stream object

Hello, rather new to C++, but I need a solution to stream an object in C++.
I tried the following code, and wanted to store the object dt in memory buffer, and read it back into newdt.
But nothing changed in the newdt.
Wat did I do wrong?

Code:

class DataClass : public TStreamableBase {
	public:
    int a;
    int b;
    DataClass(){};
    private:
    DECLARE_STREAMABLE(  , DataClass,1);
};

void* DataClass::Streamer::Read(ipstream& in, uint32) const
{
  ReadBaseObject(static_cast<DataClass*>(GetObject()), in);
  in >> GetObject()->a >> GetObject()->b;
  return GetObject();
}

void DataClass::Streamer::Write(opstream& out) const
{
  	WriteBaseObject(static_cast<DataClass*>(GetObject()), out);
	out << GetObject()->a << GetObject()->b;
}

IMPLEMENT_STREAMABLE ( DataClass );




void main(){
    //FILE *fp;
    char * buffer[100];
    int stop;

    DataClass dt;
    dt.a=100;
    dt.b=200;

    DataClass newdt;
    newdt.a=1;
    newdt.b=2;

    printf(" Initial Contence of the buffer newtd is: %d, %d \n",newdt.a,newdt.b);
    streambuf bf((char *)(&newdt), sizeof(DataClass));
    ptbf = &bf;
    opstream outpstr(ptbf);
    ipstream inpstr(ptbf);
    ModuleId mid = GetModuleId();
    outpstr.writeObject(&dt, 1,  mid);
    inpstr.readBytes(&newdt, sizeof(DataClass));
    printf(" Contence of the buffer newtd is: %d, %d \n",newdt.a,newdt.b);
}

Thanks

You might want to give more context since you are using components that do not come from the standard library. For example, what library/framework are you using?

I use Borland C++ 5, under Windows (want to switch to old DOS, 80186 code) and used object stream objstrm.h...if that's what you asked me...