I'm currently looking into ways to write all the objects in my application to a stream. I don't expect to have more than one or two hundred objects, so a fully-fledged framework like tiOPF seems like overkill. I am trying to find out what the RTL offers to solve this kind of problem.
I came across the interface IStreamPersist, but the documentation only says that "Any class implementing this interface is expected to be able to load its state from a stream or write its state to a stream". It does not say what classes or code actually calls those methods. Delphi has this interface as well, but the documentation for it is no clearer. I've also seen TPersistent in the documentation, but it's not clear whether IStreamPersist is in any way related to it. TPersistent also seems a likely candidate for my streaming requirements, but it does seem to depend on me putting everything into published properties. Lastly, I'm not sure whether this is the right forum for this, but I noticed two minor typos on the SaveToStream documentation page at http:// www.freepascal.org/docs-html/rtl/classes/ istreampersist.savetostream.html. The first typo is in the Description section where the method is called "SaveFromStream" instead of "SaveToStream". Likely a copy-paste snafu. The second is the use of "it's" which should be "its". That is, there should be no apostrophe between the t and the s. The "it's" thing is also on the LoadFromStream page. _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
