private function loadOLE($pFilename)
{
// OLE reader
$oOLE = new OLERead();
$oOLE->read($pFilename);
// PowerPoint Document Stream
$this->streamPowerpointDocument = $oOLE->getStream($oOLE->powerpointDocument);
// Current User Stream
$this->streamCurrentUser = $oOLE->getStream($oOLE->currentUser);
// Get summary information data
$this->streamSummaryInformation = $oOLE->getStream($oOLE->summaryInformation);
// Get additional document summary information data
$this->streamDocumentSummaryInformation = $oOLE->getStream($oOLE->docSummaryInfos);
// Get pictures data
$this->streamPictures = $oOLE->getStream($oOLE->pictures);
}