    }
STDMETHODIMP CImpIOleObject::Update(void)
    {
    return NOERROR;
    }
STDMETHODIMP CImpIOleObject::IsUpToDate(void)
    {
    return NOERROR;
    }
STDMETHODIMP CImpIOleObject::SetColorScheme(LPLOGPALETTE pLP)
    {
    return ResultFromScode(E_NOTIMPL);
    }
//Methods implemented using registry helper functions in OLE.
STDMETHODIMP CImpIOleObject::EnumVerbs(LPENUMOLEVERB *ppEnum)
    {
    return OleRegEnumVerbs(m_pObj->m_clsID, ppEnum);
    }
STDMETHODIMP CImpIOleObject::GetUserType(DWORD dwForm
    , LPOLESTR *ppszType)
    {
    return OleRegGetUserType(m_pObj->m_clsID, dwForm, ppszType);
    }
STDMETHODIMP CImpIOleObject::GetMiscStatus(DWORD dwAspect
    , LPDWORD pdwStatus)
    {
    return OleRegGetMiscStatus(m_pObj->m_clsID, dwAspect
        , pdwStatus);
    }

						