persiststorage.cpp
资源名称:vlc-1.0.5.zip [点击查看]
上传用户:kjfoods
上传日期:2020-07-06
资源大小:29949k
文件大小:3k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * persiststorage.cpp: ActiveX control for VLC
- *****************************************************************************
- * Copyright (C) 2005 the VideoLAN team
- *
- * Authors: Damien Fouilleul <Damien.Fouilleul@laposte.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
- #include "plugin.h"
- #include "persiststorage.h"
- using namespace std;
- STDMETHODIMP VLCPersistStorage::GetClassID(LPCLSID pClsID)
- {
- if( NULL == pClsID )
- return E_POINTER;
- *pClsID = _p_instance->getClassID();
- return S_OK;
- };
- STDMETHODIMP VLCPersistStorage::IsDirty(void)
- {
- return _p_instance->isDirty() ? S_OK : S_FALSE;
- };
- STDMETHODIMP VLCPersistStorage::InitNew(LPSTORAGE pStg)
- {
- return _p_instance->onInit();
- };
- STDMETHODIMP VLCPersistStorage::Load(LPSTORAGE pStg)
- {
- if( NULL == pStg )
- return E_INVALIDARG;
- LPSTREAM pStm = NULL;
- HRESULT result = pStg->OpenStream(L"VideoLAN ActiveX Plugin Data", NULL,
- STGM_READ|STGM_SHARE_EXCLUSIVE, 0, &pStm);
- if( FAILED(result) )
- return result;
- LPPERSISTSTREAMINIT pPersistStreamInit;
- if( SUCCEEDED(QueryInterface(IID_IPersistStreamInit, (void **)&pPersistStreamInit)) )
- {
- result = pPersistStreamInit->Load(pStm);
- pPersistStreamInit->Release();
- }
- pStm->Release();
- return result;
- };
- STDMETHODIMP VLCPersistStorage::Save(LPSTORAGE pStg, BOOL fSameAsLoad)
- {
- if( NULL == pStg )
- return E_INVALIDARG;
- if( fSameAsLoad && (S_FALSE == IsDirty()) )
- return S_OK;
- LPSTREAM pStm = NULL;
- HRESULT result = pStg->CreateStream(L"VideoLAN ActiveX Plugin Data",
- STGM_CREATE|STGM_READWRITE|STGM_SHARE_EXCLUSIVE, 0, 0, &pStm);
- if( FAILED(result) )
- return result;
- LPPERSISTSTREAMINIT pPersistStreamInit;
- if( SUCCEEDED(QueryInterface(IID_IPersistStreamInit, (void **)&pPersistStreamInit)) )
- {
- result = pPersistStreamInit->Save(pStm, fSameAsLoad);
- pPersistStreamInit->Release();
- }
- pStm->Release();
- return result;
- };
- STDMETHODIMP VLCPersistStorage::SaveCompleted(IStorage *pStg)
- {
- return S_OK;
- };
- STDMETHODIMP VLCPersistStorage::HandsOffStorage(void)
- {
- return S_OK;
- };