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The answer I got was like what I already read in the VC++ documents. The problem<br />
is it didn't work, maybe because it was items in a CMap.<br />
Anyway I solved it by trying to read it once with 3 arguments and if I encounter an<br />
exception, I close the archive and open it again trying to read 2 arguments.<br />

</div>


The answer I got was like what I already read in the VC++ documents. The problem
is it didn't work, maybe because it was items in a CMap.
Anyway I solved it by trying to read it once with 3 arguments and if I encounter an
exception, I close the archive and open it again trying to read 2 arguments.


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I added a data member to a class that had a Serialize() function. The Serialize() function didn't support versioning. Now I want to serialize the new data member but to be compatible with previous serializaions.<br />
My class has DECLARE_SERIAL(...) and IMPLEMENT_SERIAL(...,...,V<wbr />ERSIONABLE<wbr />_SCHEMA|1)<wbr /> but when I use the function CArchive::GetObjectSchema(<wbr />) I always get -1.<br />
I can't distinguish between old versions and new ones.<br />
The class I serialize is an item in a CMap object that I serialize in another class.<br />
How can I distinguish the different versions?<br />
Thanks, Tomer
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I added a data member to a class that had a Serialize() function. The Serialize() function didn't support versioning. Now I want to serialize the new data member but to be compatible with previous serializaions.
My class has DECLARE_SERIAL(...) and IMPLEMENT_SERIAL(...,...,VERSIONABLE_SCHEMA|1) but when I use the function CArchive::GetObjectSchema() I always get -1.
I can't distinguish between old versions and new ones.
The class I serialize is an item in a CMap object that I serialize in another class.
How can I distinguish the different versions?
Thanks, Tomer

Serialization with version

Kernel and system programming is the process of creating the software necessary for a computer or device to function and operate other programs. Some operating systems (such as Microsoft Windows) are proprietary, but others, such as the various Linux distributions, are open source.