C++ (Cpp) FieldPtr::GetChunk Examples

Example #1

File: ado2.cpp Project: zxlooong/minica

BOOL CADORecordset::GetChunk(FieldPtr pField, CString& strValue)
{
	CString str;
	long lngSize, lngOffSet = 0;
	_variant_t varChunk;

	lngSize = pField->ActualSize;		//Á㤶È
	
	str.Empty();
	while(lngOffSet < lngSize)
	{ 
		try
		{
			varChunk = pField->GetChunk(ChunkSize);
			
			str += varChunk.bstrVal;
			lngOffSet += ChunkSize;
		}
		catch(_com_error &e)
		{
			dump_com_error(e);
			return FALSE;
		}
	}

	lngOffSet = 0;
	strValue = str;
	return TRUE;
}

Example #2

File: ChannelDialer.cpp Project: pics860/callcenter

int CDialerChannel::PlayBlob(int nChan, FieldPtr xPlyBlob, BOOL bTermDtmf)
{
	SsmSetDtmfStopPlay( nChan, bTermDtmf );
	SsmClearRxDtmfBuf( nChan );
	
	LONG lDataSize = xPlyBlob->ActualSize;
	if ( lDataSize <= 0 ) return SsmPutUserEvent( E_PROC_PlayEnd, nChan, 0 );
	
	_variant_t TheValue = xPlyBlob->GetChunk(lDataSize);
	LPTSTR *pBuf = NULL;
	SafeArrayAccessData(TheValue.parray, (void **)&pBuf);
	this->SetBuffer( pBuf, lDataSize );
	SafeArrayUnaccessData( TheValue.parray );
	
	if ( SsmPlayMem( nChan, 6, (LPBYTE)BufferPtr, BufferSize, 0, BufferSize - 1 ) )
	return SsmPutUserEvent( E_PROC_PlayEnd, nChan, 0 );
	
	return 0;
}

Example #3

File: ado2.cpp Project: zxlooong/minica

BOOL CADORecordset::GetChunk(FieldPtr pField, LPVOID lpData)
{
	long lngSize, lngOffSet = 0;
	_variant_t varChunk;    
	UCHAR chData;
	HRESULT hr;
	long lBytesCopied = 0;

	lngSize = pField->ActualSize;
	
	while(lngOffSet < lngSize)
	{ 
		try
		{
			varChunk = pField->GetChunk(ChunkSize);

			//Copy the data only upto the Actual Size of Field.  
            for(long lIndex = 0; lIndex <= (ChunkSize - 1); lIndex++)
            {
                hr= SafeArrayGetElement(varChunk.parray, &lIndex, &chData);
                if(SUCCEEDED(hr))
                {
                    //Take BYTE by BYTE and advance Memory Location
                    //hr = SafeArrayPutElement((SAFEARRAY FAR*)lpData, &lBytesCopied ,&chData); 
					((UCHAR*)lpData)[lBytesCopied] = chData;
                    lBytesCopied++;
                }
                else
                    break;
            }
			lngOffSet += ChunkSize;
		}
		catch(_com_error &e)
		{
			dump_com_error(e);
			return FALSE;
		}
	}

	lngOffSet = 0;
	return TRUE;
}

Example #4

File: RsDupRgn.cpp Project: xiongshaogang/mmo-resourse

//读Buffer
bool CRsDupRgn::LoadBufferField(CBaseDBEntity *pGoods, const char* szFiledName, _RecordsetPtr &rs)
{
	if(pGoods == NULL)	return false;

	try
	{
		if(rs->GetadoEOF())
		{
			ReleaseRs(rs);
			return false;
		}

		long lSize=0;
		FieldsPtr fldPtr = rs->GetFields();
		FieldPtr itemPtr = fldPtr->GetItem(szFiledName);
		lSize = itemPtr->ActualSize;

		if(lSize > 0)
		{
			_variant_t varBLOB;
			varBLOB = itemPtr->GetChunk(lSize);

			BYTE *pBuf=NULL;
			SafeArrayAccessData(varBLOB.parray,(void**)&pBuf);
			SafeArrayUnaccessData(varBLOB.parray);

			// 清空SKILL
			CEntityProperty* ep = pGoods->GetDataEntityManager().GetEntityProperty(string(szFiledName));
			if(ep)
				ep->SetBufAttr(0, pBuf, lSize);
		}
	}
	catch(_com_error e)
	{
		PrintErr(CStringReading::LoadString(IDS_DBS_RSDUPRGN,STR_DBS_DUPRGN_LOADRGNOBJERR), e);
		return false;
	}
	return true;
}