Using stream I/O in Doc/View model

I have run into problem using TOutStream/TInStream classes in my OWL application. These stream classes derived from ostream/istream classes. This means that it write/read data in text format! How can I save data in real binary format (not only my own classes, but other OWL and BCPP classes, TPoint, for example)?
airatAsked:
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msmitsCommented:
You could just try opening the stream in binary mode and writing the class you want on the output to the stream.
The problem with this is that some of the classes have internal pointers to other objects and possibly C strings (char *), which will then not be stored in your file.

If you really want such functionality, I suggest you create a derived class for each class you want streamable and provide extra functions to read and write the important information from and to file.
I believe C++Builder VCL classes are all streamable. At least they are all derived from a class with the substring streamable in the classname.
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msmitsCommented:
Could you delete the other question that I didn't answer. It is identical to this one and will only cost you points.

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