calling createInstanceInitFromMediaDescriptor with a MediaDescriptor which only
contains a URL does not work. The typedection has to ask for the preferredFilter.

Best regards,

Ocke

// try another way to get the correct filter name
		if ( !aFilterName.getLength() && aTypeName.getLength() )
		{
			uno::Reference<container::XNameAccess>
xNameAccess(xTypeDetection,uno::UNO_QUERY);
			if ( xNameAccess.is() && xNameAccess->hasByName(aTypeName) )
			{
				uno::Sequence<beans::PropertyValue> aTypes;
				xNameAccess->getByName(aTypeName) >>= aTypes;
				const beans::PropertyValue* pIter = aTypes.getConstArray();
				const beans::PropertyValue* pEnd	  = pIter + aTypes.getLength();
				for(;pIter != pEnd && !pIter->Name.equalsAscii("PreferredFilter");++pIter)
					;
				if ( pIter != pEnd )
				{
					pIter->Value >>= aFilterName;
					sal_Int32 nLen = aTempMedDescr.getLength();
					aTempMedDescr.realloc(nLen+1);
					aTempMedDescr[nLen] = *pIter;
				}
			}
		}