C++ (Cpp) OleCreateStaticFromData Examples

Example #1

File: SkinRichEdit.cpp Project: codercold/whgame

//获取信息
bool CImageDataObject::IntercalateReObject(REOBJECT & ReObject, IOleClientSite * pIOleClientSite)
{
	//状态判断
	ASSERT(m_StgMedium.hBitmap!=NULL);
	if (m_StgMedium.hBitmap==NULL) return false;

	//创建对象
	if ((m_pIOleObject==NULL)||(m_pIStorage==NULL))
	{
		try
		{
			//创建存储
			LPLOCKBYTES lpLockBytes=NULL;
			CreateILockBytesOnHGlobal(NULL,TRUE,&lpLockBytes);
			StgCreateDocfileOnILockBytes(lpLockBytes,STGM_SHARE_EXCLUSIVE|STGM_CREATE|STGM_READWRITE,0,&m_pIStorage);

			//创建对象
			OleCreateStaticFromData(this,IID_IOleObject,OLERENDER_FORMAT,&m_FormatEtc,NULL,m_pIStorage,(VOID * *)&m_pIOleObject);
			OleSetContainedObject(m_pIOleObject,TRUE);

			//对象效验
			ASSERT((m_pIOleObject!=NULL)&&(m_pIStorage!=NULL));
			if ((m_pIOleObject==NULL)||(m_pIStorage==NULL)) throw 0;
		}
		catch (...)
		{
			//释放对象
			if (m_pIOleObject!=NULL)
			{
				m_pIOleObject->Release();
				m_pIOleObject=NULL;
			}

			//释放对象
			if (m_pIStorage!=NULL)
			{
				m_pIStorage->Release();
				m_pIStorage=NULL;
			}

			return false;
		}
	}

	//设置变量
	ZeroMemory(&ReObject,sizeof(ReObject));

	//属性信息
	ReObject.cbStruct=sizeof(ReObject);
	ReObject.cp=REO_CP_SELECTION;
	ReObject.dvaspect=DVASPECT_CONTENT;
	m_pIOleObject->GetUserClassID(&ReObject.clsid);

	//接口信息
	ReObject.pstg=m_pIStorage;
	ReObject.poleobj=m_pIOleObject;
	ReObject.polesite=pIOleClientSite;

	return true;
}

Example #2

File: ImageDataObjectHlp.cpp Project: Seldom/miranda-ng

// returns true on success, false on failure
//bool InsertBitmap(IRichEditOle* pRichEditOle, HBITMAP hBitmap, HGLOBAL hGlobal)
bool InsertBitmap(IRichEditOle* pRichEditOle, HENHMETAFILE hEmf)
{
	SCODE sc;

	// Get the image data object
	//
	static const FORMATETC lc_format[] =
	{
		{ CF_ENHMETAFILE, 0, DVASPECT_CONTENT, -1, TYMED_ENHMF }//,
		//		{ CF_BITMAP, 0, DVASPECT_CONTENT, -1, TYMED_GDI },
		//		{ CF_TEXT,   0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL } 
	};

	STGMEDIUM lc_stgmed[] =
	{
		{ TYMED_ENHMF, { (HBITMAP)hEmf }, 0 }//,
		//		{ TYMED_GDI, { hBitmap }, 0 },
		//		{ TYMED_HGLOBAL, { (HBITMAP)hGlobal }, 0 }
	};

	IDataObject *pods;
	CreateDataObject(lc_format, lc_stgmed, 1, &pods);

	// Get the RichEdit container site
	//
	IOleClientSite *pOleClientSite;
	pRichEditOle->GetClientSite(&pOleClientSite);

	// Initialize a Storage Object
	//
	LPLOCKBYTES lpLockBytes = NULL;
	sc = CreateILockBytesOnHGlobal(NULL, TRUE, &lpLockBytes);
	if (sc != S_OK)
	{
		pOleClientSite->Release();
		return false;
	}

	IStorage *pStorage;
	sc = StgCreateDocfileOnILockBytes(lpLockBytes,
		STGM_SHARE_EXCLUSIVE | STGM_CREATE | STGM_READWRITE, 0, &pStorage);
	if (sc != S_OK)
	{
		lpLockBytes->Release();
		pOleClientSite->Release();
		return false;
	}

	// The final ole object which will be inserted in the richedit control
	//
	IOleObject *pOleObject;
	sc = OleCreateStaticFromData(pods, IID_IOleObject, OLERENDER_FORMAT,
		(LPFORMATETC)lc_format, pOleClientSite, pStorage, (void **)&pOleObject);
	if (sc != S_OK)
	{
		pStorage->Release();
		lpLockBytes->Release();
		pOleClientSite->Release();
		return false;
	}

	// all items are "contained" -- this makes our reference to this object
	//  weak -- which is needed for links to embedding silent update.
	OleSetContainedObject(pOleObject, TRUE);

	// Now Add the object to the RichEdit 
	//
	REOBJECT reobject = { 0 };

	reobject.cbStruct = sizeof(REOBJECT);
	reobject.cp = REO_CP_SELECTION;
	reobject.dvaspect = DVASPECT_CONTENT;
	reobject.poleobj = pOleObject;
	reobject.polesite = pOleClientSite;
	reobject.pstg = pStorage;
	reobject.dwFlags = REO_BELOWBASELINE;

	sc = pOleObject->GetUserClassID(&reobject.clsid);
	if (sc != S_OK)
	{
		pOleObject->Release();
		pStorage->Release();
		lpLockBytes->Release();
		pOleClientSite->Release();
		return false;
	}

	// Insert the bitmap at the current location in the richedit control
	//
	sc = pRichEditOle->InsertObject(&reobject);

	// Release all unnecessary interfaces
	//
	pOleObject->Release();
	pStorage->Release();
	lpLockBytes->Release();
	pOleClientSite->Release();
	pods->Release();

	return sc == S_OK;
}