[fpc-pascal] how to directly access field/record value of TBufDataSet?

LacaK lacak at zoznam.sk
Tue Oct 1 09:17:18 CEST 2013

Dennis Poon  wrote / napĂ­sal(a):
>>> Also, how do I use the     procedure LoadFromStream(AStream : 
>>> TStream; Format: TDataPacketFormat = dfAny)?
>>> Especially, I don't understand the TDataPacketFormat parameter.
>> Using Format parameter you can signal to DatapacketReader in which 
>> format expect data (dfBinary, dfXML etc)
>> It is not required , when not set there is procedure which tests 
>> "incoming" data using RecognizeStream method and select those 
>> DatapacketReader, which is able handle "incoming" data.
>> In other words each registered DataPacketReader is able say if is 
>> able handle data in stream or not.
>> (examines begining of stream and looks for own "format identification")
>> -Laco.
> Let me clarify.  How do I SaveToStream from another TDataset 
> descendant and LoadFromStream in TBufdataSet?
> I am trying to call SaveToStream from some Delphi TDataset Descendent 
> to to be loaded by FPC's TBufdataSet.LoadFromStream.  How should I do it?
Can you try SaveToStream(..., dfXML) ?
Because Binary formats are not compatible between Delphi and FPC
But in XML should be situation better ;-)
If you encounter any incompatibility please let us know ... (and attach 
XML saved by Delphi + if possible any test application)

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