IPERFILE.CPP

/* 
 * IPERFILE.CPP 
 * 
 * Template IPersistFile interface implementation. 
 * 
 * Copyright (c)1993-1996 Microsoft Corporation, All Rights Reserved 
 * 
 * Kraig Brockschmidt, Software Design Engineer 
 * Microsoft Systems Developer Relations 
 * 
 * Internet  :  kraigb@microsoft.com 
 * Compuserve:  >INTERNET:kraigb@microsoft.com 
 */ 
 
 
#include "iperfile.h" 
 
 
/* 
 * CImpIPersistFile:CImpIPersistFile 
 * CImpIPersistFile::~CImpIPersistFile 
 * 
 * Constructor Parameters: 
 *  pObj            LPVOID pointing to the object we live in. 
 *  pUnkOuter       LPUNKNOWN of the controlling unknown. 
 */ 
 
CImpIPersistFile::CImpIPersistFile(LPVOID pObj, LPUNKNOWN pUnkOuter) 
    { 
    m_cRef=0; 
    m_pObj=pObj; 
    m_pUnkOuter=pUnkOuter; 
    return; 
    } 
 
 
CImpIPersistFile::~CImpIPersistFile(void) 
    { 
    return; 
    } 
 
 
 
 
/* 
 * CImpIPersistFile::QueryInterface 
 * CImpIPersistFile::AddRef 
 * CImpIPersistFile::Release 
 * 
 * Purpose: 
 *  Delegating IUnknown members for CImpIPersistFile. 
 */ 
 
STDMETHODIMP CImpIPersistFile::QueryInterface(REFIID riid 
    , LPVOID *ppv) 
    { 
    return m_pUnkOuter->QueryInterface(riid, ppv); 
    } 
 
STDMETHODIMP_(ULONG) CImpIPersistFile::AddRef(void) 
    { 
    ++m_cRef; 
    return m_pUnkOuter->AddRef(); 
    } 
 
STDMETHODIMP_(ULONG) CImpIPersistFile::Release(void) 
    { 
    --m_cRef; 
    return m_pUnkOuter->Release(); 
    } 
 
 
 
 
 
/* 
 * CImpIPersistFile::GetClassID 
 * 
 * Purpose: 
 *  Returns the CLSID of the file represented by this interface. 
 * 
 * Parameters: 
 *  pClsID          LPCLSID in which to store our CLSID. 
 * 
 * Return Value: 
 *  HRESULT         NOERROR or a general error value. 
 */ 
 
STDMETHODIMP CImpIPersistFile::GetClassID(LPCLSID pClsID) 
    { 
    return NOERROR; 
    } 
 
 
 
 
 
/* 
 * CImpIPersistFile::IsDirty 
 * 
 * Purpose: 
 *  Tells the caller if we have made changes to this object since 
 *  it was loaded or initialized new. 
 * 
 * Parameters: 
 *  None 
 * 
 * Return Value: 
 *  HRESULT         Contains S_OK if we ARE dirty, S_FALSE if 
 *                  NOT dirty. 
 */ 
 
STDMETHODIMP CImpIPersistFile::IsDirty(void) 
    { 
    return S_FALSE; 
    } 
 
 
 
 
 
 
 
 
/* 
 * CImpIPersistFile::Load 
 * 
 * Purpose: 
 *  Asks the server to load the document for the given filename. 
 * 
 * Parameters: 
 *  pszFile         LPCSTR of the filename to load. 
 *  grfMode         DWORD flags to use when opening the file. 
 * 
 * Return Value: 
 *  HRESULT         NOERROR or a general error value. 
 */ 
 
STDMETHODIMP CImpIPersistFile::Load(LPCSTR pszFile, DWORD grfMode) 
    { 
    return E_NOTIMPL; 
    } 
 
 
 
 
 
/* 
 * CImpIPersistFile::Save 
 * 
 * Purpose: 
 *  Instructs the server to write the current file into a new 
 *  filename, possibly then using that filename as the current one. 
 * 
 * Parameters: 
 *  pszFile         LPCSTR of the file into which we save.  If NULL, 
 *                  this means save the current file. 
 *  fRemember       BOOL indicating if we're to use this filename as 
 *                  the current file now (Save As instead of Save 
 *                  Copy As). 
 * 
 * Return Value: 
 *  HRESULT         NOERROR or a general error value. 
 */ 
 
STDMETHODIMP CImpIPersistFile::Save(LPCSTR pszFile, BOOL fRemember) 
    { 
    return E_NOTIMPL; 
    } 
 
 
 
 
 
 
 
 
/* 
 * CImpIPersistFile::SaveCompleted 
 * 
 * Purpose: 
 *  Informs us that the operation that called Save is now finished 
 *  and we can access the file again. 
 * 
 * Parameters: 
 *  pszFile         LPCSTR of the file in which we can start 
 *                  writing again. 
 * 
 * Return Value: 
 *  HRESULT         NOERROR or a general error value. 
 */ 
 
STDMETHODIMP CImpIPersistFile::SaveCompleted(LPCSTR pszFile) 
    { 
    return NOERROR; 
    } 
 
 
 
 
 
/* 
 * CImpIPersistFile::GetCurFile 
 * 
 * Purpose: 
 *  Returns the current filename. 
 * 
 * Parameters: 
 *  ppszFile        LPTSTR * into which we store a pointer to 
 *                  the filename that should be allocated with the 
 *                  shared IMalloc. 
 * 
 * Return Value: 
 *  HRESULT         NOERROR or a general error value. 
 */ 
 
STDMETHODIMP CImpIPersistFile::GetCurFile(LPTSTR *ppszFile) 
    { 
    return E_NOTIMPL; 
    }