STDMETHODIMP CTextObject::DAdvise(FORMATETC* pFormatEtc, DWORD advf, IAdviseSink* pAdvSink, DWORD* pdwConnection)
{
HRESULT hRes = m_spDataAdviseHolder == NULL ? CreateDataAdviseHolder(&m_spDataAdviseHolder) : S_OK;
if (SUCCEEDED(hRes))
hRes = m_spDataAdviseHolder->Advise(this, pFormatEtc, advf, pAdvSink, pdwConnection);
return hRes;
}
/// Function name : DAdvise
// Description : Register for a 'data changed' notification
//
// FORMATETC* pFormat : [in] The data format to monitor for changes
// DWORD dwFlags : [in] flags
// IAdviseSink* pOutput : [out] The OLE object to call when changes occurr
// DWORD* pdwConnectionID : [out] Unique ID to identify the event
//
// Return Value : S_OK if succesful
//
OLE_Method
HRESULT RichEditImage::DAdvise(FORMATETC* pFormat, DWORD dwFlags, IAdviseSink* pOutput, DWORD* pdwConnectionID)
{
HRESULT hResult; // Operation result
// Create events object if necessary
if (!m_pEvents AND FAILED(hResult = CreateDataAdviseHolder(&m_pEvents)))
return hResult;
// Register connect using events object
return m_pEvents->Advise(this, pFormat, dwFlags, pOutput, pdwConnectionID);
}
ASSERTDATA
//+----------------------------------------------------------------------------
//
// Member:
// CDataAdviseCache::CreateDataAdviseCache, static public
//
// Synopsis:
// Creates an instance of the CDataAdviseCache
//
// Arguments:
// [pp] -- pointer to a location to where to return the
// newly created CDataAdviseCache
//
// Returns:
// E_OUTOFMEMORY, S_OK
//
// Notes:
//
// History:
// 11/02/93 - ChrisWe - file cleanup and inspection
//
//-----------------------------------------------------------------------------
#pragma SEG(CreateDataAdviseCache)
FARINTERNAL CDataAdviseCache::CreateDataAdviseCache(LPDATAADVCACHE FAR* pp)
{
VDATEHEAP();
VDATEPTRIN(pp, LPDATAADVCACHE);
// try to allocate the CDataAdviseCache
if(NULL == (*pp = new DATAADVCACHE))
return ReportResult(0, E_OUTOFMEMORY, 0, 0);
// initialize the DataAdviseHolder member
if(CreateDataAdviseHolder(&((*pp)->m_pDAH)) != NOERROR)
{
// free the DataAdviseCache
delete *pp;
*pp = NULL;
return ReportResult(0, E_OUTOFMEMORY, 0, 0);
}
return(NOERROR);
}
